A student prepared a stock solution by dissolving 20.0 g of NaOH in enough water to make 150 mL of solution. She then took 15.0 mL of the stock solution and diluted it
with enough water to make 65.0 mL of a final solution. What is the concentration of NaOH for the final solution?
0.769 M
O 0.548 M
1.82 M
1.40 M

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

your answer is c) plasma

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