Chemistry, 17.10.2020 22:01 ekmusicent4028
Question 5:
Two liquids A and B, are each poured into seperate 20 mL containers completely filling
them. You weigh both liquids and find that A has a mass of 15 grams and B has a mass
I
of 22.8 grams. When those liquids are put into the same container, one of them will
float on the other. Based on your knowledge of Density, which liquid will float on the
other?
Answers: 1
Chemistry, 22.06.2019 03:40, allyyzz
Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)
Answers: 3
Chemistry, 22.06.2019 05:30, nuclearfire278
Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease. correct answer for apex - a, its nonpolar end dissolves the grease.
Answers: 1
Chemistry, 22.06.2019 09:40, loveoneonly9153
Consider this initial-rate data at a certain temperature for the reaction described by
Answers: 1
Question 5:
Two liquids A and B, are each poured into seperate 20 mL containers completely filling<...
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