The molecular weight of butane is 58.14 g/mol. Based on the number of grams of gas...
The molecular weight of butane is 58.14 g/mol. Based on the number of grams of gas measured, how many moles is this? (moles = mass / molecular weight) Choose the closest answer. A. 5.5 * 10^-1 moles 0.361g
B. 8.1 * 10^-4 moles
C. 6.2 * 10^-3 moles
D. 9.4 * 10^-2 moles
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The molecular weight of butane is 58.14 g/mol. Based on the
number of grams of gas...
The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight...
The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of 58.1 grams in one mole. How many carbon atoms are in 2.00 g of butane? Express the number of atoms to three significant figures.
How many moles of benzaldehyde (density d = 1.04 g/ml), (molecular weight mw = 106.12 g/mol)...
How many moles of benzaldehyde (density d = 1.04 g/ml), (molecular weight mw = 106.12 g/mol) are required to react with 1.0 ml of acetone: (density d = 0.79 g/ml), (molecular weight mw = 58.08 g/mol)? 6. What is approximate theoretical yield for problem # 5 if you obtained 2.1 grams of dibenzylidene acetone (mw = 234.29 g/mol)?
C4H10(g)+O2(g)→CO2(g)+H2O(g). How many moles of butane gas, C4H10, react to produce 1.00 mol of water? How...
C4H10(g)+O2(g)→CO2(g)+H2O(g). How many moles of butane gas, C4H10, react to produce 1.00 mol of water? How many moles of oxygen gas react to produce 1.00 mol of water?
Butane gas is compressed and used as a liquid fuel in disposable cigarette lighters and lightweight...
Butane gas is compressed and used as a liquid fuel in disposable cigarette lighters and lightweight camping stoves. Suppose a lighter contains 3.87 mL of butane (d =0.579 g/mL). (a) How many grams of oxygen are needed to burn the butane completely? g 02 (b) How many moles of H2O form when all the butane burns? moles 10 (c) How many total molecules of gas form when the butane burns completely? * 10 (select) Ymolecules of gas (Enter your answer...
Be sure to answer all parts. Butane gas is compressed and used as a liquid fuel...
Be sure to answer all parts. Butane gas is compressed and used as a liquid fuel in disposable cigarette lighters and lightweight camping stoves. Suppose a lighter contains 5.10 mL of butane (d-0.579 g/mL). (a) How many grams of oxygen are needed to burn the butane completely? g 02 (b) How many moles of H2O form when all the butane burns?" moles H20 (c) How many total molecules of gas form when the butane burns completely? x 10 (rclect) molecules...
Calculate the mass of oestrogen (molecular mass 270 g/mol) required to make 150 mL of a...
Calculate the mass of oestrogen (molecular mass 270 g/mol) required to make 150 mL of a 5.5 mM solution. Select the appropriate units. HINT: First calculate amount (moles) based on the formula amount = c × V (you may have learned this formula as n = c × V; A = C × V) then convert moles to grams using g = mol x molecular mass
Given the data below, how many grams of NaCl would you expect to be formed in...
Given the data below, how many grams of NaCl would you expect to be formed in the reaction of excess HCl with the Na,CO3? The molar mass of sodium carbonate is 105.989 g/mol and the molar mass of sodium chloride is 58.443 g/mol. 83.000 mass of empty beaker (g) mass of beaker plus Na2CO3 (9) mass of Na2CO3 (9) 85.250 2.250 Select one: O a. 2.481 g O b. 3.308 g O c.4.962 g O d. 1.241 g You added...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) S...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) Substance Melecular weight am Molar mass (g) LiP MON ZASO, Nichek) nitrate Irell) phosphate For the following mole calculations use dimensional analysis, showing the canceling of the units, and retain in your answer the number of significant figures in the measurements that is initially given to you. 2) Convert the following mass values to moles or mole values to masses....
7. Sulfur trioxide has a molecular weight of 80.07 g/mol SO, What is the volume, in...
7. Sulfur trioxide has a molecular weight of 80.07 g/mol SO, What is the volume, in milliliters, of 0.28 grams of sulfur trioxide gas at STP? (4 points) 8. Consider the following balanced chemical reaction. 2 H2O2 (aq) → 2 H20 (1) + O2() How many liters of molecular oxygen gas are formed if 1.19 x 10 molecules of hydrogen peroxide (H2O) are allowed to decompose at STP? (4 points) Note: There are a total of 38 points possible on...
1. 5.00 g of butane are combusted in a sealed container containing 2.00 g of oxygen...
1. 5.00 g of butane are combusted in a sealed container containing 2.00 g of oxygen gas. The balanced reaction for the combustion of butane is shown below. How many grams of the excess reagent are left over? (This question first requires you to determine the limiting reagent, and then calculate how much will be leftover). Pease answer in g. Molar Mass Butane: 58.12 g/mol Molar Mass Oxygen Gas: 32.0 g/mol 2CH3CH2CH2CH3 + 13O2 --> 8CO2 + 10H2O 2. If...
Butane gas is compressed and used as a liquid fuel in disposable cigarette lighters and lightweight camping stoves. Suppose a lighter contains 3.87 mL of butane (d =0.579 g/mL). (a) How many grams of oxygen are needed to burn the butane completely? g 02 (b) How many moles of H2O form when all the butane burns? moles 10 (c) How many total molecules of gas form when the butane burns completely? * 10 (select) Ymolecules of gas (Enter your answer...
Be sure to answer all parts. Butane gas is compressed and used as a liquid fuel in disposable cigarette lighters and lightweight camping stoves. Suppose a lighter contains 5.10 mL of butane (d-0.579 g/mL). (a) How many grams of oxygen are needed to burn the butane completely? g 02 (b) How many moles of H2O form when all the butane burns?" moles H20 (c) How many total molecules of gas form when the butane burns completely? x 10 (rclect) molecules...
Given the data below, how many grams of NaCl would you expect to be formed in the reaction of excess HCl with the Na,CO3? The molar mass of sodium carbonate is 105.989 g/mol and the molar mass of sodium chloride is 58.443 g/mol. 83.000 mass of empty beaker (g) mass of beaker plus Na2CO3 (9) mass of Na2CO3 (9) 85.250 2.250 Select one: O a. 2.481 g O b. 3.308 g O c.4.962 g O d. 1.241 g You added...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) Substance Melecular weight am Molar mass (g) LiP MON ZASO, Nichek) nitrate Irell) phosphate For the following mole calculations use dimensional analysis, showing the canceling of the units, and retain in your answer the number of significant figures in the measurements that is initially given to you. 2) Convert the following mass values to moles or mole values to masses....
7. Sulfur trioxide has a molecular weight of 80.07 g/mol SO, What is the volume, in milliliters, of 0.28 grams of sulfur trioxide gas at STP? (4 points) 8. Consider the following balanced chemical reaction. 2 H2O2 (aq) → 2 H20 (1) + O2() How many liters of molecular oxygen gas are formed if 1.19 x 10 molecules of hydrogen peroxide (H2O) are allowed to decompose at STP? (4 points) Note: There are a total of 38 points possible on...
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