Podcast
Questions and Answers
Sodium ______ solution is standardized against a primary standard strong oxidizing agent.
Sodium ______ solution is standardized against a primary standard strong oxidizing agent.
thiosulfate
The reaction between potassium iodate and KI in ______ solution liberates I2.
The reaction between potassium iodate and KI in ______ solution liberates I2.
acid
The volume numbers of commercial hydrogen peroxide solutions correspond to the amount of available ______.
The volume numbers of commercial hydrogen peroxide solutions correspond to the amount of available ______.
H2O2
Commercial hydrogen peroxide is usually available as percent by weight or as ______-volume in aqueous solutions.
Commercial hydrogen peroxide is usually available as percent by weight or as ______-volume in aqueous solutions.
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A ______ solution is used to titrate the liberated I2.
A ______ solution is used to titrate the liberated I2.
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The ______ solution is prepared by weighing approximately 6.24 g of Na2S2O3.5H2O and dissolving in distilled water.
The ______ solution is prepared by weighing approximately 6.24 g of Na2S2O3.5H2O and dissolving in distilled water.
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Weigh 2 g of ______ into a 100 mL beaker.
Weigh 2 g of ______ into a 100 mL beaker.
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Transfer iodine solution to a 1 L ______ flask.
Transfer iodine solution to a 1 L ______ flask.
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Dissolve a single tablet in 200 mL of ______ water.
Dissolve a single tablet in 200 mL of ______ water.
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Cut a 100 g sample into small pieces and grind in a ______ and pestle.
Cut a 100 g sample into small pieces and grind in a ______ and pestle.
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Strain the juice through ______ to remove seeds and pulp.
Strain the juice through ______ to remove seeds and pulp.
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Add 10 mL portions of ______ water several times while grinding the sample.
Add 10 mL portions of ______ water several times while grinding the sample.
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The calculation of the weight of H2O2 per 1000 ml of the original or calculate the % H2O2 by weight in the original ______.
The calculation of the weight of H2O2 per 1000 ml of the original or calculate the % H2O2 by weight in the original ______.
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The reaction between KIO3 and KI, then the resultant I2 reacts with the ______;
The reaction between KIO3 and KI, then the resultant I2 reacts with the ______;
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The number of moles of I2 is equal to 3 times the number of moles of ______^-;
The number of moles of I2 is equal to 3 times the number of moles of ______^-;
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The volume numbers of commercial hydrogen peroxide solutions correspond to the amount of available ______ in the sample;
The volume numbers of commercial hydrogen peroxide solutions correspond to the amount of available ______ in the sample;
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The ______ reacts with KI, then the resultant I2 reacts with the thiosulphate;
The ______ reacts with KI, then the resultant I2 reacts with the thiosulphate;
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The solution of sodium ______ was standardized by dissolving 0.1210 g KIO3 in water adding a large excess of KI and acidifying with HCl;
The solution of sodium ______ was standardized by dissolving 0.1210 g KIO3 in water adding a large excess of KI and acidifying with HCl;
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