theofficialtrey theofficialtrey

16-06-2017
Chemistry

contestada

Calculate the number of molecules present in 3.50 mol FeO2.
A. 2.11 x 1024 molecules
B. 2.107 x 1023 molecules
C. 3.50 x 1023 molecules

can anyone help me with my chemistry final plssss and only serious ppl

Respuesta :

16-06-2017

3.5*(6.02*10^23)=2.107*10^24 molecules, so A

Answer Link

dakotaannett1 dakotaannett1

20-06-2017

if you do 3.50 x 6.022x10^23 it will equal 2.1077e+24which you will then round to 2.11e+23
so the answer is 2.11e+23

Answer Link

Otras preguntas

Which lines in the poem indicate its theme? A Shadow by Henry Wadsworth Longfellow I said unto myself, if I were dead, What would befall these children? What wo

Which situation results in a characteristic that is inheritable? (1) A limb is lost when two marine organisms fight. (2) A puppy learns to beg for foo

The three types of seismic waves produced by an earthquake or primary secondary and? A sedimentary B elastic C atmospheric D surface

Enlightenment concepts can be seen in the __________, a document that helped initiate the American Revolution

Which sentence uses commas correctly? A. In competitions, she often rides that horse a three-year-old palomino. B. Rhode Island, the smallest state in the U.S.,

Faced with famine, increased taxes, and rising discontent, Louis XVI called a meeting of the Estates-General. This was the first time this call had been issued

a salesperson receives a 2.5% commission on sales. what commission does the salesperson receive for $8000 in sales?

According to Li Si’s proposal, what was one way Shi Huangdi could control the people of China?

reasons why dropping the atomic bomb on japan an inappropriate action

If the volume for 3-D polyhedra A is 200 cm3 and the volume for 3-D polyhedral B is 800 cm3, how many times bigger is the volume of pyramid B than pyramid A? A.