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0.1673 O 0.5220 0.01994 Question 7 (1 point) Saved How many moles of H* are in...
Question 7 (1 point) How many moles of H+ are in 120.0 mL of an HCl...
Question 7 (1 point) How many moles of H+ are in 120.0 mL of an HCl stock solution if a 30.00 mL aliquot was titrated with 51.46 mL of 0.1100 M NaOH?
How many moles of sodium hydroxide would have to be added to 150 mL of a...
How many moles of sodium hydroxide would have to be added to 150 mL of a 0.483 M hydrocyanic acid solution, in order to prepare a buffer with a pH of 9.030? moles An aqueous solution contains 0.477 M hypochlorous acid. How many mL of 0.257 M potassium hydroxide would have to be added to 125 mL of this solution in order to prepare a buffer with a pH of 7.040? mL Acid Formula Kal Ка? | Каз Acetic acid...
i need help on both LUIUS. Question Completion Status: QUESTION 21 A 35.0 mL sample of...
i need help on both
LUIUS. Question Completion Status: QUESTION 21 A 35.0 mL sample of 0.180 M benzoic acid is titrated with a 0.180 M NaOH solution. What is the pH at the equivalence point? The Ka of benzoic acid is 6.3 10-5 11.20 9.80 4.20 08.58 7.00 QUESTION 22 A 25.0-ml sample of 0.150 M hydrocyanic acid (HCN) is titrated with a 0.150 M NaOH solution. What is the pH after 13 ml NaOH has been added? The...
Question 21 (1 point) How many moles of chloride ions are present in a 120.0 mL...
Question 21 (1 point) How many moles of chloride ions are present in a 120.0 mL solution of CaCl, that has a concentration of 0.290 M? Your Answer: Answer units Question 22 (1 point) What is the concentration (in M) of a solution that was prepared by dissolving 28.175 g of NaOH in a 350.0 mL solution? Your Answer:
Question 1 (2 points) How many moles of KHP are contained in a sample of 4.656...
Question 1 (2 points) How many moles of KHP are contained in a sample of 4.656 g KHP (Molar Mass = 204.22 g/mol)? 0.0228 moles KHP 0.0656 moles KHP 4656 moles KHP 0.0114 moles HD Question 2 (2 points) If the reaction between KHP and NaOH is: C8H.KOH + NaOH - H2O + CHAKO Na (KHP) How many moles of NaOH are needed to react with 4.656 g of KHP?! 0.0656 moles NaOH 0.0228 moles NaOH 0.0114 moles NaOH 4.656...
Top question. P1. (Sec. 16.2) What is the pH of a solution prepared by adding 0.45...
Top question.
P1. (Sec. 16.2) What is the pH of a solution prepared by adding 0.45 moles of formic acid HCO2H, and 0.40 moles of sodium formate, NaCO,H, in enough water to make a 1.0-liter solution? (Formic Acid: K 1.81 10-) a) 4.32 b) 3.69 c) 5.52 d) 7.32 e) 9.11 P2. (Sec. 16.2) What is the pH of a solution prepared by adding 100 mL of a 0.25 M solution of sodium acetate, NaC2H,O2, into 110 mL of 0.30...
WS #7 3) To the buffer prepared in Question 2 is added 75.0mL a 0.375 M...
WS #7 3) To the buffer prepared in Question 2 is added 75.0mL a 0.375 M HCl solution. What is the resulting buffer? cgpts) рное the 4) The buffer capacity is reached when the pH of the buffer shifts by 1.00pH unit. What volume of a 1.OOM NAOH Solution would need to be added (fresh) MOAB-H/M DAB-Na solution to reach this point? (&pts 5) 1.486 g of an unknown acid is dissolved in 25.00 mL of water. It is titrated...
Question 8 (1 point) If there is 1.0 mole of HCN and 1.0 mole of NaCN...
Question 8 (1 point) If there is 1.0 mole of HCN and 1.0 mole of NaCN in a 100.0 ml aqueous solution and then 0.1 mole of HCl is added what happens? Please make sure to mark all of the correct responses. The number of moles of HCN will increase. The number of moles of HCN will decrease. The number of moles of CN will increase. The number of moles of CN will decrease. The pH will increase. The pH...
Question 1 (1 point) ✓ Saved What is the pH of a solution with 4.62 mL...
Question 1 (1 point) ✓ Saved What is the pH of a solution with 4.62 mL of 0.04 M KOH is added to 9.24 mL of 0.04 M HNO2 ? (Kg - 4.6 x 10-4)
NEED help with these questions Question 1 (1 point) Saved The Ksp of PbCl2 is 1.2...
NEED help with these questions
Question 1 (1 point) Saved The Ksp of PbCl2 is 1.2 x 10-5. What is its molar solubility? 0.72M 1.32M 0.0023 M 0.0022 M 0.018 M 0.12 M 0.014 M 0.0017 M Question 2 (1 point) Saved MacBook Cquivalent point pH, 8.72 pH ONWAOO! IT 0+TT 0 5 10 15 20 25 30 35 40 45 50 Volume of 0.100 M NaOH added (mL) For the titration curve above, what is the Ka of the...
Question 7 (1 point) How many moles of H+ are in 120.0 mL of an HCl stock solution if a 30.00 mL aliquot was titrated with 51.46 mL of 0.1100 M NaOH?
How many moles of sodium hydroxide would have to be added to 150 mL of a 0.483 M hydrocyanic acid solution, in order to prepare a buffer with a pH of 9.030? moles An aqueous solution contains 0.477 M hypochlorous acid. How many mL of 0.257 M potassium hydroxide would have to be added to 125 mL of this solution in order to prepare a buffer with a pH of 7.040? mL Acid Formula Kal Ка? | Каз Acetic acid...
i need help on both
LUIUS. Question Completion Status: QUESTION 21 A 35.0 mL sample of 0.180 M benzoic acid is titrated with a 0.180 M NaOH solution. What is the pH at the equivalence point? The Ka of benzoic acid is 6.3 10-5 11.20 9.80 4.20 08.58 7.00 QUESTION 22 A 25.0-ml sample of 0.150 M hydrocyanic acid (HCN) is titrated with a 0.150 M NaOH solution. What is the pH after 13 ml NaOH has been added? The...
Question 21 (1 point) How many moles of chloride ions are present in a 120.0 mL solution of CaCl, that has a concentration of 0.290 M? Your Answer: Answer units Question 22 (1 point) What is the concentration (in M) of a solution that was prepared by dissolving 28.175 g of NaOH in a 350.0 mL solution? Your Answer:
Question 1 (2 points) How many moles of KHP are contained in a sample of 4.656 g KHP (Molar Mass = 204.22 g/mol)? 0.0228 moles KHP 0.0656 moles KHP 4656 moles KHP 0.0114 moles HD Question 2 (2 points) If the reaction between KHP and NaOH is: C8H.KOH + NaOH - H2O + CHAKO Na (KHP) How many moles of NaOH are needed to react with 4.656 g of KHP?! 0.0656 moles NaOH 0.0228 moles NaOH 0.0114 moles NaOH 4.656...
Top question.
P1. (Sec. 16.2) What is the pH of a solution prepared by adding 0.45 moles of formic acid HCO2H, and 0.40 moles of sodium formate, NaCO,H, in enough water to make a 1.0-liter solution? (Formic Acid: K 1.81 10-) a) 4.32 b) 3.69 c) 5.52 d) 7.32 e) 9.11 P2. (Sec. 16.2) What is the pH of a solution prepared by adding 100 mL of a 0.25 M solution of sodium acetate, NaC2H,O2, into 110 mL of 0.30...
WS #7 3) To the buffer prepared in Question 2 is added 75.0mL a 0.375 M HCl solution. What is the resulting buffer? cgpts) рное the 4) The buffer capacity is reached when the pH of the buffer shifts by 1.00pH unit. What volume of a 1.OOM NAOH Solution would need to be added (fresh) MOAB-H/M DAB-Na solution to reach this point? (&pts 5) 1.486 g of an unknown acid is dissolved in 25.00 mL of water. It is titrated...
Question 8 (1 point) If there is 1.0 mole of HCN and 1.0 mole of NaCN in a 100.0 ml aqueous solution and then 0.1 mole of HCl is added what happens? Please make sure to mark all of the correct responses. The number of moles of HCN will increase. The number of moles of HCN will decrease. The number of moles of CN will increase. The number of moles of CN will decrease. The pH will increase. The pH...
Question 1 (1 point) ✓ Saved What is the pH of a solution with 4.62 mL of 0.04 M KOH is added to 9.24 mL of 0.04 M HNO2 ? (Kg - 4.6 x 10-4)
NEED help with these questions
Question 1 (1 point) Saved The Ksp of PbCl2 is 1.2 x 10-5. What is its molar solubility? 0.72M 1.32M 0.0023 M 0.0022 M 0.018 M 0.12 M 0.014 M 0.0017 M Question 2 (1 point) Saved MacBook Cquivalent point pH, 8.72 pH ONWAOO! IT 0+TT 0 5 10 15 20 25 30 35 40 45 50 Volume of 0.100 M NaOH added (mL) For the titration curve above, what is the Ka of the...
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