Pr nr In the previous example for nitrogen: -moles ofN, n total moles mole fract

Question

Pr nr In the previous example for nitrogen: -moles ofN, n total moles mole fraction of N, fraction due to Nressure N, fraction due to N 4-pressure NL Pr total pressure The ratio of the pressures is the same as the ratio of the moles of gas A to the total number of moles. This ratio (na/n)ls called the mole fraction of the gas A, and given the symbol Xa Another equation is: The mole fraction of all the gas components must equal to 1 he mole fraction of oxygen in air is 0.209. Assuming nitrogen is the only other constituent, what are the partial pressures of oxygen and nitrogen when the barometer reads 755 ton PToreh 2. Calculate the partial in a 15.0 L container at 298 K pressure of 2 25 moles of oxygen that have been mixed (no reaction) with 1.75 moles of nitrogen 25.0 L gas cylinder at 32 "C is filled with 2.33 moles of carbon dioxide and 4.66 moles of nitrogen. Calculate the total pressure and the mole fractions and partial pressure of carbon dioxide and nitrogen in the oylinder. 4. Mixtures of helium and oxygen are used in scuba diving tanks to help prevent "the bends", a condition caused by with a volume of 8.0 L, what °C? es forming in the bloodstream. If 95 L of oxygen and 25 L of helium at STP are pumped into a scuba tank is the partial pressure of each gas in the tank and what is the total pressure in the tank at 25 5. A gaseous compound containing hydrogen and carbon is decomposed and found toc 17.34% hydrogen by What is the molecular formula of the compound? tain 82.66% carbon and mass. The mass of 158 ml of the gas, measured at 556 mm Hg and 25 °C, is found to be 0.274 g 6. The reaction between nitric oxide, NO, and equation for this reaction. Suppose that the two oxygen gas to form nitrogen dioxide is very important. Write the balanced reactant gases are initially kept in separate containers with the initial conditions stated below. Assume the temperature is 25 °C. REVIEW LR problem. an. When they are allowed to mix and react to completion, which gases b. How many moles of each gas are there at the end of the reaction? c. What are the partial pressures of each gas and the total pressure of the system? d. If only 0.22 atm of nitrogen dioxide is formed, what is the percent NO (g) V 4.0L P=360 mm Hg V 20L P=0.996 atm 3 rs

Explanation / Answer

Q1

x-O2 = 0.209

Find the P-O2 and P-N2

according to dalton

Ptotal = P-O2 + P-N2

we an get

P-O2 = x-O2 * Ptotal = 0.209*755 = 157.795 torr

then

P-N2 = Ptotal - P-O2 = 755-157.795

P-N2 = 597.205 torr

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

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