Which one of the following mixtures is a buffer solution?
0.40 M HCN and 0.10 KCN |
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0.20 M CH3COOH |
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1.0 M HNO3 and 1.0 M NaNO3 |
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0.10 M KCN |
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0.50 M HCl and 0.10 NaCl |
Which one of the following mixtures is a buffer solution? 0.40 M HCN and 0.10 KCN...
which one of the following is a buffer solution? a) 0.40 M HCN and 0.10 KCN b) 0.20 CH3COOH c) 1.0 M HNO3 and 1.0 NaNO3 d) 0.10 M KCN e) 0.50 M HCl and 0.10 NaCl
A 1.0 L buffer solution has 0.15 mol L-'HCN and 0.60 mol L-1 KCN. The K, of HCN is 4.9 X 10-10. Which action will destroy the buffer? A. Add 0.50 mol HCN to the buffer. B. Add 0.50 mol KCN to the buffer. C. Add 0.50 mol HCl to the buffer. D. Add 0.50 mol KOH to the buffer. E. More than one of the above will destroy the buffer. (Hint: write some chemical equations & use stoichiometry!)
Which of the following mixtures will result in a buffer solution? I: 300 mL of 0.20 M HClO2 added to 100 mL of 0.40 M NaClO2 II: 100 mL of 0.40 M NaOH added to 200 mL of 0.20 M HClO2 III: 200 mL of 0.10 M HCl added to 300 mL of 0.20 M NaClO2
Which of the following aqueous mixtures will result in a buffer? X. 0.20 mol CH3COOH + 0.10 mol CH3COONa in 1.00 L solution Y. 0.20 mol NaOH + 0.20 mol NaCl in 1.00 L solution Z. 0.20 mol CH3COOH + 0.20 mol CH3COONa in 1.00 L solution
Which of the following aqueous mixtures will result in a buffer? X. 0.20 mol CH3COOH + 0.10 mol CH3COONa in 1.00 L solution Y. 0.20 mol NaOH + 0.20 mol NaCl in 1.00 L solution Z. 0.20 mol CH3COOH + 0.20 mol CH3COONa in 1.00 L solution
34/35 A buffer solution is made that is 0.411 M in HClO and 0.411 M in Nacio. If K, for HCIO is 3.50 x 10-8, what is the pH of the buffer solution? pH = Write the net ionic equation for the reaction that occurs when 0.122 mol KOH is added to 1.00 L of the buffer solution. (Use the lowest possible coefficients. Omit states of matter.) A buffer solution is made that is 0.365 M in HCN and 0.365...
Which of the following aqueous mixtures would be a buffer system? OH2SO4, CH3COOH O HCl, NaCl O NH3, NaOH HNO3, NaNO3 OH3PO4, H2PO4 ave int ass dict y Please click somewhere on the bar below to indicate your level of confidence with Not at all Confident Very Confident redictes Confidence level: N/A
Which of the following solutions is a good buffer system? Question 8 Unanswered Which of the following solutions is a good buffer system? a solution that is 0.10 M HNO3and 0.10 M NaNO3 a solution that is 0.10 M LIOH and 0.10 M HNO3 a solution that is 0.10 M HCN and 0.10 M С LICN a solution that is 0.10 M HCN and 0.10 M NaBr a solution that is 0.10 M NaCl and 0.10 M HC E B...
Which pair of compounds will form a buffer in aqueous solution? HCN and NaCN HCl and NaOH NaCN and NaOH HCN and HCl HCl and NaCl NaCN and KCN
A buffer solution is 0.392 M in HCN and 0.206 M in KCN. If K, for HCN is 4.0x1010, what is the pH of this buffer solution?