Homework Help: Chemistry

Posted by a Canadian on Sunday, February 24, 2013 at 6:06pm.

Mg + 2HCl -> MgCl2 + H2
Over an interval of 1.00s, the mass of Mg changes by -0.011g

What is the corresponding rate of consumption of HCl (in mol/s)?

I got 9.0E-4 mol/s and that's the right answer. But I'm having problems with the next question.

Calculate the corresponding rate of production of H2 in L/s at 20°C and 101 kPa. Tip: 1.00 mol of any gas occupies a volume of 24.0 L at 20°C and 101 kPa.

What I have so far:
delta[H2]/(delta)t =

i.e. I have no idea what to do here...

Chemistry - bobpursley, Sunday, February 24, 2013 at 6:38pm
for each mole of Mg consumed, the rate of H2 is the same. That will be in moles/sec

to change that to volume, use

V=n*24 where n is in moles/sec, so volume will be in liters/sec

Answer this Question

Related Questions

chemistry - Over an interval of 1second (s) the mass of Mg(s), in the reaction ...
Chemistry - Can someone tell me if I have this correct, I am leaving something ...
Chemistry - How many mole of H2 will be produced if 0.500 grams of magnesium is ...
Ap chem question 2 related to the first question - Calculate the volume of gas ...
Chemistry - Mg+ 2HCl-->MgCl2+H2 The mass of the HCl is 24.852 g mass of ...
Honors Chemistry - On the same subject as before with the limiting/excess ...
Chemistry - If I begin with 2.5g of Mg and excess HCL. How many liters of H2 gas...
Chemistry - Mg + 2HCl -> MgCl2 +H2 delta H = ? MgO + 2HCl (aq) -> ...
chemistry - Equation- Mg + 2HCl -> MgCl2 + H2 What volume of hydrogen at ...
chemistry - in the equation mg+2hcl-->mgcl2+h2, what mass of the hcl is ...

For Further Reading

First Name:
School Subject:
Answer: