Chapter 5, Problem 5.53PAE

Interpretation Introduction

Interpretation:

To find out how many grams of Zn should be reacted with excess of HCl to obtain this much gas.

Concept introduction:

The volume (V) which occupies by moles (n) for any gas which has the pressure (P) and temperature in kelvin (T). This was represented by the equation

$PV=nRT$

R is known as the ideal gas constant. This is stated as ideal gas law or equation of state.

Given:

$\begin{array}{l}\text{Calculate}\text{the}\text{moles}\text{of}{\text{H}}_{\text{2}}\text{required:}\\ \text{PV=nRT}\\ \text{P = pressure = 0}\text{.9842 atm}\\ \text{v = 0}\text{.400 litres}\\ \text{n = moles}\\ \text{R = 0}\text{.082057}\\ \text{T = 20}\text{.5+273 = 293}\text{.5}\end{array}$