Chemistry, 12.11.2019 15:31 zitterkoph
Achemist dissolved crystals of any known substance into water at room temperature he found that 33 g of the substance can be dissolved into 100 ml of water. what property of the unknown substance what the chemist most likely investigating?
a) it's solubility
b)it's rate of distribution
c) it's chemical reaction to water
d)it's reaction to temperature changes
Answers: 2
Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
Answers: 1
Chemistry, 22.06.2019 15:00
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
Answers: 2
Chemistry, 22.06.2019 16:10
Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)
Answers: 2
Chemistry, 23.06.2019 02:30
Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .
Answers: 2
Achemist dissolved crystals of any known substance into water at room temperature he found that 33 g...
Physics, 30.08.2021 06:20
English, 30.08.2021 06:20
Social Studies, 30.08.2021 06:20
English, 30.08.2021 06:20
Mathematics, 30.08.2021 06:20
Health, 30.08.2021 06:20
Mathematics, 30.08.2021 06:20
Chemistry, 30.08.2021 06:20
Mathematics, 30.08.2021 06:20
Engineering, 30.08.2021 06:20
Chemistry, 30.08.2021 06:20