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i need help with 11.114 please.
115 0.225 g of ntains 1.54 g of HNO, 5:...
1.A 20.0-mL sample of 0.150 M nitrous acid (HNO:) is titrated with 0.200 M NaOH at...
1.A 20.0-mL sample of 0.150 M nitrous acid (HNO:) is titrated with 0.200 M NaOH at 25°C. Calculate the pH after 10.0 mL of the NaOH solution has been added. K. for HNO2 = 4.5x 10 A) 3.65 B) 10.35 C) 10.95 D) 3.17 E) 3.52 2. Consider the following reaction: NO, (ag)+H(aq) + l:(s) NO:(g) + H20(D 10, (ag) Which of the following statements is correct? A) The species reduced is I B) Oxidation umber of oxygen increases C)...
I need help in find the solution and understanding the work process behind solve the problems...
I need help in find the solution and understanding the
work process behind solve the problems step by step. I would
appreciate the help with these problems
1. What is the treezing point of a solution prepared by dissolving 20 g of NaCI (MW 58.4 g mol) in 150 ml. of water? The freezing point depression constant, K, for water 53.4 2. What is the osmotic pressure formed by dissolving 44 2 mg of aspirin (C,l1,0) in 0.358 L of...
2. If the percent yield for the following reaction is 75.0%, and 25.0 g of NO2 are consumed in the reaction, how m...
2. If the percent yield for the following reaction is 75.0%, and 25.0 g of NO2 are consumed in the reaction, how many grams of nitric acid, HNO3(aq) are produced? 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g) 4. A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150. mL of solution. The student then took 15.0 mL of the stock solution and diluted it with enough water to make water...
**Please help with part C I have included the other parts with the answers I got...
**Please help with part C I have included the other parts with the answers I got as additional information required for C.** A) A strontium hydroxide solution is prepared by dissolving 10.35 g of Sr(OH)2 in water to make 59.00 mL of solution.What is the molarity of this solution? Express your answer to four significant figures and include the appropriate units. ANSWER: 1.442 M B) Next the strontium hydroxide solution prepared in part (a) is used to titrate a nitric...
What mass (ing) of a concentrated solution of nitric acid (68.8% HNO, by mass) is needed...
What mass (ing) of a concentrated solution of nitric acid (68.8% HNO, by mass) is needed to prepare 394.5 g of a 13.7% solution of HNO, by mass? X 9 Supporting Materials Periodic Table Constants and Factors Supplemental Data Additional Materials eBook . -/1.5 points OSGenChemWA1 3.4.WA.001. My Notes The formula for the mass percent of a component in a solution is shown mass percent component 1000 solution In this formula, m i s the mass of the component and...
29,31,32 please 29) A student prepared a stock solution by dissolving 15.0 g of KOH in...
29,31,32 please
29) A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150 mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution. What is the concentration of KOH for the final solution? A) O. 411 M B) 0.534 M C) 1.87 M D) 2.43 M 30) The mixing of which pair of...
can you please answer this one, the first one I posted the answer was wrong. Potassium...
can you please answer this one, the first
one I posted the answer was wrong.
Potassium permanganate in acidic solution is used to titrate a solution of hydrogen peroxide, with which it reacts according to 2MnO4 (aq) + 5H2O2(aq)+6H30+(aq)—>2Mn2+(aq) + 502(g)+14H2O(1) A potassium permanganate solution is prepared by dissolving 22.00 g of KMnO4 in water and diluting to a total volume of 1.000 L. A total of 20.27 mL of this solution is required to reach the endpoint in a...
I need help Part A What volume (in mL) of a 0 200 M HNO, solution...
I need help
Part A What volume (in mL) of a 0 200 M HNO, solution is required to completely react with 36.7 mL of a 0.108 M NaaCO3 solution according to the following balanced chemical equation? NagCO3(aq) + 2 HNO3(aq) +2 NaNO3(aq) + CO2(g) + H2O(1) Express your answer with the appropriate units. THẢ5 0 3 ? V = Value Units Submit Request Answer P Pearson
I need help with all of them. Please and thank you! 8. A What is the...
I need help with all of them. Please and thank you!
8. A What is the pH of a solution prepared by dissolving 2.25 mol of chloroacetic acid, (HC2H2O2Cl) in 1.50 L of water? For chloroacetic acid, K. = 1.4 x 10. A) 1.69 B) 2.27 C) 11.7 D) 1.34 E) 2.55 10. Hydroxylamine, HONH, readily forms salts such as hydroxylamine hydrochloride which are used as antioxidants in soaps. Hydroxylamine has Kb of 9.1 x 107. What is the pH...
5. (10 pts) Find pH of solution prepared by dissolving 1.0 g of sodium carbonate and...
5. (10 pts) Find pH of solution prepared by dissolving 1.0 g of sodium carbonate and 1.0 g of sodium hydrogen carbonate in enough water to make 100.0 mL solution. The base dissociation constant of carbonate ion is 1.8x10-4. Assume that hydrogen carbonate ion does not react with water.
1.A 20.0-mL sample of 0.150 M nitrous acid (HNO:) is titrated with 0.200 M NaOH at 25°C. Calculate the pH after 10.0 mL of the NaOH solution has been added. K. for HNO2 = 4.5x 10 A) 3.65 B) 10.35 C) 10.95 D) 3.17 E) 3.52 2. Consider the following reaction: NO, (ag)+H(aq) + l:(s) NO:(g) + H20(D 10, (ag) Which of the following statements is correct? A) The species reduced is I B) Oxidation umber of oxygen increases C)...
I need help in find the solution and understanding the
work process behind solve the problems step by step. I would
appreciate the help with these problems
1. What is the treezing point of a solution prepared by dissolving 20 g of NaCI (MW 58.4 g mol) in 150 ml. of water? The freezing point depression constant, K, for water 53.4 2. What is the osmotic pressure formed by dissolving 44 2 mg of aspirin (C,l1,0) in 0.358 L of...
2. If the percent yield for the following reaction is 75.0%, and 25.0 g of NO2 are consumed in the reaction, how many grams of nitric acid, HNO3(aq) are produced? 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g) 4. A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150. mL of solution. The student then took 15.0 mL of the stock solution and diluted it with enough water to make water...
What mass (ing) of a concentrated solution of nitric acid (68.8% HNO, by mass) is needed to prepare 394.5 g of a 13.7% solution of HNO, by mass? X 9 Supporting Materials Periodic Table Constants and Factors Supplemental Data Additional Materials eBook . -/1.5 points OSGenChemWA1 3.4.WA.001. My Notes The formula for the mass percent of a component in a solution is shown mass percent component 1000 solution In this formula, m i s the mass of the component and...
29,31,32 please
29) A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150 mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution. What is the concentration of KOH for the final solution? A) O. 411 M B) 0.534 M C) 1.87 M D) 2.43 M 30) The mixing of which pair of...
can you please answer this one, the first
one I posted the answer was wrong.
Potassium permanganate in acidic solution is used to titrate a solution of hydrogen peroxide, with which it reacts according to 2MnO4 (aq) + 5H2O2(aq)+6H30+(aq)—>2Mn2+(aq) + 502(g)+14H2O(1) A potassium permanganate solution is prepared by dissolving 22.00 g of KMnO4 in water and diluting to a total volume of 1.000 L. A total of 20.27 mL of this solution is required to reach the endpoint in a...
I need help
Part A What volume (in mL) of a 0 200 M HNO, solution is required to completely react with 36.7 mL of a 0.108 M NaaCO3 solution according to the following balanced chemical equation? NagCO3(aq) + 2 HNO3(aq) +2 NaNO3(aq) + CO2(g) + H2O(1) Express your answer with the appropriate units. THẢ5 0 3 ? V = Value Units Submit Request Answer P Pearson
I need help with all of them. Please and thank you!
8. A What is the pH of a solution prepared by dissolving 2.25 mol of chloroacetic acid, (HC2H2O2Cl) in 1.50 L of water? For chloroacetic acid, K. = 1.4 x 10. A) 1.69 B) 2.27 C) 11.7 D) 1.34 E) 2.55 10. Hydroxylamine, HONH, readily forms salts such as hydroxylamine hydrochloride which are used as antioxidants in soaps. Hydroxylamine has Kb of 9.1 x 107. What is the pH...
5. (10 pts) Find pH of solution prepared by dissolving 1.0 g of sodium carbonate and 1.0 g of sodium hydrogen carbonate in enough water to make 100.0 mL solution. The base dissociation constant of carbonate ion is 1.8x10-4. Assume that hydrogen carbonate ion does not react with water.
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