Question

Suppose the ideal volume for an airbag is 50.0L. Using the pressure of 765.0 mmHg and temp of 29.5C how many grams of Nan3 should be put in compartment

Answer 1

Answer:

130 gram of NaN₃should be put into the compartment

Explanation:

Given that Ideal volume for an airbag = 50 lit

Pressure = 765 mmHg

we know

                     $1 atm=760mmHg$

       ∴       $765mmHg =\frac{765}{760}atm$

Temperature (T) = 29.5°C = (29.5 + 273) = 302.5 K

We know A/c to ideal gas equation

                                     PV = nRT

                                        $n=\frac{PV}{RT}$

Where n= no. of mole

              R = universal gas constant = 0.0821 lit. atm. mol⁻¹K⁻¹

                             $n=\frac{\frac{765}{760} X50}{0.0821X302.5}=2 mole$

Mass of (NaN₃) = mole x molar mass = 2 x 65 = 130 gram