8) Methanol, CH3OH, is derived from natural gas and is blended with gasoline to make 8)...
what is the predicted product from the following combination reaction? E) none of the above 33) Which of the following produces the characteristic color of a fireworks display? A) atoms exploding B) molecules exploding C) electrons dropping to lower energy levels D) nuclei dropping to lower energy levels E) none of the above Chapter 8 34) How many atoms of cobalt equal a mass of 58.93 g? (Refer to the Periodic Table.) A) 1 B) 27 C) 58.93 D) 59...
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....
5–9 pleae show work 5. A gas sample at 1.0 atm and 25°C is heated at constant pressure until its volume is doubled. What is the final temperature of the gas? a. 298°C b. 323°C c. 596°C d. 50°C e. None of the above 6. The bond order of C-O bond in Co, is b. 1.33 c. 1.5 d. 2.0 e. None of the above 7. The electron configuration of copper ion (Cu) is a. [Ar] 4s 3d b. [Ar]...
If the density of an unknown gas is 1.95 g/L at STP what is the molar mass of the gas? (R = 0.0821 atmL/molek) A) 11.4 g/mol B) 22.4 g/mol C) 23.8 g/mol D) 43.7 g/mol E) 139 g/mol
The density of a gas is 0.803 g/L at STP. What is its molar mass? PICK ONE A 22.4 g/mol B 27.9 g/mol C 18.0 g/mol D 24.1 g/mol E 26.7 g/mol
The density of a gas is 1.25 g/L at STP. What is its molar mass? A) 22.4 g/mol B) 17.9 g/mol C) 28.0 g/mol D) 37.6 g/mol E) 41.6 g/mol please show work
9. Certain race cars use methanol (CH3OH; also called wood alcohol) as a fuel. Methanol has a molecular mass of 32.0 g/mol and a density of 0.79 g/mL. The combustion of methanol occurs according to the following equation: 2CH3OH + 3O2 ? 2CO2 + 4H2O In a particular reaction 2.00 L of methanol are reacted with 80.0 kg of oxygen. a. What is the limiting reactant? b. What reactant and how many grams of it are left over? c. How...
The hydrogen gas needed to make ammonia, hydrogen chloride gas, and methanol can be obtained from small hydrocarbons such as methane or propane through the steam-reforming process, conducted at 41 atm and 760-980 °C. If 2.7 × 107 L of C3H8(g) at 810 °C and 8.0 atm react in the first step of the process, shown below, what is the maximum volume in liters of CO(g) at STP that can form? C3H8 + 3H2O → 3CO + 7H2 3CO +...
An environmental engineer is sampling the stack gas produced by a coal-burning power plant. The stack gas (a mixture of carbon dioxide, sulfur dioxide, and water) is pumped into a 20.0 liter cylinder at a pressure of 1.20 atm, and a temperature of 325 K. It is determined that the sample contains 0.315 mol of C02 and 0.494 mol of H20 a) How many moles of sulfur dioxide were present in the sample? b) What is the partial pressure (in...
18. Find the temperature of the neon gas that has volume 12.30 L at 1.95atm and contains 0.654 mol? A) 447 K B ).850C173 C) 273.15 K D) a or b. 19. Find the molar mass of a gas that occupies 22.414 Lat STP and has a mass of 30.6 g? A) 30.6 g mol? B) 60.6 g mol-2 C) 90.6 g mol-1 D) All of the above is wrong. 20. Find the pressure of a gas has a constant...