SAT, 06.05.2020 00:27 bbix420

HELPPP PLZ
Determine the number of carbon atoms in each of the following organic molecules:

- pentene
- 2-methylhexane
- 3-methy, 4-ethyloctane

57. (3 points) Calculate the molarity of a saline solution prepared by dissolving 74.8 g of sodium chloride in 750 mL of water. You must show all work to receive credit for this problem.

58. (3 points) Calculate the pH of a solution that has [OH-] = 1 x 10-12. Is this solution an acid or a base and how do you know? You must show all work to receive credit for this problem.

59. (5 points) Answer each of the following about gas laws.

Which gas law would you use to calculate the new pressure for a gas in a sealed can when the temperature of the trapped gas changes while volume remains constant? (1 point)

What is important to remember about the temperature unit for any gas law calculation? (1 point)

A sealed balloon containing 338 mL of carbon dioxide gas is in a freezer at -21oC. The balloon is then moved to the interior of a car that has been sitting in the summer sun and is at 71oC. Assuming the balloon remains sealed and the pressure is constant between the two locations, calculate the volume of the gas in the balloon after it has been moved to the interior of the car. You must show all work to receive credit for this problem. (3 points)

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HELPPP PLZ
Determine the number of carbon atoms in each of the following organic molecules:

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