A 30.0 L tank contains 0.245 kg of helium at 25.0 degree C. The molar mass of he

Question

A 30.0 L tank contains 0.245 kg of helium at 25.0 degree C. The molar mass of helium is 4.00 g/mol. You may want to review (pages 535 - 590). For related problem solving tips and strategies, you may want to view a Video Tutor Solution of Volume of an ideal gas at stp. How many moles of helium are in the tank? Express your answer using three significant figures. What is the pressure in the t3nk (in pascals)? Express your answer using three significant figures. What is the pressure in the t3nk (in atmospheres)? Express your answer using three significant figures.

Explanation / Answer

A) no of mil (n) = 245/4 = 61.25 mol

b) pv = nRT => p = 61.25*8.3*298/30*10^-3

= 5049858.33pa

c) p = 5049858/101325= 49.8 atm

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.