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Science Clinic => Chemistry => Topic started by: Zulu123 on Nov 18, 2019

Title: How many grams of zinc metal are required to produce 2.00 L of hydrogen gas at STP according to the ...
Post by: Zulu123 on Nov 18, 2019

Question 1

When 14.0 g of zinc metal reacts with excess HCl, how many litres of H2 gas are produced at STP?



◦ 0.208 L
◦ 0.416 L
◦ 9.60 L
◦ 4.86 L

Question 2

How many grams of zinc metal are required to produce 2.00 L of hydrogen gas at STP according to the chemical equation shown below?

Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)

◦ 0.171 g
◦ 131 g
◦ 5.76 g
◦ 11.7 g

Title: How many grams of zinc metal are required to produce 2.00 L of hydrogen gas at STP according to the ...
Post by: Kingjoffery on Nov 18, 2019

Answer 1

4.86 L

Answer 2

5.76 g