Used to make roads
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 05:30
Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change
Answers: 2
Chemistry, 22.06.2019 11:30
If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood
Answers: 2
6
If the popcorn is not used it is either discarded or what? (Imin, 35se
Used to make roads
Used to make roads
Mathematics, 05.05.2020 09:08
Computers and Technology, 05.05.2020 09:08
English, 05.05.2020 09:08
Mathematics, 05.05.2020 09:08
Social Studies, 05.05.2020 09:08
Physics, 05.05.2020 09:08
Mathematics, 05.05.2020 09:08
Mathematics, 05.05.2020 09:08
Chemistry, 05.05.2020 09:08