100+ Master’s Level Experts in Chemistry And Related Subjects Will Do Your Written Homework in 3-6 Hours

No matter what kind of academic paper you need, it is simple and secure to hire an essay writer for a price you can afford at Chemhomeworkhelp. Save more time for yourself.

ORDER NOW
1

HAPPY CUSTOMERS

%

SATISFACTION RATE

ACTIVE WRITERS

Basic features

  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support

Ondemand options

  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading

Paper Format

  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Affordable prices

HIGH SCHOOL
FROM

$10 / PAGE

COLLEGE
FROM

$13 / PAGE

Our prices depend on the urgency of your assignment, your academic level, the course subject, and the length of the assignment. Basically, more complex assignments will cost more than simpler ones. The level of expertise is also a major determinant of the price of your assignment.

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

 

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26

Chemistry Homework Help- Chemistry Answers

College students looking for chemistry homework help tend to find specific topics uncomfortable and difficult to comprehend. Hiring experts online becomes the best option as they provide comprehensive and procedural solutions enabling students to grasp readily. Besides, it results in the submission of top-quality chemistry assignments suitable for students to score excellent grades in the subject. If you find any chemistry assignment tricky and with the potential to earn you undesirable grades, considering chemistry homework help online is essential.

With chemistry homework help, students get a seamless approach to submitting flawless and high-quality papers that significantly boost their overall score. Yet, it is essential to learn about a platform that delivers the best chemistry assignment help services. Here is what to know about an online assignment help service that gives first-rate chemistry solutions.

 

Get Quality Chemistry Homework Help Online

Most students term chemistry as an intriguing science subject full of exigent formulas, atoms, elements, chemicals, molecules, and compounds. Some students even find the subject challenging during the introductory period before getting to study independent concepts. Such a reputation has led students often asking, ‘can you do chemistry homework and deliver good quality papers?’ to anyone capable of helping them.

Chemhomeworkhelp.com understands such scenarios hence comprises a well-informed, passionate, and experienced team of chemistry helpers. They understand the chemistry subject well and can provide homework help to students seeking professional chemistry help online. Our chemistry experts can handle the assignment efficiently while providing explanations for a better understanding. Coupled with perfectly formatted, unique, and immaculate chemistry papers, you get top-quality chemistry papers that earn you the grade you desire.

 

Find Chemistry Help for All Your Chemistry Problems with Ease

Several chemistry homework help platforms promise to deliver the best services, but a few keep their end of the bargain. Unlike such services, Chemhomeworkhelp.com never disappoints whenever you need help with chemistry homework on our platform. But what makes us unique from the competition?

  • Guaranteed Excellent Grades: Different students have varying chemistry assignments that can affect their final results when they score low. Our chemistry homework helper can help submit the best paper for top grades.
  • Money-Back Guarantee: Whenever you pay for chemistry assignment help, you expect the best worth your money. Chemhomeworkhelp.com ensures you get the best service; if not, we’ll refund your money. We also offer refunds if you make double payments to ensure you are always satisfied with us.
  • Save Time: Getting research materials and finding time to write your paper can be time-consuming. The best approach is hiring an expert to help you with such instances and save you valuable time.
  • 24/7 Customer Support: When getting help with chemistry homework, you may, at times, require detailed solutions from company representatives. We ensure you get prompt customer support as we have reliable customer support to answer queries and complaints around the clock.

 

PROCEED TO ORDER
Untitled design 26

Find the Best Chemistry Homework Helpers for Your Chemistry Tests and Exams

Typically, most students find chemistry subject overwhelming, more so when assigned assignments that seem undoable. Some even have a bad attitude towards the subject, making it even harder to solve simple tests. This is the primary reason why most of them opt for chemistry homework help websites that offer such services.

When you hire the right platform, you gain access to the best chemistry tutor or helper who can make the subject enjoyable, simple, and exciting. Notably, you’ll get new ideas on how to handle such problems prepared procedurally. Online chemistry tutors can provide stepwise approaches while allowing you to get detailed explanations on some topics you find problematic. In turn, students can attend different chemistry exams and score high in this subject.

The Process of Paying Someone to Do My Chemistry Homework for Me

If the deadline is imminent and you have a chemistry assignment yet to be completed, hiring an expert becomes the best possible solution. But you can become confused wondering how to access professionals at Chemhomeworkhelp.com. The process is straightforward, whether you need high school or college chemistry homework help. However, paying our exerts depends on your assignment’s nature; soft copy, hard copy, or online class.

  • Soft Copy Chemistry Assignment: If you have a soft copy assignment in PDF, word document, or any other format, you can readily attach your chemistry assignment through the order form or mail it to us. Our customer support will evaluate your assignment and provide a quote. After payments, a chemistry paper will get to work on your paper immediately.
  • Hard Copy Assignments: For hard copy chemistry assignments, you need to take a clear and high-quality photo of the homework and attach it through our order form. In case you experience any difficulties, feel free to contact us for assistance.
  • Chemistry Online Classes: We also offer online classes for chemistry problems, which are solved in real-time. With this, you need to provide your login credentials, and we’ll assess your assignment and later provide a price quote. After settling your payments, our chemistry tutors will work on your assignment and deliver within your timeframe.

Finding Chemistry Homework Help Is Easy.

Today, chemistry homework help has become an essential tool for students to succeed in the subject. This is because online chemistry helpers simplify existing problems, making them seem simpler. Sequentially, students discover effective means of handling such problems and score high grades.

So, the next time you say, ‘I need help with my chemistry homework,’ Chemhomeworkhelp.com is the place to be as you’ll never regret choosing us. Let us know what you need, and we’ll gladly assign our proficient writers specializing in the topic to handle the problem for you. That said, our chemistry experts can provide below academic help within the subject.

Help with Analytical Chemistry Homework

Analytical chemistry is an approach used in science to determine a given substance or material’s chemical composition. It involves loads of lab work to separate, extract, residue, and filtrate while using different instruments to analyze either qualitative or quantitative. Lab reports hence come in to showcase your results to your professor. If you find it hard to do so, Chemhomeworkhelp.com can help you submit the best lab report.

Help with Physical Chemistry Homework

This is where physics interacts with chemistry, and students unfamiliar with physics basics are likely to fail. Typically, this chemistry concept focuses on molecular levels and energy exchange, which are the most difficult assignments. When you face such problems, the first thing is trying to learn where to get help with chemistry homework and get the grades you desire. We can help you understand the principles of physics chemistry and submit quality assignments.

Help with Quantum Chemistry Homework

It is no doubt quantum chemistry is the most complex topic as it combines both theory and lab reports, including quantum mechanics and physical models. It also includes computation chemistry and quantum theories, atoms and molecules. When assigned a quantum chemistry homework, you may become bemused and begin searching ‘quantum homework help chemistry,’ intending to find helpers online. Save the hassle and stress and hire a quantum chemistry expert at Chemhomeworkhelp.com.

Help with Organic Chemistry Homework

Organic chemistry is the study of organic compounds, including finding individual structures and learning how they react. Several organic concepts, such as planar geometry and hybridization, are challenging to students. With this, it requires organic chemistry homework help to enable students to ease through complex concepts. Chemhomeworkhelp.com consists of organic chemistry tutors to provide real-time solutions and written solutions from our top-rated chemistry helpers.

Help with Inorganic Chemistry Homework

Homework help high school chemistry, including colleges and universities, applies to inorganic chemistry, which involves compounds without C-H bonds. Like organic chemistry, students struggling with inorganic chemistry assignments can use our services to get prompt solutions from our experts. Chemhomeworkhelp.com hires the best team to ensure you get the best from us for inorganic chemistry assignment help.

Help with Chemistry Homework on Any Topic

Several other chemistry topics, including polymer chemistry and surface chemistry, can be uncomfortable to students. At Chemhomeworkhelp.com, we can help you get through any topic as we have highly qualified and chemistry experts on our platform. Besides, we offer chemistry homework help chat that ensures we remain in touch with your writer or interact with a chemistry tutor swiftly.

Can You Make My Homework Look Better?

Nothing makes Chemhomeworkhelp.com stand out in the industry than delivering premier chemistry assignments to students from different study levels. Whether you need AP chemistry homework help or have a problem with particular topics, we are who call. We have the best writers who provide procedural solutions to the problems while writing it perfectly without any grammatical errors. Besides, we provide comprehensive checking, editing, and proofreading services to guarantee authentic and flawless assignments even when you seek chemistry homework help balancing equations.

That said, yes! We can make your homework better and with higher chances of earning better grades. Our online chemistry tutors also play a vital role in providing real-time solutions to assignments on our websites, unlike using a chemistry help app. Chemhomeworkhelp.com, therefore, is the best platform that gives the best chemistry homework help in the industry.

Chemistry homework help has proven to become essential for students finding specific chemistry assignments tricky. Besides, it accompanies several benefits than getting top-quality papers to earn an A or B in the overall score. Chemhomeworkhelp.com, therefore, remains the right platform that gives unrivaled chemistry homework solutions to different students.

Delivery

We know how important any deadline is to you; that’s why everyone in our company has their tasks and perform them promptly to provide you with the required assistance on time. We even have an urgent delivery option for short essays, term papers, or research papers needed within 8 to 24 hours.

We appreciate that you have chosen our cheap essay service, and will provide you with high-quality and low-cost custom essays, research papers, term papers, speeches, book reports, and other academic assignments for sale.

24/7 support

We provide affordable writing services for students around the world. That’s why we work without a break to help you at any time, wherever you are located. Contact us for cheap writing assistance.

PROCEED TO ORDER
"; Analytical Chemistry Final Exam - Chem Homework Help
Analytical Chemistry Final Exam

word image 2259 scaled

word image 2260 scaled

word image 2261 scaled

word image 2262 scaled

word image 2263 scaled

word image 2264 scaled

word image 2265 scaled

word image 2266 scaled

word image 2267 scaled

word image 2268 scaled

word image 2269 scaled

Since CE separates analytes by their size to charge ratio we need to look at

the charge of the analytes first. Since they are all of different charges we can

use that to identify the order in which they will migrate. The order in which they

will pass the detector will be:

1

– benzylammonium

2

– benzyl alcohol

3

– benzoate

The reason for this that the negative electrode is at the outlet of the capillary

and the positive electrode is at the inlet. As such cations are attracted to the

outlet, and anions are slightly repelled by it. The bulk flow of solution pulls the

all species (including neutral molecules) towards the outlet at the same rate.

–

+

word image 2270 word image 2271 word image 2272

Electroosmotic flow

Detector

Name : RedID # :


 

Show your work, answers alone will not receive partial credit. Where indicated, please enter your answer the box beneath the question. There are blank pages near the end of the exam to use as scratch paper. Answers without the units indicated (when necessary) will not be graded.

The last page of the exam contains a selection of data tables and equations for your use – feel free to remove the page from the exam.

 

Question

Value

Score

1

4

 

2

6

 

3

5

 

4

6

 

5

8

 

6

6

 

7

5

 

8

6

 

9

6

 

10

8

 

Total

60

 

By signing below I acknowledge that I will abide by the SDSU Academic Code of Honor as it pertains to academic integrity. For this exam I will not make use of any unauthorized materials, nor will I engage in any practices that otherwise fall within the broader definition of “cheating”.

_____________________________________________________________________________________

Signature Date

If this pledge is not signed the instructor reserves the right to not grade the exam and award a score of 0 for this exam in the calculation of the final grade.


  1. (4 points) Following a series of measurements and calculations you have determined that the concentration of calcium in a water source is 26.812316 ppm ± 0.0046641%. Express the result with the absolute uncertainty, and the correct number of significant figures.


 

word image 2273

  1. (6 points) The concentration of CO2 in the atmosphere is currently 412 ppm. The density of the atmosphere is 0.0012 g/mL. What is the molar concentration of CO2 in our atmosphere?


 

word image 2274

 

 

 

 

 

 

 

  1. (5 points) A stock solution of sodium sulfite has a concentration of 12.049 ±0.004 mM. Using a pipette with a volume of 10.0023 ±0.0008 mL, you transfer an aliquot of the solution to a 250.0 mL ±0.04% volumetric flask and dilute the solution to volume with water. What is the concentration (including the absolute uncertainty) of the diluted sodium sulfite solution?


 

word image 2275

 

 

  1. (6 points) What is the pH of a solution prepared by mixing 125 mL of 45.02 mM disodium phosphate, with 45.00 mL of 60.31 mM trilithium phosphate?


word image 700

  1. word image 701 (8 points) You need to prepare 300.0 mL of a buffer with a concentration of 37.90 mM and a pH of 9.34. At your disposal are the following chemicals:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  1. Accounting for the activity of the ions in the solution, what is the concentration of iron free in solution for a solution containing 12.06 mM KNO3 (an inert salt) and saturated with Fe3(PO4)2 (Ksp = 1×10–36)? Note: the iron and phosphate ions do not contribute to the overall ionic strength of the solution.


word image 2276 word image 2277

 

7)

(5

points)

A 25.00 mL solution containing 18.00 mM

arsenic

acid is titrated with 47.35

mL of a 15.00 mM solution of potassium hydroxide. What is the pH of the solution

once the titrant is added?

 

word image 2278

  1. A solution of bromide in base can be oxidized by reaction with rhodium(VI) – see half reactions below. A 20.00 mL solution containing 12.00 mM Br– and buffered to pH 9.85, is titrated with 15.00 mL of a 8.00 mM Rh6+ solution. What potential will be measured by a potentiometer with a platinum wire is as the cathode, and a S.C.E. (0.241 V) as the anode?


BrO

–

+ H

2

O + 2e

–

 

⇌

Br

–

+ 2OH

–

E° = 0.766 V

Rh

6+

+ 3e

–

 

⇌

Rh

3+

E° = 1.48 V

word image 2279

Replicate

Chemist

A

Chemist

B

1

15.87

15.76

2

15.79

15.80

3

15.91

15.73

4

15.83

15.74

5

15.80

15.72

6

15.8

15.78

AVG

15.83

15.76

STDEV

0.05

0.03

  1. word image 2280 Two analytical chemists are measuring the Soil PCB Content in ppb amount of PCB contamination in the soil of an old industrial facility. They each use a different analytical approach to measure fractions of the same soil sample. Tabulated to the right are the results that they obtained. Are their results equivalent at the 95% confidence level? Support your answer

mathematically. Note: the data has already been Grubb’s tested and all values are valid.


 

word image 2281

 

10)(8 points) As part of a 2008 research study wastewater going to a treatment plant was sampled for illicit drugs during a music festival in Spain. The water was found to contain large amounts of MDMA (ecstasy), benzoylecgonine (the main metabolite of cocaine). The analysis was done with a liquid chromatography (LC) instrument.


 

Compound

Concentration (µg/L)

Signal

MDMA

8.46

15,610.0

Benzoylecgonine

9.94

110,051

Mesityl oxide

23.13

36,205

word image 702 In order to quantify the drugs and metabolites LC Calibration Data the LC was tested with a known mixture of MDMA, benzoylecgonine, and an internal standard mesityl oxide. Results for the testing of the instrument are tabulated to the right.


 

When the wastewater was tested, a 10.00 mL

 

Wastewater Analysis Data

 

 

 

 

2

µ= x ± ts sd = ∑(di −d) ey = ex21 +ex22 texp = µ− x n n−1s

n

∑

x

i

−

x

(

)

2

n

−

1

s = texp = K = e−ΔG0RT ΔG =ΔH −TΔS

d

n

sd

G = xout − x F = sA2 t = xA − xB × nAnB t = xA − xB

exp exp 2 expexp 2 2 s sB spool nA +nB sA + sB

nA nB

%s2 s2 (2 ‘ A + B *

n

A

−

1

(

)

s

A

2

+

n

B

−

1

(

)

s

B

2

n

A

+

n

B

−

2

&nA nB )2 2 v = 2 2 −2 spool = %ey = %ex1 +%ex2

+ sA2 . + sB2 .

– 0 – 0 ,nA / ,nB / +

nA +1 nB +1

E =K+ 0.05916 log([A]+KA,I [I]zzAI ) KA,I = [Az]zAI “!H+#$= zA

K

a

1

K

a

2

F

+

K

a

1

K

w

K

a

1

+

F

x

=

−

b

±

b

2

−

4

a

c

[I]

SA Sspike 2a

=

word image 2282CA CA %’VA (*+Cspike %’Vspike (*

&VT ) & VT )

SA Sspike

=

CA %’VO (* CA %’VO (*+Cspike %’Vspike (*

F(0.05, nnum, ndenom) for a Two-Tailed F-Test

.onuodenom “m 1 2 3 4 5 6

1

2

3

4

5

6

647.8 799.5

864.2

899.6

921.8

937.1

38.51 39.00

39.17

39.25

39.30

39.33

17.44 16.04

15.44

15.10

14.88

14.73

12.22 10.65

9.979

9.605

9.364

9.197

10.01 8.434

7.764

7.388

7.146

6.978

8.813 7.260 6.599 6.227 5.988 5.820

word image 2283 &VF ) &VF ) & VF )

SA kACA K×CIS K = CIS × SA

= =

SIS kISCIS CA CA SIS

Page

Table 6.2 Effective Diameters (a) for Selected Ions

Ion Effective Diameter (nm)

H3O+

0.9

Li+

0.6

Na+, IO3–, HSO3–, HCO3–, H2PO4–

0.45

OH–, F–, SCN–, HS–, ClO3–, ClO4–, MnO4–

0.35

K+, Cl–, Br–, I–, CN–, NO2–, NO3–

0.3

Cs+, Tl+, Ag+, NH4+

0.25

Mg2+, Be2+

0.8

Ca2+, Cu2+, Zn2+, Sn2+, Mn2+, Fe2+, Ni2+, Co2+

0.6

Sr2+, Ba2+, Cd2+, Hg2+, S2–

0.5

Pb2+, CO32–, SO32–

0.45

Hg22+, SO42–, S2O32–, CrO42–, HPO42–

0.40

Al3+, Fe3+, Cr3+

0.9

PO43–, Fe(CN)63–

0.4

Zr4+, Ce4+, Sn4+

1.1

word image 2284

Fe(CN)64– 0.5

Source: Kielland, J. J. Am. Chem. Soc. 1937, 59, 1675–1678.

t-Test Values

Values of t for…

…a confidence interval of:

 

90%

95%

…an α value of:

Degrees of Freedom

 

0.10

0.05

−0.51(zA)2 µ logγA =

1 6.314 12.706 1+3.3×αA× µ

2 2.920

4.303

3 2.353

3.182

4 2.132

2.776

5 2.015

2.571

6 1.943

2.447

word image 703S2 =S2 +S2 total samp. meth.

57

La

138.9

58

Ce

140.1

59

Pr

140.9

60

Nd

144.2

61

Pm

[145]

62

Sm

150.4

63

Eu

152.0

64

Gd

157.3

65

Tb

158.9

66

Dy

162.5

67

Ho

164.9

68

Er

167.3

69

Tm

168.9

70

Yb

173.0

89

Ac

[227]

90

Th

232.0

91

Pa

231.0

92

U

238.0

93

Np

[237]

94

Pu

[244]

95

Am

[243]

96

Cm

[247]

97

Bk

[247]

98

Cf

[251]

99

Es

[252]

100

Fm

[257]

101

Md

[258]

102

No

[259]

*

Lanthanoids

**

Actinoids

 

Name

Structure*

pKa†

Acetic acid

(ethanoic acid)

Ammonia

CH3CO2NHH3

NH4%

4.756

9.245

Page

2.31

As

O

H

O

Arsenic acid HOOH 7.05

(hydrogen arsenate)11.9

CyclohexylamineNH%3 10.567

Hypobromous acid (hydrogen hypobromite)

HOBr

8.63

Hypochlorous acid

(hydrogen hypochlorite)

HOCl

7.53

Hypoiodous acid

(hydrogen hypoiodite)

HOI

10.64

2.148

P

O

Phosphoric acid* HOOH 7.198

(hydrogen phosphate)12.375

OH

word image 2285 word image 2286

Order a unique copy of this paper
(550 words)

Approximate price: $22