christinamaraviglia1 christinamaraviglia1
  • 13-05-2021
  • Chemistry
contestada

How many moles of helium are needed to fill a balloon to a volume of 5.3 L at 22 ℃ and 632 mmHg?

Respuesta :

asuwafohjames
asuwafohjames asuwafohjames
  • 19-05-2021

Answer:

0.18 moles

Explanation:

Applying,

PV = nRT................... Equation 1

Where P = pressure, V = volume, n = number of moles, R = molar gas constant, T = temperature.

make n the subject of the equation

n = PV/RT............... Equation 2

Given: V = 5.3 L, T = 22 °C = (22+272) K = 295 K, P = 632 mmHg = (0.00131579×632) = 0.8316 atm,  R = 0.083 L.atm/K.mol

Substitute these values into equation 2

n = (0.8316×5.3)/(0.083×295)

n = 0.18 moles

Answer Link

Otras preguntas

Because the Crusades opened travel to the East and brought back new goods, Western Europe experienced a growth in A. Art B. Trade C. Religion
Determine whether the underlined word is a preposition or an adverb.
a machine can make a box in 1.3 seconds how many boxes can the machine make in a hour
How many people in the philipines
what is the word form for the number 89,208,900
The first American play of merit, written in 1852, was an adaptation by George L. Aiken of ______.
The Russian Empire was multi-ethnic with populations of which of the following? Slavic peoples Muslim Serbs Turkic Muslims Non-Slavic Europeans German migrants
find the slope of the line 2x 8y = 6
if the mass is 35g and the volume is 7mL what is thedenstiy in science
why are proteins,fats,carbs,minerals and vitamins important to the diet