At STP how many litres of hydrogen can be obtained from the reaction of 500cm...
CHEMISTRY
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At STP how many litres of hydrogen can be obtained from the reaction of 500cm3 ?of 0.5M H4SO4 ?excess zinc metals
- A) 22.4dm3
- B) 11.2dm3
- C) 65dm3
- D) 5.6dm3
Correct Answer: D) 5.6dm3
Explanation
First, let's write down the balanced chemical equation for the reaction between H\(_2\)SO\(_4\) and zinc (Zn):
\(H_2SO_4 + Zn \rightarrow ZnSO_4 + H_2\)
From the balanced equation, we can see that 1 mole of H\(_2\)SO\(_4\) reacts with 1 mole of zinc to produce 1 mole of hydrogen gas (H\(_2\)).
We are given that the volume of 0.5M H\(_2\)SO\(_4\) is 500 cm\(^3\). To find the number of moles of H\(_2\)SO\(_4\), we use the formula:
Moles = Molarity
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