Chemistry, 24.11.2019 22:31 jadenjohnson89
A2.350×10−2 m solution of nacl in water is at 20.0∘c. the sample was created by dissolving a sample of nacl in water and then bringing the volume up to 1.000 l. it was determined that the volume of water needed to do this was 999.4 ml . the density of water at 20.0∘c is 0.9982 g/ml. part a: calculate the molality of the salt solution. part b: calculate the mole fraction of salt in this solution. part c: calculate the concentration of the salt solution in percent by mass. part d: calculate the concentration of the salt solution in parts per million.
Answers: 3
Chemistry, 22.06.2019 14:50
Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape
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Chemistry, 22.06.2019 17:30
What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.
Answers: 1
A2.350×10−2 m solution of nacl in water is at 20.0∘c. the sample was created by dissolving a sample...
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