Homework Answers
Option no 1 is correct as it describes the Law of multiple proportions also known as daltons law which states that when one element combines with another to form more than one compound, the mass ratio of elements in the compound are simple whole numbers of each other.
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Carbon can react with hydrogen to form several different compounds. Two compounds that contain only carbon...
2.1 MULTIPLE CHOICE 1) Which element has the chemical symbol, P? Al lead B) phosphorus platinum...
2.1 MULTIPLE CHOICE 1) Which element has the chemical symbol, P? Al lead B) phosphorus platinum D) potassium to water is formed if 3.2 of methane reacts with 12. Me react to form carbon code and water. What of open to produce 3.3 o carbon dioxide? A1724 14.88 DJ 160 3) Which of the following two whom we stopes? 2.2 OTHER QUESTIONS (Fill in the blank, TRUE or FALSE and calculations) On and Complete the sentences in questions and using...
According to the atomic theory, atoms cannot be divided into parts. True False According to the...
According to the atomic theory, atoms cannot be divided into parts. True False According to the law of multiple proportions, two elements can form two different compounds having the same mass ratio. True False According to the law of definite proportions, all water would contain the same ratio (by weight) of oxygen to hydrogen. True alse Mass is conserved during a chemical or physical process True False A molecule is the smallest part of a compound which has all the...
Solid carbon can react with gaseous water to form carbon monoxide gas and hydrogen gas. The...
Solid carbon can react with gaseous water to form carbon monoxide gas and hydrogen gas. The equilibrium constant for the reaction at 700.0 KK is Kp=1.60×10−3Kp=1.60×10−3. If a 1.55-LL reaction vessel initially contains 249 torr of water at 700.0 K in contact with excess solid carbon, find the percent by mass of hydrogen gas of the gaseous reaction mixture at equilibrium.
Solid carbon can react with gaseous water to form carbon monoxide gas and hydrogen gas. The...
Solid carbon can react with gaseous water to form carbon monoxide gas and hydrogen gas. The equilibrium constant for the reaction at 700.0 K is Kp=1.60×10−3. If a 1.55-L reaction vessel initially contains 174 torr of water at 700.0 K in contact with excess solid carbon, find the percent by mass of hydrogen gas of the gaseous reaction mixture at equilibrium. Please show step by step solutions. Thank you!
Methane can react with water to form carbon dioxide and hydrogen according to the following equation:...
Methane can react with water to form carbon dioxide and hydrogen according to the following equation: CH4(g) + 2H2O(g) ↔ CO2(g) + 4H2(g) Use the following thermodynamic data at 298 K to determine the temperature at which the reaction goes from being spontaneous to nonspontaneous. Substance CH4(g) H2O(g) CO2(g) H2(g) ΔHºf (kJ/mol) -74.87 -241.8 -393.5 0 ΔGºf (kJ/mol) -50.81 -228.6 -394.4 0 Sºf (J/Kmol) 186.1 188.8 213.7 130.7
4. Two different compounds having the elemental composition C8H13Br are formed when 1,6-dimethylcyclohexene reacts with hydrogen...
4. Two different compounds having the elemental composition C8H13Br are formed when 1,6-dimethylcyclohexene reacts with hydrogen bromide in the dark and in the absence of peroxides. The same two compounds are formed from 1,2- dimethylcyclohexene. What are the chemical structures of these two products? OBSERVATION DEDUCTION J= K = L=
35. Carbon monoxide and hydrogen can react under different conditions to give different products. One system...
35. Carbon monoxide and hydrogen can react under different conditions to give different products. One system produces methyl alcohol, CH 3O H (g), when CO and H2 react in the presence of a suitable catalyst. a. At 227°C, after the reaction has reached equilibrium, the partial pressures of CO, H 2, and CH 3O H are 0.702 atm, 1.75 atm, and 0.0134 atm, respectively. Calculate K c for the reaction at 227°C. b.What is the K c for the decomposition...
2. Determine the mole ratio for the following reaction: oxygen gas and carbon react to form...
2. Determine the mole ratio for the following reaction: oxygen gas and carbon react to form carbon monoxide, CO. 3. Determine the number of moles of sodium hydroxide, NaOH, produced when 2 mol of sodium and 3 mol of water react to form sodium hydroxide and hydrogen gas, H2. 4. Calculate the mass of carbon monoxide, CO, that was needed to produce 78 g of methanol, CH2OH, by the following reaction: 2H2 + CO → CH3OH. 5. Demonstrate that the...
I have filled in two glass gas bulbs with the same pressure of two different gasses:...
I have filled in two glass gas bulbs with the same pressure of two different gasses: hydrogen gas (H2) and propane gas (CH,CH,CH3). The gas bulbs have the same volume and are also kept at the same temperature. Which of the two bulbs contains more molecules of gas? Select one: a. The bulb filled with propane contains more molecules, because propane has a greater molar mass than hydrogen b. The bulb filled with propane contains more molecules, because one propane...
Equal amounts of carbon monoxide and bromine react at 70° C to form carbonyl bromide. CO...
Equal amounts of carbon monoxide and bromine react at 70° C to form carbonyl bromide. CO (g) + Br2 (g) <-->COBr2 (g) a) What is the equilibrium constant Kp at this temperature of the reaction when there is 47.2 volume-% of carbon monoxide in the equilibrium mixture and the total pressure in the equilibrium mixture is 1.0 MPa? Give the answer to four decimal places. The balance equation unit does not need to be written into the answer. (use partial...
2.1 MULTIPLE CHOICE 1) Which element has the chemical symbol, P? Al lead B) phosphorus platinum D) potassium to water is formed if 3.2 of methane reacts with 12. Me react to form carbon code and water. What of open to produce 3.3 o carbon dioxide? A1724 14.88 DJ 160 3) Which of the following two whom we stopes? 2.2 OTHER QUESTIONS (Fill in the blank, TRUE or FALSE and calculations) On and Complete the sentences in questions and using...
According to the atomic theory, atoms cannot be divided into parts. True False According to the law of multiple proportions, two elements can form two different compounds having the same mass ratio. True False According to the law of definite proportions, all water would contain the same ratio (by weight) of oxygen to hydrogen. True alse Mass is conserved during a chemical or physical process True False A molecule is the smallest part of a compound which has all the...
4. Two different compounds having the elemental composition C8H13Br are formed when 1,6-dimethylcyclohexene reacts with hydrogen bromide in the dark and in the absence of peroxides. The same two compounds are formed from 1,2- dimethylcyclohexene. What are the chemical structures of these two products? OBSERVATION DEDUCTION J= K = L=
2. Determine the mole ratio for the following reaction: oxygen gas and carbon react to form carbon monoxide, CO. 3. Determine the number of moles of sodium hydroxide, NaOH, produced when 2 mol of sodium and 3 mol of water react to form sodium hydroxide and hydrogen gas, H2. 4. Calculate the mass of carbon monoxide, CO, that was needed to produce 78 g of methanol, CH2OH, by the following reaction: 2H2 + CO → CH3OH. 5. Demonstrate that the...
I have filled in two glass gas bulbs with the same pressure of two different gasses: hydrogen gas (H2) and propane gas (CH,CH,CH3). The gas bulbs have the same volume and are also kept at the same temperature. Which of the two bulbs contains more molecules of gas? Select one: a. The bulb filled with propane contains more molecules, because propane has a greater molar mass than hydrogen b. The bulb filled with propane contains more molecules, because one propane...
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