Concept explainers
Interpretation:
The value of x in the molecular formula is to be calculated.
Concept introduction:
The ideal gas equation elaborates the physical properties of gases by relating the pressure, volume, temperature, and number of moles with each other with the help of four
Here,
The formula for conversion of temperature from degree Celsius to Kelvin is represented as
Answer to Problem 110AP
Solution:
Explanation of Solution
Given information:
Mass
Pressure
Temperature
Volume
The temperature is
The conversion of temperature from degree Celsius to Kelvin can be done by using the formula given below:
The number of moles for
The equation for an ideal gas is as follows:
Rearrange the above equation for number of moles as follows:
Substitute
Calculate the mass of water as follows:
Substitute
The mass of thesample is thesum of mass of
Rearrange the above equation for
Substitute
Calculate the moles of
Substitute
Now, the mole ratio of
As the mole ratio of
So, the molecular formula of the compound is
The value of x in the compound
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Chapter 10 Solutions
Chemistry
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- You have a gas, one of the three known phosphorus-fluorine compounds (PF3, PF3, and P2F4). To find out which, you have decided to measure its molar mass. (a) First, yon determine that the density of the gas is 5.60 g/L at a pressure of 0.971 atm and a temperature of 18.2 C. Calculate the molar mass and identify the compound. (b) To check the results from part (a), you decide to measure the molar mass based on the relative rales of effusion of the unknown gas and CO2. You find that CO2 effuses at a rate of 0.050 mol/min, whereas the unknown phosphorus fluoride effuses at a rate of 0.028 mol/min. Calculate the molar mass of the unknown gas based on these results.arrow_forwardA collapsed balloon is filled with He to a volume of 12.5 L at a pressure of 1.00 atm. Oxygen, O2, is then added so that the final volume of the balloon is 26 L with a total pressure of 1.00 atm. The temperature, which remains constant throughout, is 21.5 C. (a) What mass of He does the balloon contain? (b) What is the final partial pressure of He in the balloon? (c) What is the partial pressure of O2 in the balloon? (d) What is the mole fraction of each gas?arrow_forwardYou have two pressure-proof steel cylinders of equal volume, one containing 1.0 kg of CO and the other containing 1.0 kg of acetylene, C2H2. (a) In which cylinder is the pressure greater at 25 C? (b) Which cylinder contains the greater number of molecules?arrow_forward
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