Explain why the 0.10 mol L^-1 sodium hydroxide solution could not have been prepared by weighing...
Explain why the 0.10 mol L^-1 sodium hydroxide solution could not have been prepared by weighing out 1.00g sodium hydroxide, dissolving this in water and making up to 250 ml.
Homework Answers
Sodium hydroxide is available in the laboratories in the form of pellets and we know sodium hydroxide is moisture sensitive that is it can easily absorb water from the surrounding air and hence it is said to have hygroscopic nature. The exact weight of sodium hydroxide cannot be weighed. Also sodium hydroxide solution is not a primary standard solution as exact weight of it can not be measured due to its hygroscopic nature. Therefore exact 0.10M sodium hydroxide cannot be prepared by weighing 1gram of sodium hydroxide pellets and adding 250 mL of water as we cannot weight exact 1g of pellets. Hence we always standardize the sodium hydroxide solution by a weak acid.
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Explain why the 0.10 mol L^-1 sodium hydroxide solution could not have been prepared by weighing...
Explain why the 0.10 mol L -1 sodium hydroxide solution could not have been prepared by...
Explain why the 0.10 mol L -1 sodium hydroxide solution could not have been prepared by weighing out 1.00g sodium hydroxide, dissolving this in water and making up to 250 ml.
Explain why the 0.20 mol L -1 sodium hydroxide solution could not have been prepared by...
Explain why the 0.20 mol L -1 sodium hydroxide solution could not have been prepared by weighing out 2.00g sodium hydroxide, dissolving this in water and making up to 500 ml.
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A solution is prepared by dissolving 0.23 mol of formic acid and 0.27 mol of sodium formate in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the present in the buffer solution. The K, of formic acid is 1.8 x 10+ A formic acid B. sodium formate C water D. sodium E....
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