1.Calculate the number of molecules in 0.750 mol of methane, CH4. 2. Calculate the number of...

1.Calculate the number of molecules in 0.750 mol of methane, CH4.

2. Calculate the number of moles in 15.0 g of oxygen gas, O2.

3. Calculate the mass of 115 molecules of carbon dioxide

4. Calculate the number of molecules in 2.25 g of sulfur hexafluoride.

5. Calculate the number of carbon atoms in 1.50 g of butane, C4H10.

6. Calculate the mass of calcium chloride that contains 3.20 × 1024 atoms of chlorine.

7. Calculate the number of water molecules formed by the complete combustion of 7.21 g of ethane, C2H6

Expert Solution

queen_honey_blossom answered 2 years ago

A mixture of 0.750 mol H2 and 0.750 mol I2 was placed in a 1.00 L...

A mixture of 0.750 mol H2 and 0.750 mol I2 was placed in a 1.00 L flask at 430°C. The equilibrium constant Kc for the reaction is 54.3 at this temperature. Calculate the concentration of H2, I2, and HI at equilibrium. H2 + I2 ⇌ 2 HI

CH4 + O2-----CO2 +2H2O suppose 2.8 mol methane is allowed to react with 3 mol of...

CH4 + O2-----CO2 +2H2O suppose 2.8 mol methane is allowed to react with 3 mol of oxygen A) what is the limiting reactant? B) how many moles of CO2 can be made from this mixture? How many grams of CO2?

Consider a 100 mol mixture that is 69.0% methane (CH4) and 31.0% ethane (C2H6). To this...

Consider a 100 mol mixture that is 69.0% methane (CH4) and 31.0% ethane (C2H6). To this mixture is added 20.0% excess air. Of the methane present, 90.40% reacts, 92.30% of which forms carbon dioxide (CO2), and the balance forms carbon monoxide (CO). Of the ethane present, 86.0% reacts, 92.30% of which forms carbon dioxide, and the balance forms carbon monoxide. a) What is the theoretical amount of oxygen required for the fuel mixture? b) What amount of air is added...

Suppose that 0.330 mol of methane, CH4(g), is reacted with 0.480 mol of fluorine, F2(g), forming...

Suppose that 0.330 mol of methane, CH4(g), is reacted with 0.480 mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released? Using data sheet below: Substance ΔH∘f (kJ/mol) C(g) 718.4 CF4(g) − 679.9 CH4(g) − 74.8 H(g) 217.94 HF(g) − 268.61

1. Calculate the number of molecules of oxygen in a 3.40 g of the gas 2....

1. Calculate the number of molecules of oxygen in a 3.40 g of the gas 2. Calculate the mass of 3.543 x 10^23 atoms of magnesium A. Balance the equation below then calculate the masses of carbon dioxide and water formed by burning 5.00 of methane in 5.00 g of oxygen: CH4(g) + O2(g) --> CO2(g) + H2O (l) b) This is a very important reaction. Why?

The formula for methane is CH4 and it’s molar mass is 16.04 grams/mol. (a) How many...

The formula for methane is CH4 and it’s molar mass is 16.04 grams/mol. (a) How many moles of methane are in 2.750 grams of methane? (b) How many molecules of methane are in a 11.5 mole sample?

- The molecules methane (CH4) and ammonia both have four regions of high electron desnity around...

- The molecules methane (CH4) and ammonia both have four regions of high electron desnity around their central atoms, and yet these two molecules have different molecular geometries. Why are their molecule geometries different? -Which of the following molecules is (are) polar? Which of the following is (are) non polar molecules that contain polar bonds? which contain nonpolar bonds?Carbon dioxide, carbon tetrafluoride, molecular chlorine, carbon monoxide, CH2O?

Use Avagadros number to calculate the number of molecules of H2S, the number of atoms of...

Use Avagadros number to calculate the number of molecules of H2S, the number of atoms of H, and the number of atoms of S, in 5.25 moles of H2S. Show all work and keep track of units and significant figures.

A mixture of 0.05263 mol of H2O, 0.01327 mol of CH4, 0.07198 mol of CO, and...

A mixture of 0.05263 mol of H2O, 0.01327 mol of CH4, 0.07198 mol of CO, and 0.06917 mol of H2 is placed in a 1.0-L steel pressure vessel at 1303 K. The following equilibrium is established: 1 H2O(g) + 1 CH4(g) 1 CO(g) + 3 H2(g) At equilibrium 0.009871 mol of CH4 is found in the reaction mixture. (a) Calculate the equilibrium partial pressures of H2O, CH4, CO, and H2. Peq(H2O) = . Peq(CH4) = . Peq(CO) = . Peq(H2)...

Methanol (CH3OH) is produced via the partial oxidization of methane (CH4). The fresh feed contains methane...

Methanol (CH3OH) is produced via the partial oxidization of methane (CH4). The fresh feed contains methane and oxygen that have been mixed in stoichiometric proportions. This feed is mixed with recycle gases. The single-pass conversion of methane is 10.0%. The stream leaving the reactor is passed into a separation process where the entire methanol, and none of the other materials, is removed. All of the remaining materials are recycled to be mixed with the fresh feed. Determine the feed rate...

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