littlemisshelper littlemisshelper

Today at 5:21 AM
Mathematics

Answered

Strontium-90 has a half-life of about 28 years. After 112 years, how many grams of a 50 g sample will remain?
a. 3.125 g
b. 6.25 g
c. 12.5 g
d. 42.0 g

Answer :

Аноним Аноним

Today at 5:26 AM

112 = 4 * 28 so the factor is (1/2)^4 = 1/16
Number of grams remaining = 50 * 1/16 = 3.125

Its a

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rodriannah192 rodriannah192

Today at 5:26 AM

Answer:

3.125G

Step-by-step explanation:

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