11/02/17

What should the body of a research paper draft contain?
?What should the body of a research paper draft contain?the thesis statement a description of each main ideaa summary of the key pointsa broad overview of the topic
Follows • 2
Expert Answers •1

11/02/17

are the terpenes alpha-pinene and alpha-terpinene the same?
I am studying aromatherapy and have been looking at the chemistry of essential oils.  In particular I have come across alpha -pinene and alpha-terpinene.  Are these two compounds the same or... more
Follows • 2
Expert Answers •1

11/02/17

stoichiometry
What mass of water can be formed by igniting 27.5 g of hydrogen gas and 175 g of oxygen gas?
Follows • 2
Expert Answers •1

11/01/17

Refractive Index - ORGANIC CHEMISTRY LAB
A student attempts to separate a sample of cyclohexane and ethylbenzene by distillation. After the distillation the student obtains an n 20D of 1.4355 for what should be pure cyclohexane with a... more
Follows • 2
Expert Answers •1

11/01/17

chemical formula created when radium (88) bonds with phosphorus (15).
i need the answer for this 
Follows • 2
Expert Answers •1

11/01/17

Precent Yield with Limited reactant
For the following reaction, 6.15 grams of water are mixed with 11.3 grams of carbon monoxide. What is the theoretical yield of carbon dioxide? CO + H2O -> CO2 + H2   Theoretical yield of... more
Follows • 2
Expert Answers •1

11/01/17

Are all particles in a material in a constant, random motion
Is it true or not????
Follows • 2
Expert Answers •1

11/01/17

I need help writing an equation
A student  wants to dilute 35 liters of a 35% salt solution to a 16% solution. How many liters of distilled water does the student need to add to the 35% salt solution to obtain the  16% salt... more
Follows • 2
Expert Answers •1

11/01/17

How do you calculate the mass of one mole of water
Calculate the mass of one mole of water.   Given that the density of water is 1 g/mL, how many mL is that.    I need help. I don't understand.
Follows • 2
Expert Answers •1

11/01/17

3-3*6= -15 can someone explain why the - symbol seems to be used twice?
3-3*6= -15 I understand how to solve the problem but i don't understand why the - symbol seems to be double clutched? first used to turn the 3 (in 3*6) into negative 3 and then used again to... more
Follows • 2
Expert Answers •1

11/01/17

If you were converting 42 grams into kilograms which fraction would you use as a converting factor
Dimensional analysis
Follows • 2
Expert Answers •1

11/01/17

How much work is done using a 120-watt light bulb for one hour?
 please someone help me I do online school and my teachers wont help
Follows • 2
Expert Answers •1

11/01/17

Is there such thing as a one way valve that can move pressurised air from one cylinder to another?
I just need the name of the part if it exists or a link would be appreciated 
Follows • 2
Expert Answers •1

11/01/17

what chemical in vampire bat bite cause the numbness?
one chemical cause the blood not to clog, another cause the numbness so the host does detect the bite
Follows • 2
Expert Answers •1

11/01/17

Is there a relation between Keq and ph?
Hello,I have an exam next week and the question above came up in previous years. I know if (ph) gets higher (Kb) gets higher too, but for (Ka) it gets lower.A teacher told that the higher the keq... more
Follows • 2
Expert Answers •1

10/31/17

Tea contains about 3% caffeine by mass. Assuming each tea bag contained 2.25 g of tea, did you recover the expected amount of caffeine from two tea bags?
So what is the expected amount of caffeine? Is it 0.0675g or is it 0.135g?  In lab, I recovered 0.018g of caffeine
Follows • 3
Expert Answers •2

10/31/17

Proportions for chemistry problem.
A manufacturing company wants to get rid of 500,000 kg of copper (II) sulfate, and 500,000 kg of copper (II) chloride. If I know that for every 7.86 grams of CuSO4 I can get 2 grams of pure copper,... more
Follows • 2
Expert Answers •1

10/31/17

A jewelry designer works with two types of precious metals, which are 34% and 62% gold. How much of the 62% gold should be added to 7.5 grams of the 34% gold.
So that the mixture contains 50% gold? 
Follows • 2
Expert Answers •1

10/31/17

How many kilograms of each alloy should the metalworker combine to create 100 kg of a 55​% copper​ alloy?
A metalworker has a metal alloy that is 15% copper and another alloy that is 65% copper.
Follows • 2
Expert Answers •1

10/31/17

36.0 mol of P4O10 contains how many moles of P?
I need help solving
Follows • 2
Expert Answers •1

10/31/17

Explain the definitions of acid and base of ① - ③ , respectively.
Explain the definitions of acid and base of ① - ③ , respectively. ① Arrhenius acid and base ② Brønsted — Lowry acid and base ③ Lewis acid and base Select acids and bases from substances (1) -... more
Follows • 2
Expert Answers •1

10/31/17

Mass-mole relationship
Iron reacts with H2 SO4 according to the equation:Fe + H2 SO4.                             FeSO4  + H2 Calculate the mass of FeSO4 that would be produced by 0.5mol of Fe(H=1,S=32,Fe=56)
Follows • 2
Expert Answers •1

10/30/17

1.5 gas occupies volume 500 millimeter at pressure?0. 5atm and temperature 0°C. Calculate the mollar mass of this gas.
Sir please solve for me this question as soon as possible im having confusion in this  
Follows • 2
Expert Answers •1

10/30/17

How many moles of CO2 are emitted into the atmosphere when 26.6 g C8H18 is burned? 2C8H18+25O2-->16CO2+18H2O
I need help solving this chemistry problem for my homework anything will help. Thank you
Follows • 2
Expert Answers •1

10/30/17

hydrogen chloride gas reacted with oxygen gas to yield water and chlorine gas. what is the mole ratio of the hydrogen chloride gas to oxygen?
Hydrogen chloride gas reacted with oxygen gas to yield water and chlorine gas. What is the mole ratio of hydrogen chloride gas to oxygen?
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.