4. Compute the approximate density of ethane, CH3CH3, at 27°C and 3.00 atm. The molecular weight...
3. An elemental analysis of an organic compound showed the following results: C = 82.66 %, H= 17.34 %. A 1.34 g of that compound was vaporized and was found to occupy 520 mL at -1 °C and 750 torr. What is the molecular weight and molecular formula of the compound? Compute the approximate density of ethane, CH3CH3, at 27°C and 3.00 atm. The molecular weight of ethane is 30.07. If the density of a gas is 1.7 g/L at...
3. An elemental analysis of an organic compound showed the following results: C = 82.66 %, H= 17.34 %. A 1.34 g of that compound was vaporized and was found to occupy 520 ml at -1 °C and 750 torr. What is the molecular weight and molecular formula of the compound? be 4. Compute the approximate density of ethane, CH3CH3, at 27°C and 3.00 atm. The molecular weight of ethane is 30.07.
5. If the density of a gas is 1.7 g/L at 27°C and 1.5 atm, what is its molecular mass?
5. If the density of a gas is 1.7 g/L at 27°C and 1.5 atm, what is its molecular mass? PMM = D RT
QUESTION 13 Compute the approximate density of methane, CH4, at 18 °C and 3.65 atm. The molar mass of methane is 160. A. 0.27 g/L B. 1.85 g/L C. 0.41 g/L D.2.44 g/L E. 0.71 g/L
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....
A gas has density of 1.977 g dm-3 at STP. (a) What is its molecular mass? (b) What is its density at 77C and 0.95 atm pressure? (c) If the gas in an oxide and has the formula XO2, what is the atomic mass of X?
Calculate the density, in g/L, of SF6 gas at 27°C and 1.500 atm pressure. O 3.38 * 10 g/L 2.96 g/L 22.4 g/L 8.9 g/L 3.38 kg/L
Calculate the density, in g/L, of CO2 gas at 27°C and 0.50 atm pressure. 01. 1.12 g12 OII. 2.17 Kg/L O III. 0.89 g/L 1. 46.0 g/L V. 9.93 g/L QUESTION 11 Identify the compound with ionic bonds. O1.CH4 2. Li 3. PBr3 4. CsCI 5. SiO2
9. The density of air at 1.000 atm and 25 °C is 1.186 g/L. a) b) Calculate the average molecular mass of air. From this value, and assuming that air contains only molecular nitrogen and molecular oxygen gases, calculate the mass % of N2 and O2 in air.