Chemistry, 24.05.2021 17:50 abbieT6943
hola todos que tengan un lindo día mi hijo quiere saber esta respuesta se lo daría yo pero tengo mucho trabajo y bueno se los dejo a ustedes espero que se lo respondan bien, muchas gracias que tengan buenos días como dije antes saludos
Answers: 2
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 14:50, alexabbarker9781
How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.
Answers: 1
Chemistry, 23.06.2019 02:00, FailingstudentXD
Calculate the molarity of each aqueous solution: a. 78.0 ml of 0.240 m naoh diluted to 0.250 l with water b. 38.5 ml of 1.2 m hno3 diluted to 0.130 l with water
Answers: 1
hola todos que tengan un lindo día mi hijo quiere saber esta respuesta se lo daría yo pero tengo muc...
Mathematics, 17.12.2020 18:20
Mathematics, 17.12.2020 18:20
Mathematics, 17.12.2020 18:20
Mathematics, 17.12.2020 18:20
Mathematics, 17.12.2020 18:20