Molality Problems: Show work if possible! Will mark Brainliest if correct! (NEED ASAP!) tysm in advance :)
1. What is the molality of a solution in which 0.135 moles of CO2 is dissolved in 490mL of water? (1kg of water = 1L of water)
2. What is the molality of a solution in which 23g of NaCl are dissolved in 250g of water?
3. How many moles of HC1 are needed to prepare a 3m (3molal) solution with 1.5Kg of water?
Answers: 1
Chemistry, 22.06.2019 11:00
What is the molar mass of a gas that has density of 2.054 g/l
Answers: 2
Chemistry, 22.06.2019 14:30
What state of matter is ice a. liquid b. element c. solid d. gas
Answers: 1
Chemistry, 22.06.2019 20:20
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
Chemistry, 23.06.2019 00:40
To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.
Answers: 1
Molality Problems: Show work if possible! Will mark Brainliest if correct! (NEED ASAP!) tysm in adva...
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