Chemistry, 11.09.2019 05:30, AleciaCassidy
4. a student purified a 500-mg sample of phthalic acid by recrystallization from water. the published solubility of phthalic acid in 100 ml of water is 0.54 g at 14 oc and 18 g at 99 0c. (a) what is the smallest volume of boiling water the student could use to dissolve 500 mg of phthalic acid?
Answers: 3
Chemistry, 21.06.2019 20:30, notkeandre9
9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water
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Chemistry, 22.06.2019 10:30, shaylawaldo11
Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?
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Chemistry, 22.06.2019 12:30, Svetakotok
Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
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4. a student purified a 500-mg sample of phthalic acid by recrystallization from water. the publishe...
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