tiffy9066 tiffy9066

03-05-2018
Chemistry

contestada

The half-life of cobalt-60 is 5.20 yr. how many milligrams of a 2.000-mg sample remain after 10.50 years?

Respuesta :

mkryukova19 mkryukova19

03-05-2018

final amount =initial anount *(1/2)^(t/half life)

final amount =2.000 mg *(1/2)^(10.5/5.20) = 0.493 mg remain after 10.5 years

Answer Link

Otras preguntas

15 points, helppp please

A cyclist set out from a town P on a bearing of to a town Q, 5 km away. He then moves on a bearing of to a town R, 6km from Q.1. Represent the information on

A new computer loses 1/2 of its value every year. Which graph could represent the relationship between the year and the computer’s value? SOMEONE HELP PLS, YOU’

Solve f (9) for f(x) = -13 + 2x ƒ(9) = [?]

According to the ilo, how many people are working by force or under coercion? a. 123,000 b. 1.23 million c. 12.3 million d. 123 million

60 points and brianlest help

If any of the underlined segments has an error, select the answer option that IDENTIFIES the error. If no segments have an error, select "No error." Bill, who h

what are the least common denominators for 4 and 6

What needs to happen in order for an amendment to be added to the Constitution? The president has to declare a vote. The judicial branch has to declare a law

After picking up several staples with the device, what change would enable tony to drop the staples in the scrap metal bin? removing the battery removing the ir