What is the mass, in grams, of 9.16×10^24 molecules of methanol (ch3oh)?

The mass in grams is 487.5 for methanol.

Explanation:

We must calcuate the grams of a compound through the molar mass of it.

Molar mass of methanol: 32.04 g/mol

We know that 1 mol has NA molecules and they weigh 32.04 g so, this is the rule of three we must make:

6.02x10²³ molecules 32.04 g

9.16x10²⁴ molecules (9.16x10²⁴ . 32.04) / 6.02x10²³  = 487.5 g

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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