if 429 grams of gas occupies 25.6L at 49 degrees C at a pressure of 759 mmHg what volume will 4.29g of gas will occupy at 53 degrees C (assume pressure is unchanged)

Answer 1

The long way.
PV = nRT
Solve for n, then n = g/molar mass. Solve for molar mass.
Redo PV = nRT, solve for V under the new conditions.

Easier way.
42.9 is 0.1 of the initial so at the same T and P, V = 0.1 x 25.6 or 2.56 L.
Then correct for the temperature difference.
2.56 x 326/322 = ??

Answer 2

lmk