eyesoffreedomowi3pl eyesoffreedomowi3pl

12-03-2019
Chemistry

contestada

Nitrogen has a half life of 10 days. If you have a 75 gram sample how much is remaining after 20 days ?

Nitrogen has a half life of 10 days If you have a 75 gram sample how much is remaining after 20 days class=

Respuesta :

ChemBen ChemBen

23-03-2019

There is 9.375 g of nitrogen. This is because when a half-life passes, the mass becomes 2 times less. Since two half-lives have passed, you need to divide by 4.

Answer Link

Otras preguntas

Joe borrowed $8,000 on a one year note at 13%. How much will Joe owe when the note comes due? 1040 wasn't right.

Find the approximate value of the circumference of a circle with the given radius. Use = 3.14. Round your results to one more decimal than in the given radius.

two supplementary angles have measures of 9x degrees and 3x degrees. What is the measure of the longer angle?

Evaluate the numerical expression.− 5/2− (− 1/3 )

Compare and contrast the curl-up and arm hang test and explain why different tests cannot be used interchangeably.

describing Keats’s accomplishments despite facing death at a young age.

Which of the following problems do immigration and emigration pose for demographers? a. Demographers must provide for more city services. b. Demographers cann

The length of a social media interaction is normally distributed with a mean of 3 minutes and a standard deviation of .4 minutes. what is the probability that a

Is there a series of rigid transformations that could map ΔQRS to ΔABC? If so, which transformations could be used? A No, ΔQRS and ΔABC are congruent but ΔQRS c

By default, a windows process contains one thread with four components: a unique identifier, the contents of a volatile set of registers indicating state, two s