ebiondillo7893 ebiondillo7893

13-10-2017
Chemistry

contestada

What is the mass of 5.40×1021 platinum atoms?

Respuesta :

Kalahira Kalahira

23-10-2017

Moles = 4.81 x 10^21 / 6.02 x 10^23 =0.00799 Mass = 0.00897009966 mol x 195.08 g/mol = 1.74988704 grams = ~ 1.75 grams

Answer Link

Otras preguntas

if a triangle with angle measures 40,30.and 120 centimeters possible?

Solve and describe the steps used to find x for the equation 2(x + 4) – 10 = 12

Which sentence contains a punctuation error? A.We used one-half cup of chopped onions in the recipe. B.It will be chilly later, so bring your blue-green

how did Brazil get their independence

Select the best analogy. 25. orbis : circle :: A. pro : after B. re : again C. cavea : fall apart D. figura : decide

The equation below could be used to solve which of the following problems? 25 = (0.65) w Twenty-five is 65% of what number? What is 65% of 25? What percent is 2

which side did the us take in the border dispute between Great Britain and Venezuela A) Venezuela B) Great Britain C) They did not take a side D) They were ne

what is the degree of comparison of the underlined modifier Toby wave excitedly to us as we excited the taxi cab

A rock is classified as a

Compare and contrast the terms genotype and phenotype. Describe at least two ways that they are alike and two ways that they are different.