Answer:
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Based on the given molecular formula, the molar mass of ethylene glycol is 62 g/mol. We solve for the number of moles of the solute,
n = (7.1 kg)(1000 g/ 1 kg) / 62g/mol = 114.52 mol
Then, we divide this value by the given mass of the water in kg
m = (114.52 mol) / 1.2 kg = 95.43 m
Thus, the molality of the substance is approximately equal to 95.43 m.
Answer:
i believe it's c but I'm not one hundred percent sure
Explanation:
I believe the answer is B. a fruit falling from a tree
Answer:C
Explanation: Because the oldest fossils are in deeper layers