I have asked these three questions before, but got the wronganswer. Please only answer if you know the correct answer.
→ Question 9 Retaken 0 / 1 point What is the molar mass of a gas if 1.77 grams of the gas in a 0.509 L flask at 286 K has a pressure of 1.149 atm? Use R = 0.08206 Latm/molk Report your answer to three significant figures. Answer: → Question 10 Retaken 0/1 point A mixture of gas contain 7.00 g of element A and 7.00 g of element B. Element A has a molar mass of 40.1 g/mol. Element B has a molar mass of 51.1 g/mol. What is the mole fraction of element A? Answer: → Question 11 Retaken 0/1 point Three gases are mixed into one container. The partial pressure of gas A is 840.1 mmHg. The partial pressure of gas B is 0.89 atm. The partial pressure of gas C is 3.08 atm. What is the total pressure of the gases in the container in atm? Watch your units and round your answer to the hundredths place. Answer:
I have asked these three questions before, but got the wrong answer. Please only answer if you know the correct answer.
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