How many grams of oxygenĬan someone please check these problems? 34. mol), and the molar mass of oxygen gas is 32 g/mol.What must be the pressure of the gas (in mmHg )?Ī sample of oxygen gas (O2) applies 152 mmHg pressure on the walls of an 11.2 L steel container at 273 K. What is the pressure (in mmHg) of the gas inside the apparatus below if the atmospheric pressure is Patm=748 mmHg, h1=40 mmHg, and h2=67 mmHg?Ī sample of N20 gas has a density of 2.65 g/L at 298 K. If 429 grams of gas occupies 25.6L at 49 degrees C at a pressure of 759 mmHg what volume will 4.29g of gas will occupy at 53 degrees C (assume pressure is unchanged) The levels of water inside and outside the gas collecting tube is identical. The gas was collected over water at 21.0 degrees Celsius. When the pressure equals 8 millimeters of mercury (mmHg), what is the volume, in milliliters (mL)?Ī 0.0677g sample of magnesium metal reacted with excess hydrochloric acid to produce 69.9 ml of hydrogen gas. This graph represents the relationship of the pressure and volume of a given mass of a gas at constant temperature. If the temperature and amount of gas remains constant, what volume will the gas sample occupy at a pressure of 120 kPa What is the final volume of the gas, in milliliters, when the pressure and temp of the gas is changed to A.) 658 mmHg and 281K? B.) 0.55 atm and 75Ī gas sample has a volume of 150ml when the pressure is 175kPa. 975 atm V= 2.50 L n=ġ30cm of a gas at 20°c exerts a pressure of 750 mmhg.calculate the pressure if its volume is 150cm^3 at 35°cĪ sample of argon gas has a volume of 735 mL at a pressure of 1.20 atm and a temp of 112 degrees Celsius. What was the temperature of the propane in the flask. After the sample was collected, the gas pressure was found to be 741 mmHg.
what mass of nitrogen is present in the sample?Ī 2.50 L flask was used to collect a 5.65 g sample of propane gas, C3H8. The total pressure of the sample is 725mmHg and the partial pressure of argon is 231 mmHg. the table below shows the initial temperature, pressure, and volume of theĪ 255mL gas sample contains argon and nitrogen at a temperature of 65 degrees celsius. the volume of the gas sample is changed when both the temperature and the pressure of the sample are increased. Not sure of formula for thisĪ sample of helium gas is in a closed system with a movable piston. What is the pressure of the nitrogen gas if the atmospheric pressure is 744 mmHg? Answer in units of mmHg. if the pressure is changed to 0.155 atm calculate the new volumeĪ sample of nitrogen gas is collected overwater at a temperature of 23◦C. The volume of #"O"_2# produced is #"2.18 L"#.A sample of gas has the pressure of 1120 mmhg and volume of 2.00 L. #"grams of KClO"_3 stackrelcolor(blue)("molar mass"color(white)(ml)) (→) "moles of KClO"_3 stackrelcolor(blue)("molar ratio"color(white)(ml))→ "moles of O"_2 stackrelcolor(blue)("Ideal Gas Law"color(white)(ml))(→) "volume of O"_2# (e) Use the Ideal Gas Law to convert moles of #"O"_2# to volume of #"O"_2#. (b) Use the molar ratio (from the balanced equation) to convert moles of #"KClO"_3# to moles of #"O"_2#. (a) Use the molar mass to convert the mass of #"KClO"_3# to moles of #"KClO"_3#.
The problem is to convert grams of #"KClO"_3# to moles of #"O"_2# and volume of #"O"_2#.