ANSWER ALL QUESTIONS 7-12 or don’t bother 7. If 25.0 mL of 1.50 M CuSO4 is...
i need help with the last four questions along with step by step he appropriate gas law to solve questions 1-6. Show work. (2 pts) A certain amount of a gas at a constant temperature has a pressure of 5.50 atm and a volume of 10.0 mL. If the volume is decreased to 125.0 mL, what is the resulting pressure of the gas? : 924 a4m 125 O P v (2 pts) If 0.722 L of a certain gas at...
Need help answering all questions;1,2,3,4,5, and 6 Homework Assignment 1. If 0.623 g of ethane gas (C.H.) is introduced into an evacuate 2.00 L container at 23deg C, what is the pressure in atm in the container? 2. A sample of phosgene (COCI) is collected in a flask with a volume of 247 ml at a pressure of 751 mmHg and a temperature of 21 deg C. The mass of gas is 1.00 g. What is the molar mass? 3....
Barometric Pressure 0.992 atm Mass of Flask + Foil 56 g Mass of Flask + Foil + Condensed Liquid 59 g Mass of Condensed Liquid 3 g Volume of Flask 300 ml Temperature of Water Bath when Vaporization Begins 333 K Temperature of Water Bath when Water Begins to Boil 363 K Molar Mass 46 g mol Ideal gas law PV=nRT P=pressure V=volume of gas n=number of moles R=gas constant T=temperature Molar volume V=RT/P Density of gas D=PM x RT Molar mass M=(mRT)/(PV) I...
Need help answering all questions; 7,8,9,10,11,12, and 13. Thanks 7. How many mole of nitrogen gas will occupy a 5.00 L container at STP? 8. A sample of hydrogen sulfide gas at 760 torr and 25 deg C in a 2.00 L container is allowed to expand into a 10.0 L container at 25 deg C, What is the pressure of the gas in 10.0 L container? 9. Calculate the volume of 2.00 g of sulfur dioxide at STP? 10....
step by step please EXPERIMENT 10 DATE y lonelisto TODPNAME SECTION OEM omdat POSTLABORATORY ASSIGNMENT 1. What is the density of xenon gas at standard conditions? 2. What is the volume that is occupied by 0.819 g of helium at standard conditions? Robin 3. Ozone, a component of smog, is a toxic substance that consists of only oxygen atoms. If ozone has a density of 2.1 g/L at standard conditions, then what is the chemical formula of ozone? Hint: Determine...
answer all questions on picture Nite Gas Laws Problem Set 1. According to Dalton's Law, what is the pressure of H, gas in a mixture with a total pressure of 1.5 atm if the hydrogen gas has a mole fraction of 0.5? (Ans: 0.75 atm) 2. In Charles Law the relationship between (P&T or V&T) is determined to be (inversely/directly) proportional. 3. Why must only SI units be used when making calculations using the Ideal Gas Equation? 4. What is...
A flask, at 25.0 oC, with a volume of 1.00 L is filled with an unknown gas to a pressure of 100.00 kPa. By weighing the flask before and after filling, it is found that the mass of the gas is 0.16 g. i. How many moles of gas are in the flask? ii. What is the molar mass of the gas?
10...11 P_1V_1/T_1 = P_2V_2/T_2 PV = nRT M = mRT/PV R = 0.08206 L middot atm/mol middot K A teaching assistant was determining the molar volume of nitrogen gas, N_2(g). (MW: 28.0131 g/mol). at standard temperature and pressure. The TA found that 146 mL of gas was collected at 21.0 degree C and 0.968 atm. The TA determined the volume of this gas sample at STP (1.00 atm and 273 K) is ____ mL. Your answer should be expressed with...
1. A 125mL Erlenmeyer flask has a measure volume of 152 mL. A 0.177 g sample of an unknown vapor occupies the flask at 97.8°C a pressure of 748 torr. Assume ideal gas behavior. a. How many moles of vapor are present? b. What is the molar mass of the vapor? 2. a) If the volume of the flask is mistakenly recorded as 125mL in Question 1, what is the reported molar mass of the vapor? b) What is the...
Constant R = 0.08206 L atm mol K 1. (1 pt) Convert 187.2 Torr to atmospheres. 2. (2 pts) Calculate the pressure of 1.64 mol of a perfect gas that occupies a volume of 21.4 L at room temperature (25°C). 3. (2 pts) What is the molar mass of a 28.0 g sample of a perfect gas that occupies a volume of 22.4 L at a pressure of 1.00 atm and at a temperature of 0°C? Name (print): Section No....