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IrinaVladis [17]
2 years ago
12

How many grams are contained in 0.54 moles of calcium?

Mathematics
1 answer:
Vanyuwa [196]2 years ago
5 0

The number of grams present in 0.54 moles of calcium is; 22 g

We are given;

Number of moles; n = 0.54 moles

Now, Molar mass of calcium is;

M = 40.1 g

Formula for number of moles is;

n = m/M

Where;

n is number of moles

m is mass in grams

M is molar mass

Thus;

0.54 = m/40.1

m = 40.1 × 0.54

m = 21.654 g

Approximately m = 22 g

Read more at; brainly.com/question/5397233

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Answer:

(a) The probability of the intersection of events "man" and "yes" is 0.55.

(b) The probability of the intersection of events "no" and "man" is 0.10.

(c) The probability of the union of events "woman" or "no" is 0.45.

Step-by-step explanation:

The information provided is:

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Men       275   50     325

Women  150   25      175

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Thus, the probability of the intersection of events "no" and "man" is 0.10.

(c)

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