The only positive ion found in an aqueous solution of sulfuric acid is the
(1) hydroxide ion (...
Chemistry, 29.09.2019 09:30 pastormac2011
The only positive ion found in an aqueous solution of sulfuric acid is the
(1) hydroxide ion (3) sulfite ion(2) hydronium ion (4) sulfate ion
Answers: 2
Chemistry, 21.06.2019 15:20
Both 1,2âdihydronaphthalene and 1,4âdihydronaphthalene may be selectively hydrogenated to 1,2,3,4âtetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.
Answers: 2
Chemistry, 22.06.2019 03:40
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 08:30
How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same
Answers: 2
Chemistry, 22.06.2019 22:00
Imagine one batch of soup (batch âaâ) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch âbâ) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.
Answers: 2