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QUESTION 13 What the % water of hydration composition in ZnSO4 7H2O? 1.44 O2.41 3.25 04.20...
QUESTION 14 1 POINT What is the percent composition of C in Co H14? The atomic...
QUESTION 14 1 POINT What is the percent composition of C in Co H14? The atomic mass of C is 12.01 g/mol; the molar mass of Co H14 is 86.18 g/mol. Select the correct answer below: 83.62% o 88.16% 0 74.88% O 13.95%
D Question 32 3 pts What is the molar solubility of Az SOs in water? The...
D Question 32 3 pts What is the molar solubility of Az SOs in water? The solubility product constant for silver sulfite is 1.5 x 10-14 at 25°C 0 16x 10-5M 20 x 10-5M 0 12 x 10-7M O 8.7 x 10-*M Question 33 3 pts Nitrogen reacts with fluorine to form nitrogen trifluoride: N_) + 3F.6 2NF,3 AH.-249 kJ and 19.-278.J Calculate AG, and determine whether the equilibrium composition should Ezzor reactants or products at 25°C. O AGS -...
show work Window Help Question 13 474 pts The ionization constant of water at a temperature...
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Window Help Question 13 474 pts The ionization constant of water at a temperature above 25°C is 3.5 10-14. What is the pH of pure water at this temperature? CALCULATIONS MUST BE PROVIDED FOR FULL CREDIT 2H2O)H30 (aq) + OH (aq) 773 7.00 673 553 1349 6/6 pts Question 14 What is the pH of a solution prepared by dissolving 0.296 g of NaOHis) in 9.00 L of water? CALCULATIONS MUST BE PROVIDED FOR FULL CREDIT 7.000 O2131...
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases....
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases. Decreases. QUESTION 14 Given the chemical equation for the auto ionization of water, select the correct product that should be in the blank space. H2O + H20 11 + OH- Оно* OH © H20
D Question 13 4 pts 13. Consider the reaction between calcium metal and water to produce...
D Question 13 4 pts 13. Consider the reaction between calcium metal and water to produce calcium hydroxide and hydrogen. You have seen a reaction similar to this reaction demonstrated. The balanced equationfor the process is shown. Ca (s) + 2 H20(1) -> Ca(OH)2(aq) + H2(g) + 430 kJ One substance is a GAS. Is the GAS a reactant or product? product reactant Question 14 4 pts 14. Consider the reaction between calcium metal and waterto produce calcium hydroxide and...
Question Completion Status: Path:p QUESTION 13 13) For the circuit below a. What is the polarity...
Question Completion Status: Path:p QUESTION 13 13) For the circuit below a. What is the polarity of the output voltage2 b. What is the amplitude of the voltage itself? TTT Arial 3(124) T. E . QUESTION 14 14 Draw the basic schematic of an electro-mechanical
Question 13 Water is poured into a container that has a leak. The mass m of...
Question 13 Water is poured into a container that has a leak. The mass m of the water is given as a function of time t by m = 5.10.8 - 2.7t + 18, with t > 0, m in grams, and t in seconds. (a) At what time is the water mass greatest, and (b) what is that greatest mass? What is the rate of mass change at (c) t = 2.2 s and (d) t = 5.3 s?...
1. 4. What property of water is responsible for water transport in plants? Question 4 options:...
1. 4. What property of water is responsible for water transport in plants? Question 4 options: a. moderation of temperature b. insulation c. its versatility as a solvent d. cohesion 5. 5. Which of the following explains what is happening when sodium chloride dissolves in water? Question 5 options: a. Covalent bonds are breaking and re-forming. b. More hydrogen bonds are forming between water molecules. c. Sodium and chloride atoms are separating from one another d. Hydration shells are...
QUESTION 10 What is the othe r enthalpy of hydration of hydrous CuSO4 calculated from the...
QUESTION 10 What is the othe r enthalpy of hydration of hydrous CuSO4 calculated from the relevant enthalpies of formation and Hese's Law Use the values for the enties of formation provided below in your calculation Compound Hmol CuSO SH2000 нео) mol -79/mo 0-1509/mol 0271 kmal QUESTION 11 The standard reduction potential for the n n couple is volts. What would the reduction potentiale if the Zn2 solution has a concentration of 0.27 M and is at a temperature of...
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases....
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases. Decreases. QUESTION 14 Given the chemical equation for the auto ionization of water, select the correct product that should be in the blank space. H2O + H20 = + OH H30+ OH H20 QUESTION 15 Certain solution has a hydronium concentration of 1.0 x 10-mol/L, calculate the pH and select your answer. pH = 9 pH-8 pH - 10 QUESTION 16 Solutes that when...
QUESTION 14 1 POINT What is the percent composition of C in Co H14? The atomic mass of C is 12.01 g/mol; the molar mass of Co H14 is 86.18 g/mol. Select the correct answer below: 83.62% o 88.16% 0 74.88% O 13.95%
D Question 32 3 pts What is the molar solubility of Az SOs in water? The solubility product constant for silver sulfite is 1.5 x 10-14 at 25°C 0 16x 10-5M 20 x 10-5M 0 12 x 10-7M O 8.7 x 10-*M Question 33 3 pts Nitrogen reacts with fluorine to form nitrogen trifluoride: N_) + 3F.6 2NF,3 AH.-249 kJ and 19.-278.J Calculate AG, and determine whether the equilibrium composition should Ezzor reactants or products at 25°C. O AGS -...
show work
Window Help Question 13 474 pts The ionization constant of water at a temperature above 25°C is 3.5 10-14. What is the pH of pure water at this temperature? CALCULATIONS MUST BE PROVIDED FOR FULL CREDIT 2H2O)H30 (aq) + OH (aq) 773 7.00 673 553 1349 6/6 pts Question 14 What is the pH of a solution prepared by dissolving 0.296 g of NaOHis) in 9.00 L of water? CALCULATIONS MUST BE PROVIDED FOR FULL CREDIT 7.000 O2131...
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases. Decreases. QUESTION 14 Given the chemical equation for the auto ionization of water, select the correct product that should be in the blank space. H2O + H20 11 + OH- Оно* OH © H20
D Question 13 4 pts 13. Consider the reaction between calcium metal and water to produce calcium hydroxide and hydrogen. You have seen a reaction similar to this reaction demonstrated. The balanced equationfor the process is shown. Ca (s) + 2 H20(1) -> Ca(OH)2(aq) + H2(g) + 430 kJ One substance is a GAS. Is the GAS a reactant or product? product reactant Question 14 4 pts 14. Consider the reaction between calcium metal and waterto produce calcium hydroxide and...
Question Completion Status: Path:p QUESTION 13 13) For the circuit below a. What is the polarity of the output voltage2 b. What is the amplitude of the voltage itself? TTT Arial 3(124) T. E . QUESTION 14 14 Draw the basic schematic of an electro-mechanical
Question 13 Water is poured into a container that has a leak. The mass m of the water is given as a function of time t by m = 5.10.8 - 2.7t + 18, with t > 0, m in grams, and t in seconds. (a) At what time is the water mass greatest, and (b) what is that greatest mass? What is the rate of mass change at (c) t = 2.2 s and (d) t = 5.3 s?...
QUESTION 10 What is the othe r enthalpy of hydration of hydrous CuSO4 calculated from the relevant enthalpies of formation and Hese's Law Use the values for the enties of formation provided below in your calculation Compound Hmol CuSO SH2000 нео) mol -79/mo 0-1509/mol 0271 kmal QUESTION 11 The standard reduction potential for the n n couple is volts. What would the reduction potentiale if the Zn2 solution has a concentration of 0.27 M and is at a temperature of...
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases. Decreases. QUESTION 14 Given the chemical equation for the auto ionization of water, select the correct product that should be in the blank space. H2O + H20 = + OH H30+ OH H20 QUESTION 15 Certain solution has a hydronium concentration of 1.0 x 10-mol/L, calculate the pH and select your answer. pH = 9 pH-8 pH - 10 QUESTION 16 Solutes that when...
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