Question

17 g of NH3 gas will occupy a volume of _____________ cm at NTP.

Answer 1

Answer:

The correct answer is 22400$cm^{3}$ .

Explanation:

• Air at 20°C (293.15 K, 68°F) and 1 atm are considered to be at normal pressure and temperature. NTP typically occurs at 20 °C and 1 atm of pressure.

Molar mass of $NH_{3}$ = 14 + (3 × 1)

Molar mass of $NH_{3}$= 14 + 3

Molar mass of $NH_{3}$ = 17 grams

• NH3 has a 17g molecular mass. Therefore, at N.T.P., the volume of 17g of NH3, or 1 mole NH3, will be 22.4L.
• So, the volume in $cm^{3}$ is 22400 $cm^{3}$ .

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