g A mixture of gasses comprised of oxygen, nitrogen, and hydrogen has a total pressure of 760 mm Hg. The pressure due to hydrogen was found to be 70 mm Hg and the pressure due to oxygen was 650 mm Hg. What was the partial pressure of nitrogen

40 mmHg

Explanation:

Dalton's Law of Partial Pressures, states that the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the individual gases in the mixture. Hence if I have gases A,B and C and I choose to designate the pressure of gas A as PA, the pressure of gas B as PB , the pressure of gas C as PC and the total pressure of all the gases together as PT. Then from Dalton's law; PT= PA + PB + PC

From the question; we designate the pressure of hydrogen as PA, pressure of nitrogen as PB and pressure of oxygen as PC.

PA= 70 mmHg

PB= the unknown

PC= 650 mmHg

If the total pressure of the gas mixture (PT) = 760 mmHg

Then;

760= 70 + PB + 650

PB= 760- (70+650)

PB= 760 - 720

PB= 40 mmHg

Therefore, the partial pressure of nitrogen is 40 mmHg

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)