Free Chemistry Help With Online Solutions

Chemistry is a subject that is challenging for many students. Students often ask the question “ how can I improve at Chemistry.” The three reasons students struggle with chemistry are 1) Not getting help when needed 2) Not learning from incorrect answers given in homework and on tests. 3) Not willing to work hard.

Chemistry is required for many majors. Often times students in these majors have little or no interest in science. This creates an “ all I need to do is pass” attitude which results in a huge class drop out rate. The easiest way to be successful at any endeavor is to start with a good attitude. When the attitude is right it is much more likely that a student will seek help when struggling. The obvious source of help is to see the instructor. Other free sources of available help can be found online. Some community colleges are now offering free tutoring help for students. Check with your professor to see if help is available.

Finding chemistry answers without first understanding the question will not help students be successful in chemistry class. Many students decide they do not need to purchase the required textbook for the course and their attempts to pass the class prove to be unsuccessful. Purchasing the textbook is only the first step. The next step is to read and study it. Even after doing this, many student find that they still need help.

There are three sources of free online help that are effective in helping students find and understand the answers to challenging problems in chemistry. These sites allow students to ask a question and receive a detailed answer that will also help understand the question better.

The first site is called Wiki Answers. This site provides reliable answers, but they are usually brief. Many times questions do not get answered. The next site is called All Experts. This is a high quality site that provides answers from individuals who must prove that they have a background in the field they are tutoring in order to become a tutor on the site. The answers are very detailed. The one drawback to using this site is that receiving answers may take awhile.

The third site is called Yahoo Answers. At this site students will receive a number of answers to questions asked usually within minutes after posting the question. Top contributors have a badge to distinguish them which also shows the percentage of right answers they have obtained. Another effective feature this site offers is a search option. Students that do not receive answers for questions posted can often use this feature to find the answer they are looking for. There is also an advanced search for students who would like to study questions and answers in a certain category.

These online sources can be an excellent way for students to improve their understanding in chemistry. Using these resources when doing homework, and reviewing tests taken will greatly improve overall performance and make the class much more enjoyable.

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Comments 33 comments

eonsaway profile image

eonsaway 6 years ago from New Mexico, USA

Did not know you could get chemistry answers from Yahoo answers, I used it when first learning how to use computer. The computer is still kind-of new to me and I find it amazing how much information is out there at our fingertips a click away.


ScienceFairLady profile image

ScienceFairLady 6 years ago

Steve you 3 points are very on top of things, but are there not kids who just don't get chemistry no matter how hard they work at it? I would think that those children need some one-on-one tutoring. Perhaps peer tutoring from those students who do well in this subject.

Every month we put up 100s of chemistry ideas for science fair projects and other categories of science so that kids can learn from others their age. http://www.super-science-fair-projects.com/ideas-f...


bearclawmedia profile image

bearclawmedia 6 years ago from Mining Planet Earth

Good hub mate! I must admit when I finally made it to university at age 44 I did not want to part with the big bucks for books either. But i did and I shut up and I was glad in the end. The net is almost anti academic. Not really but you get the jist of it. Bearclaw


Ted 6 years ago

I want to calculate a gas pressure using Raoult's law. I have no trouble with the calculation, however, I am measuring this pressure in a 6 volume box. My Raoult's calculations are not matching my vapor readings. I think it is because I have not included the volume of the box. Does anyone know how I can incorperate the volume into Raoult's law? How do I go about including the volume in this calculation?


ramzan14 6 years ago

I feel that my results have been very accurate, and i am very pleased that my predictions have all been proved correct. This shows all the relative understandings of theories such as the collision theory. So as said before, the higher the concentration the faster the rate of reaction. This is shown when using 4moles (the highest concentration i chose to use) which had the fastest reaction rate.


alpha 5 years ago

in titration of H2b as polyprotic acid at the first eq.point the PH is

H2b H+ + HB

HB H+ + B-

PH = 1/2 (pka1 + pka2 )

justify ?


ghulam qadir 5 years ago

Good hub mate! I must admit when I finally made it to university at age 44 I did not want to part with the big bucks for books either. But i did and I shut up and I was glad in the end. The net is almost anti academic. Not really but you get the jist of it. Bearclaw


mudashir 5 years ago

what is diffusion


pinkecheema 5 years ago

which crystal is good conductor of heat and electricity


JOHN 5 years ago

PLS. HELP ME ON EXPLANATION OF REDOX REACTION


Eileen 5 years ago

Can somebody solve this for me balancing redox equations step by step for me please?

SO3(2-) + MnO4- + H = SO4(2-)=Mn+ H2O


stevemark122000 profile image

stevemark122000 5 years ago from Southern California Author

Eileen, you have H for Hydrogen in the equation, don't you mean H+ ? Hydrogen is a diatomic molecule in nature. A single hydrogen atom occurs in an ionic solution and is written as H+.

Try to solve this problem again using the half reaction method.

1) Balance non-hydrogen, non oxygen atoms

2) Balance Oxygen with H2O

3) Balance Hydrogens with H+

4) Balance charges


Maddy 5 years ago

This isn't really a comment, but I'm hoping Steve, or another kind soul, could help me. I'm wondering if sodium bicarbonate mixed with water can ever be an acidic solution? I have acid erosion damage to my teeth and use a bicarb mouth rinse (half tspn or so in glass of water). My dentist told me to stop doing this, claiming “Sodium bicarbonate is an amphoteric substance with both acidic and basic (alkaline) properties. The correct concentration in a solution is important in order to reduce any likelihood of acidity". Is it possible that mixing bicarb with water can ever be acidic? If so, how would it occur as I have to be careful not to cause further acid damage by using an acidic rinse! Thanks so much for any help.


stevemark122000 profile image

stevemark122000 5 years ago from Southern California Author

Maddy, here is the reaction that takes place when

sodium bicarbonate mixed with water. Na does not affect the pH.

HCO?3 + H2O ? H2CO3 + OH

As you can see bicarbonate is the conjugate base of the weak acid H2CO3. Therefore the Hydroxide ion makes it slightly basic. It's pH is 8.2


new@chem1 5 years ago

What is the empirical and molecular formulas of epinephrine which is 59.0% carbon, 7.1 % hydrogen, 26.2 % oxygen, and 7.7 % nitrogen by mass (MW is 180 amu).


Sharleen 5 years ago

what are the loss/gain of electrons in hydrogen?


Maddy 5 years ago

Thanks so much for your help Steve - I lost internet connection for a couple of days and was so happy to find your response! Thanks for sharing your knowledge with all :)


Nicole 5 years ago

When we trace the development of atomic theory, we can see how the early form of an idea is modified rather than thrown out by later discoveries. Do you recognize parallels to this modification of basic ideas in other kinds of human experience? Explain please coz i have no idea what's that ahah! thank you so much!


eni 5 years ago

2 moles of ethannoic acid CH3COOH were mixed with 3 moles of ethanol and the mixture allowed to reach equilibrum at equilibrum 0.5 moles of ethanoic acid remain calculate the Kc


stevemark122000 profile image

stevemark122000 5 years ago from Southern California Author

New@chem1

Assume a 100g sample:

So you have 59.0 g C, 7.1g H, 26.2g O and 7.7g N

convert all of these to moles

Next take the lowest mole value, d'ivoire it into each of the other values to get the ratios. those are your empirical formula numbers. If they are not whole numbers multiply them by the lowest number that will make them all whole.

Next add up empirical formula to get molar mass and divide into molar mass of molecular formula. Use the resulting number to multiply the values in the empirical formula to get the molecular formula.


shafnaz usman 5 years ago

i want some answers of some questions in chemistry


TANIYA 5 years ago

CON YOU HELP ME TO SOLVE THE PROBLEMS Q.1 ARRANGE THE FOLLOWING IN DECREASING ORDER OF ACIDITY OF THH H INDICATES IN SMALL LETTERS (i)CH3COCh3 ,(ii) CH3COCh2COCH3 ,(iii) CH3OOCCh2COOCH3, (iv) CH3COCh2NO2


ashish john 5 years ago

why methyl iodide is more reactive than methyl chloride


asma 5 years ago

Two moles of oxygen and one mole of nitrogen are contained in a cylinder with a volume of 10.0L at 298K. What is the total pressure? What is the partial pressure of oxygen?


monique williams 5 years ago

this is for my chemistry lab could a brainiac help me i need these the most ethical answers as possible i know the answers just need a little more oomph

1)what happens to fused calcium chloride when added to water( what is given off and so on)

2)what happens to iron nails placed in copper 2 sulphate (mention displacement if you can)

3)what happens when mercury nitrate is added to potassium IODIDE?


jamil 4 years ago

if any one can plz provide me the list of application of mmr spectroscopy in the field of inorganic chemisty . thnx it s really urgent i am gona take my exams i need this material to know before sitting in exam


djhannyb 4 years ago

I need DESPERATE help ! How would I find:

1-(H+) = 26.2 ?

2-(OH-)= 62.8

3-(OH-)= 7.3X10^-12


4 years ago

i have this question about chemistry for my quiz:

how to dissolve more sugar in saturated solution?


stevemark122000 profile image

stevemark122000 4 years ago from Southern California Author

m, have you thought about why a solution saturates at a certain point? if you understand this, you will also understand what will happen if you raise the temperature.


Julia 4 years ago

Predict the products of the following reactions and balance them...

a)Lithium bromide + cobalt II sulfite=

b)Butane (C4H10)+ oxygen =

c)Magnesium nitrate + silver =

I am sooo confused here!!!


jammy khan 3 years ago

what's is beckmann rearrangement


tanya 3 years ago

. pH of a mixture of 1M HA (weak acid , pKa=4.2) and 1m NaA is 4.5 . What volume of weak acid is required to prepare a 300 ml buffer solution ?


biruk 2 years ago

please help me find the name and formula of the seventh member of alkenes

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