the density of a gas was measure at 1.30 atm and 470c and found to be 1.95 g/L. Calculate the molar mass of the gas. This is a Ap question can anyone help .

The molar mass = 39.4 g/mol

Explanation:

The given parameters are;

The pressure at which the gas was measured = 1.3 atm.

The temperature of the gas = 47°C

The measured density of the gas = 1.95 g/L

By the combined gas equation, we have;

Where;

n = Number of moles  = m/MM

P = Pressure = 1.3 atm

V = Specific, Molar Volume

T = Temperature = 47 °C = 320.15 K

R = Universal Gas Constant = 0.08205 L·atm/(mol·K)

ρ = The density = MM/V

Where;

MM = Molar mass

Therefore, V = MM×ρ

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11

c) was interpreted by the supreme court in gibbons v. ogden.

i hope it is the answer and it will you..