kelseyyraee kelseyyraee

01-11-2016
Chemistry

contestada

How many milligrams remain of a 15.0 mg sample of radium-226 after 6396 years? The half life of radium-226 is 1599 years.

Respuesta :

kaity0001 kaity0001

01-11-2016

There are 4 half lives of radium-226 in 6396 years. 15.0 divided by half 4 times (15.0/2= 7.5, 7.5/2 = 3.75, 3.75/2 = 1.875) equals 1.875 mg of radium-226.

Answer Link

Otras preguntas

What was different about the French and Indian War with respect to the other European wars between 1688 and 1748

What type of sound device is most appropriate in lines 1-4 of Lewis carolls poem jabberwocky

Since YouTube first became available to the public in mid-2005, the rate at which video has been uploaded to the site can be approximated by v(t) = 525,600(0.42

how many months have 28 days in it

Witch section of an essay restates the thesis statement

What causes the change of seasons on earth? a. the changes in prevailing wind patterns at different latitudes b. the distribution of precipitation influenced

The Figure Shows a curve C and a contour map of a function whose gradient is continuous. Integral in region C Nabla F dot dr

Maple Grove wants to include two typesof maple trees, the namesake of thecity, for their parks. Two varieties ofmaple trees have been selected. Onevariety costs

The context of a piece of writing is the A. environment in which it was written. B. denotative meaning of its language. C. author’s ideas about a specific topic

Stupas were best described as what