Chemistry, 12.09.2019 04:30 fathimasaynas2975
A1.2516 gram sample of a mixture of caco3 and na2so4 was analyzed by dissolving the sample and completely precipitating the ca as cac2o4.the cac2o4 was dissolved in sulfuric acid and the resulting h2c2o4 was titrated with a standard kmno4 solution. the titration required 35.62 milliliters of 0.1092 m kmno4.calculate the number the number of moles of h2c2o4 that reacted with the kmno4.calculate the number of moles of caco3 in the original sample. calculate the percentage by weight of caco3 in the original sample.
Answers: 1
Chemistry, 22.06.2019 05:00, happy121906
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Chemistry, 22.06.2019 11:00, bigwaYne
Imagine that twenty i. u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?
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Chemistry, 22.06.2019 14:30, Cartucho1978
According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.
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A1.2516 gram sample of a mixture of caco3 and na2so4 was analyzed by dissolving the sample and compl...
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