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Prelab Stamp Here Mg(s) +2HCl(aq) --->MgCl2(aq)+H2(g) 2) A student performs this reaction in the laboratory, and...

Prelab Stamp Here

Mg(s) +2HCl(aq) --->MgCl2(aq)+H2(g)

2) A student performs this reaction in the laboratory, and collects the hydrogen gas over water. The student collects 215.8 mL of gas. The total pressure is 755.2 mm Hg and a temperature of 22.0 °C. a) What is the vapor pressure of water at 22.0 °C?

　

b) What is the partial pressure of hydrogen in the tube in mm Hg? in atm?

c) Use the ideal gas law to calculate how many moles of hydrogen were produced in the reaction.

d) How many moles of Mg reacted? (assume 100% yield)

e) What mass of Mg reacted?

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