Question

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Answer 1

Answer:

A violin string vibrates with fundamental frequency of 220 Hz. The frequency of first overtone is A 440 Hz (B) 420 Hz © 410 Hz D 400 Hz

Explanation:

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Answer 2

Answer:

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Compound A has a solubility of 18 grams per 100. grams of water at 25*C. Cooling a saturated 200. gram solution of a compound A from 84*C to 25*c results in a precipitation of 22 grams of the compound. Calculate the solubility of compound A at 84 *C