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3. Which reaction describes why the pH is not 7 for the dissolution of MgF2 in...
E 21 (1 Point) Which of the following represent the reaction between MgO and H2O? a)...
E 21 (1 Point) Which of the following represent the reaction between MgO and H2O? a) 2MgO + H20 → 2MgOH + 12 02 b) MgO + H2O + Mg(OH)2 MgO + H2O → Mg + H2O2 d) MgO + H2O → MgH2 + O2 А Св
In a saturated solution of MgF2 at 16 °C, the concentration of Mg2+ is 1.44x10 –3...
In a saturated solution of MgF2 at 16 °C, the concentration of Mg2+ is 1.44x10 –3 M The equilibrium is represented by the equation MgF2 -->Mg 2+ + 2 F-. A.Write the expression for the solubility product constant, Ksp. B.Calculate the value of Ksp at 16°C for MgF2 Note: Your answer is assumed to be reduced to the highest power possible. C.Calculate the equilibrium concentration of Mg2+ in 1.000 L of saturated MgF2 solution at 16°C to which 0.450 mole of...
MgF2(s) <--> Mg2+(aq) + 2 F–(aq) In a saturated solution of MgF2 at 18 0C, the...
MgF2(s) <--> Mg2+(aq) + 2 F–(aq) In a saturated solution of MgF2 at 18 0C, the concentration of Mg2+ is 1.21 x 10–3 molar. The equilibrium is represented by the equation above. (a) Write the expression for the solubility-product constant, Ksp, and calculate its value at 18 0C. (b) Calculate the equilibrium concentration of Mg2+ in 1.000 liter of saturated MgF2 solution at 18 0C to which 0.100 mole of solid KF has been added. The KF dissolves completely. Assume...
How do you do these problems? I got all of them wrong and don't understand why....
How do you do these problems? I got all of them wrong and
don't understand why.
- 10. Which of the changes will increase the value of K, for the reaction? 2 SO2(g) + O2(g) - 2 SO3(g) AH = -200 kJ/mol A. Lowering the temperature B. Increasing the pressure (CCAdding 02 D. Removing SO, 3. Which reaction describes why the pH is not 7 for the dissolution of NaNO2 in water? ADNa+ + 2 H2O = NaOH + H2O*...
options for part 2 are ionic dissolution, molecular dissolution, molecular ionization, and no reaction Which of...
options for part 2 are ionic dissolution, molecular dissolution,
molecular ionization, and no reaction
Which of the following equations has errors? A. HNO3 (1)+ H20 (aq)--> NO3- (aq)+H30+ (aq) B. C3H7OH (g) + H20 (1) --> C3H7OH(aq) C. KCl(s) + H2O(1) --> K+ (aq) + Cl"(aq) D. They all have errors Select the correct reaction type for each molecule or compound when added to water: Magnesium sulfate, MgSO4 [Select] Calcium carbonate, CaCO3 [ Select] Ethanol, C2H5OH [ Select] < Ammonium...
3. Which of the following changes to a saturated solution of Mg(OH)2 will cause the solubility of Mg(OH)2 to increa...
3. Which of the following changes to a saturated solution of Mg(OH)2 will cause the solubility of Mg(OH)2 to increase, dissolving more of the solid? A. Addition of soluble NaOH B. Addition of soluble Mg(NO3)2 C. Addition of Mg(OH)2(5) D. Lowering the pH of the solution E. Increasing the pH of the solution 4. Which of the following best describes the redox reaction occurring in the hydrogen fuel cell? A. H2 + 2OH → 2H2O B. H* + OH-H20 C....
help with thes 12. In the reaction, K2SO4(99) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which...
help with thes
12. In the reaction, K2SO4(99) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which ions are the spectator ions? a. Ba2+ and SO42- b. Ba2+ and K+ c. Ba2+ and NO3 d. K+ and SO42- e. K+ and NO3 13 Which is the net ionic equation for the reaction which takes place when HCl(ag) is added to KOH(aq)? a. HCl(aq) + KOH(99) KCl(aq) + H2O(1) b. H(aq) + OH(aq) + H2O(1) c. HCl(aq) + OH(aq) + Cl(aq) +...
Which of the following statements describes a basic solution? 1. [H30+]> [OH] 2. [H30]<[OH] 3. [H30']...
Which of the following statements describes a basic solution? 1. [H30+]> [OH] 2. [H30]<[OH] 3. [H30'] x [OH] #1 x 10-14 4. [H3O+]/[OH] = 1 x 10-14 5. [H3O+]/[OH]=1 If the pH of a solution is 10, what is the hydronium, H ion concentration? 1. A) 1 x 10-10 M 2. B) 1 x 1010 M 3. C) 10 M 4. D) 10 M 5.E) * 1 1010 M As the pH increases the hydroxide ion concentration 1. A) goes...
Arrange the following compounds/ions in order of increasing pH, and please explain why? I am trying...
Arrange the following compounds/ions in order of increasing pH,
and please explain why? I am trying to understand and would love an
explanation. Thanks alot.
1. Arrange each group of compound s/ions in order of increasing pH a) (3 pts) KBr Na2CO3 Mg(OH)2 HC1 b) (3 pts) SiH4 HI H2S HCl c) (3 pts) HCIO HIO IO HIO3 d) (3 pts) H20 H30 OH HF e) (3 pts) H2S Nal HCI KOH
36,46 and 71 please. 36.Which of the following reactions best describes the dissolution of gaseous hydrogen...
36,46 and 71 please.
36.Which of the following reactions best describes the dissolution of gaseous hydrogen chloride (HCI) in water? A) HCI(g) + 2H20()-> HO+(ay) + CIO-(aq) + H2(g) B) 2HCl(g) → H2(g) + Cldg) C) HCI(g) + H2O() → H30+(aq) + Cl-(aq) D) HCI(g) + 5H20() → HO+(aq) + CIO4-(aq) + 4H2(g) E) HCI(g) + H20() → H60+(aq) + ClO-(aq) 37 uhich ofthe following reactions hest descrihes the acid-base properties of acetic acid
E 21 (1 Point) Which of the following represent the reaction between MgO and H2O? a) 2MgO + H20 → 2MgOH + 12 02 b) MgO + H2O + Mg(OH)2 MgO + H2O → Mg + H2O2 d) MgO + H2O → MgH2 + O2 А Св
How do you do these problems? I got all of them wrong and
don't understand why.
- 10. Which of the changes will increase the value of K, for the reaction? 2 SO2(g) + O2(g) - 2 SO3(g) AH = -200 kJ/mol A. Lowering the temperature B. Increasing the pressure (CCAdding 02 D. Removing SO, 3. Which reaction describes why the pH is not 7 for the dissolution of NaNO2 in water? ADNa+ + 2 H2O = NaOH + H2O*...
options for part 2 are ionic dissolution, molecular dissolution,
molecular ionization, and no reaction
Which of the following equations has errors? A. HNO3 (1)+ H20 (aq)--> NO3- (aq)+H30+ (aq) B. C3H7OH (g) + H20 (1) --> C3H7OH(aq) C. KCl(s) + H2O(1) --> K+ (aq) + Cl"(aq) D. They all have errors Select the correct reaction type for each molecule or compound when added to water: Magnesium sulfate, MgSO4 [Select] Calcium carbonate, CaCO3 [ Select] Ethanol, C2H5OH [ Select] < Ammonium...
3. Which of the following changes to a saturated solution of Mg(OH)2 will cause the solubility of Mg(OH)2 to increase, dissolving more of the solid? A. Addition of soluble NaOH B. Addition of soluble Mg(NO3)2 C. Addition of Mg(OH)2(5) D. Lowering the pH of the solution E. Increasing the pH of the solution 4. Which of the following best describes the redox reaction occurring in the hydrogen fuel cell? A. H2 + 2OH → 2H2O B. H* + OH-H20 C....
help with thes
12. In the reaction, K2SO4(99) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which ions are the spectator ions? a. Ba2+ and SO42- b. Ba2+ and K+ c. Ba2+ and NO3 d. K+ and SO42- e. K+ and NO3 13 Which is the net ionic equation for the reaction which takes place when HCl(ag) is added to KOH(aq)? a. HCl(aq) + KOH(99) KCl(aq) + H2O(1) b. H(aq) + OH(aq) + H2O(1) c. HCl(aq) + OH(aq) + Cl(aq) +...
Which of the following statements describes a basic solution? 1. [H30+]> [OH] 2. [H30]<[OH] 3. [H30'] x [OH] #1 x 10-14 4. [H3O+]/[OH] = 1 x 10-14 5. [H3O+]/[OH]=1 If the pH of a solution is 10, what is the hydronium, H ion concentration? 1. A) 1 x 10-10 M 2. B) 1 x 1010 M 3. C) 10 M 4. D) 10 M 5.E) * 1 1010 M As the pH increases the hydroxide ion concentration 1. A) goes...
Arrange the following compounds/ions in order of increasing pH,
and please explain why? I am trying to understand and would love an
explanation. Thanks alot.
1. Arrange each group of compound s/ions in order of increasing pH a) (3 pts) KBr Na2CO3 Mg(OH)2 HC1 b) (3 pts) SiH4 HI H2S HCl c) (3 pts) HCIO HIO IO HIO3 d) (3 pts) H20 H30 OH HF e) (3 pts) H2S Nal HCI KOH
36,46 and 71 please.
36.Which of the following reactions best describes the dissolution of gaseous hydrogen chloride (HCI) in water? A) HCI(g) + 2H20()-> HO+(ay) + CIO-(aq) + H2(g) B) 2HCl(g) → H2(g) + Cldg) C) HCI(g) + H2O() → H30+(aq) + Cl-(aq) D) HCI(g) + 5H20() → HO+(aq) + CIO4-(aq) + 4H2(g) E) HCI(g) + H20() → H60+(aq) + ClO-(aq) 37 uhich ofthe following reactions hest descrihes the acid-base properties of acetic acid
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