Homework Help: Chemistry

Posted by Lindt on Monday, March 18, 2013 at 3:19pm.

Question 9
Marks: 2
In the reaction:

Zn + 2 HCl ZnCl2 + H2

An excess of Zn is reacted with 300.0 g of HCl. How many grams of H2 will be produced?

Chemistry - DrBob222, Monday, March 18, 2013 at 3:31pm
You need to learn where the arrow keys are (and use them).
mols HCl = grams/molar mass
Convert mols HCl to mols H2 using the coefficients in the balanced equation. .
Convert mols H2 to g. g = mols x molar mass.

Answer this Question

Related Questions

chemistry - In the reaction:Zn+ 2HCL>ZnCl2+h2.What mass ZnCl2 is produced...
chemistry - In the reaction:Zn+ 2HCL>ZnCl2+h2.What mass ZnCl2 is produced...
ap chemistry please BOB HELP ME - Can you guys give me a clue in how to approach...
Chemistry - Zn + HCl --> ZnCl2 + H2 If 18 grams of Zn are used in the ...
Science - 1.8 mol Zn and 7.3 mol HCl react according to the equation Zn + 2 HCl...
Chem - Zinc reacts with HCl to produce ZnCl2 and Hydrogen gas, H2. What volume, ...
Chemistry check - I need to balance the following equation. I just want to make ...
chemistry please help! - How many molecules of hydrogen are produced if 13.05 g...
chemistry please help!!!!!!!!!!!!!!!!!!!!!! - How many molecules of hydrogen are...
chemistry - how many moles of HCl are needed to react with 2.3 moles of Zn in ...

For Further Reading

First Name:
School Subject:
Answer: