What mass of no2 is contained in a 13.0 l tank at 4.58 atm and 385 k? ?

The mass of NO2 contained in a 13.0 L tank at 4.58 atm and 385 K is 86.5g.

HOW TO CALCULATE MASS:

The mass of a substance can be calculated by multiplying the number of moles by its molar mass. However, the number of moles will be calculated by using the formula as follows:

PV = nRT

Where;

P = pressure (atm)V = volume (L)R = gas law constant (0.0821 atm•L/mol•K)n = no. of moles (mol)T = temperature (K)According to this question, V = 13L, T = 385K, n = ?, P = 4.58 ATMn = PV ÷ RTn = (4.58 × 13) ÷ (0.0821 × 385)n = 59.54 ÷ 31.61n = 1.88molMolar mass of NO2 = 14 + 16(2

= 46g/mol

Mass of NO2 = 1.88 × 46Mass of NO2 = 86.5gTherefore, the mass of NO2 contained in a 13.0 L tank at 4.58 atm and 385 K is 86.5g.

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