Determine the amount of zinc metal

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Reference no: EM1317295

Calculate the mass of Sodium and Zinc in grams in the following equations using ideal gas law.

A piece of sodium metal reacts completely with water as follows:

2Na(s) + 2H2O(l) -----> 2NaOH(aq) + H2(g)

The hydrogen gas generated is collected over water at 25.0°C. The volume of the gas is 246 mL measured at 1.00 atm. Calculated the number of grams of sodium used in the reaction. (Vapour pressure of water at 25°C = 0.0313 atm)
A sample of Zinc metal reacts completely with an excess of hydrochloride acid:

Zn(s) + 2HCl(aq) ----> ZnCl2(aq) + H2(g)

The hydrogen gas produced is collected over water at 25°C using an arrangement similar to that shown in Figure 5.15. The volume of the gas in 7.80 L and the pressure is 0.980 atm. Calculate the amount of Zinc metal in grams consumed in the reaction. (Vapor pressure of water at 25°C - 23.8 mmHg)

Reference no: EM1317295

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