Mass of flask, stopper, and 5mL of water (g) 102.945 g Mass of flask, stopper, and filled with...

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Chemistry

Mass of flask, stopper, and 5mL of water (g) 102.945 g
Mass of flask, stopper, and filled with water (g) 238.389 g
Volume of gas space in flask (the difference between the abovetwo measurements covnerted to mL) (L) .135444 L
Mg(s) + HCl(aq) Reaction
Trail 1 Trial 2
Mass of Mg(g) 0.008 0.007
Initial Pressure (atm) 0.9974 0.9945
Max Pressure (atm) 0.9980 0.007
Pressure Change (atm) 0.0006 0.0471
Temp (K) 295.7 296.1
a. Calculate the moles of H2 produced from each trial
b. Vol of gas was not at standard temp and pressure. Convert thevolume at the pressure and temperature of the experiment to avolume at standard temperature and pressure. (STP = 273. 15K, P =1.00atm)
c. Using your answers from part a and b, calculate the molarvolume of H2(g) (L/mol) at STP for each trial.
(For what ever reason, I am only able to put in a goodvalue for mols of H2 into the computer, it keeps saying mycalculations are incorrect for the rest. Trying to figure out whatI am doing wrong)

Mg(s) + HCl(aq) Reaction
	Trail 1	Trial 2
Mass of Mg(g)	0.008	0.007
Initial Pressure (atm)	0.9974	0.9945
Max Pressure (atm)	0.9980	0.007
Pressure Change (atm)	0.0006	0.0471
Temp (K)	295.7	296.1

Answer & Explanation Solved by verified expert

4.0 Ratings (531 Votes)

Mgs HClaq Reaction 2Mg 2HCl MgCl2 H2 PV n RT Here P 00471atm V 0135444 L T 2957 K n PV RT 000060135444 008206 2957 335106 Moles Trail 2 2Mg 2HCl MgCl2 H2 See Answer

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Mass of flask, stopper, and 5mL of water (g)	102.945	g
Mass of flask, stopper, and filled with water (g)	238.389	g
Volume of gas space in flask (the difference between the abovetwo measurements covnerted to mL) (L)	.135444	L