Since the mass of of the helium nucleus is approx. 4.00 amu
Answer:
76 mmHg
Explanation:
The partial pressure of a gas in an ideal gas mixture is the pressure that this gas would exercise if it was alone in the same temperature of the gas mixture.
For the Raoult's law, we can determinate the partial pressure of a gas(Pa) knowing the total pressure (P) and its molar fraction(Xa):
Pa = XaP, so for the oxygen :
Pa = 0.10x760
Pa = 76 mmHg
Answer:
A helium atom with no neutrons
<u>Answer:</u> The number of moles of nitrogen gas is 0.030 moles
<u>Explanation:</u>
To calculate the number of moles of nitrogen, we use the equation given by ideal gas which follows:

where,
P = pressure of the nitrogen gas = 2.96 atm
V = Volume of the gas = 0.25 L
T = Temperature of the gas = 300 K
R = Gas constant = 
n = number of moles of nitrogen gas = ?
Putting values in above equation, we get:

Hence, the number of moles of nitrogen gas is 0.030 moles