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9. What minimum mass of iron (II) nitrate must be added to 10.0 of a 0.0699...
7. The following reaction occurs in basic solution: H2O(aq) + MnO, (aq) + CIO (aq) -...
7. The following reaction occurs in basic solution: H2O(aq) + MnO, (aq) + CIO (aq) - MnO (s) + CIO, (ag) + OH(aq) When the equation is properly balanced, what is the sum of the lowest whole number coefficients? a. 20 b. 9 c. 10 d. 6 e. 12 8. What is the molarity of an Nal solution that contains 7.0 g of Nal in 21.0 mL of solution? a. 2.2 M b. 0.046 M c. 0.003 M d. 0.00014...
14. What minimum mass of cobalt(II) nitrate must be added to 60.0 mL of a 0.0890...
14. What minimum mass of cobalt(II) nitrate must be added to 60.0 mL of a 0.0890 M phosphate solution in order to completely precipitate all of the phosphate as solid cobalt(II) phosphate? 2PO4 (aq) + 3Co(NO3)2(aq) - Co3(PO4)2(s) + 6NO3 (aq)
molar 7. How many grams of CO 28.01 /mol) must be bumed to produce 225 kJ...
molar 7. How many grams of CO 28.01 /mol) must be bumed to produce 225 kJ of heat urma 2006 +020 200260 AH = -566 kJ c) 2238 ite a) 0.398 8 b) 0.795 g c) 2.52 g d) 11.1 g 3. Calculate the mass of excess reactant remaining after 4.50 mol of LHCO (67.96 R/mol) and 8.50 mol of H2504 (98.08 g/mol) reacted according to the equation shown below. 2LHCO3 + H2SO4 - Li2SO4 + 2H20 + 2002 e)...
HOME WORK 3 Answer the questions on a separate sheet of paper. You must write your...
HOME WORK 3 Answer the questions on a separate sheet of paper. You must write your name on the paper and date it. 1. A 50.0 mL sample of a gas was found to have a pressure of 1.0 atm at 25 °C. What will be the new volume if the pressure is changed to 0.50 atm at constant temperature? 2. The temperature of 20. 0 mL of certain gas was changed from 25.0 °C to 50 °C at constant...
RCICICLES Use the References to access important values if needed for this question. What volume of...
RCICICLES Use the References to access important values if needed for this question. What volume of hydrogen gas is produced when 94.2 g of iron reacts completely according to the following reaction at 25 °C and 1 at iron (s) + hydrochloric acid(aq) iron(II) chloride (aq) + hydrogen(s) liters hydrogen gas ILULUI-assignment-take [Review Topics] (References] Use the References to access important values if needed for this question. An iron nail rusts when exposed to oxygen. How many grams of iron...
I need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71 Documents Pearson Updad Assgrmerti Eimiting....
I
need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...
[References] What volume of ethylene glycol (C2HO2), a nonelectrolyte, must be added to 12.0 L water...
[References] What volume of ethylene glycol (C2HO2), a nonelectrolyte, must be added to 12.0 L water to produce an antifreeze solution with a freezing point of-19.0°C? (The density of ethylene glycol is 1.11 g/cm°, and the density of water is 1.00 g/cm³. K, for water is 0.51°C•kg/mol and Kf is 1.86°C kg/mol.) Volume %3D What is the boiling point of this solution? Boiling point °C %3D 5 item attempts remaining Submit Answer Try Another Version [References] Consider an aqueous solution...
*SHOW YOUR WORK* (Boyle's Law): 1. What is the final volume (in mL) or argon gas...
*SHOW YOUR WORK* (Boyle's Law): 1. What is the final volume (in mL) or argon gas is 50.0 mL at 705 torr is compressed to a pressure of 2.75 atm, at constant temperature? (Lewis Dot Structures): 2. Draw Lewis structures for the following molecules. Include partial charges, AXE designation, (example: AX2 E2), Electron-pair geometry and geometric-molecular shapes. Is it Polar or Non-Polar? CH2Cl2 SO2 3. Which of the following explains why the pressure of a gas increases when the temperature...
1. What mass of natural gas (CH4) must you burn to emit 260 kJ of heat?...
1. What mass of natural gas (CH4) must you burn to emit 260 kJ of heat? CH4(g)+2O2(g)→CO2(g)+2H2O(g) ΔH∘rxn=−802.3kJ 2.Consider the following thermochemical equation for the combustion of acetone, C3H6OC3H6O, the main ingredient in nail polish remover: C3H6O(l)+4O2(g)→3CO2(g)+3H2O(g)ΔH∘rxn=−1790kJ If a bottle of nail polish remover contains 173 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788 g/mL 3.Zinc metal reacts with hydrochloric acid according to the following balanced equation: Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When...
62) Assume that you have a cylinder with a movable piston. What would happen to the gas pressure ...
62) Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you were to do the following? (a) Triple the Kelvin temperature while holding the volume constant (b) Reduce the amount of gas by 1/3 while holding the temperature and volume constant (c) Decrease the volume by 45% at constant T (d) Halve the Kelvin temperature, and triple the volume 63) Assuming that air contains 78.0 percent Ni, 20.0...
7. The following reaction occurs in basic solution: H2O(aq) + MnO, (aq) + CIO (aq) - MnO (s) + CIO, (ag) + OH(aq) When the equation is properly balanced, what is the sum of the lowest whole number coefficients? a. 20 b. 9 c. 10 d. 6 e. 12 8. What is the molarity of an Nal solution that contains 7.0 g of Nal in 21.0 mL of solution? a. 2.2 M b. 0.046 M c. 0.003 M d. 0.00014...
14. What minimum mass of cobalt(II) nitrate must be added to 60.0 mL of a 0.0890 M phosphate solution in order to completely precipitate all of the phosphate as solid cobalt(II) phosphate? 2PO4 (aq) + 3Co(NO3)2(aq) - Co3(PO4)2(s) + 6NO3 (aq)
molar 7. How many grams of CO 28.01 /mol) must be bumed to produce 225 kJ of heat urma 2006 +020 200260 AH = -566 kJ c) 2238 ite a) 0.398 8 b) 0.795 g c) 2.52 g d) 11.1 g 3. Calculate the mass of excess reactant remaining after 4.50 mol of LHCO (67.96 R/mol) and 8.50 mol of H2504 (98.08 g/mol) reacted according to the equation shown below. 2LHCO3 + H2SO4 - Li2SO4 + 2H20 + 2002 e)...
HOME WORK 3 Answer the questions on a separate sheet of paper. You must write your name on the paper and date it. 1. A 50.0 mL sample of a gas was found to have a pressure of 1.0 atm at 25 °C. What will be the new volume if the pressure is changed to 0.50 atm at constant temperature? 2. The temperature of 20. 0 mL of certain gas was changed from 25.0 °C to 50 °C at constant...
RCICICLES Use the References to access important values if needed for this question. What volume of hydrogen gas is produced when 94.2 g of iron reacts completely according to the following reaction at 25 °C and 1 at iron (s) + hydrochloric acid(aq) iron(II) chloride (aq) + hydrogen(s) liters hydrogen gas ILULUI-assignment-take [Review Topics] (References] Use the References to access important values if needed for this question. An iron nail rusts when exposed to oxygen. How many grams of iron...
I
need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...
[References] What volume of ethylene glycol (C2HO2), a nonelectrolyte, must be added to 12.0 L water to produce an antifreeze solution with a freezing point of-19.0°C? (The density of ethylene glycol is 1.11 g/cm°, and the density of water is 1.00 g/cm³. K, for water is 0.51°C•kg/mol and Kf is 1.86°C kg/mol.) Volume %3D What is the boiling point of this solution? Boiling point °C %3D 5 item attempts remaining Submit Answer Try Another Version [References] Consider an aqueous solution...
62) Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you were to do the following? (a) Triple the Kelvin temperature while holding the volume constant (b) Reduce the amount of gas by 1/3 while holding the temperature and volume constant (c) Decrease the volume by 45% at constant T (d) Halve the Kelvin temperature, and triple the volume 63) Assuming that air contains 78.0 percent Ni, 20.0...
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