Didiquake Didiquake

01-07-2017
Chemistry

contestada

What is the mass, in grams, of a sample of 1.72 × 1023 atoms of potassium (K)?

Respuesta :

LeChatNoir LeChatNoir

01-07-2017

6,02×10²³ ------ 39g
1,72×10²³ ------- X
X = (39×1,72×10²³)/6,02×10²³
X = 11,143g K

Answer Link

Otras preguntas

The height h (in feet) above the water of a cliff diver is modeled by h=-16t^2+8t+80, where t is the time (in seconds). How long is the diver in the air?

The height of a rhombus is 5 cm. The area is 20 cm². a) Find the measure of the base \ b) Find the perimeter of the rhombus

What is the volume of the figure? A. 75 cubic units B. 125 cubic units C. 375 cubic units D. 750 cubic units

Two triangles are similar. The dimensions of the first are 7, 8, and 10, while the dimensions of the second one are 3.5, 4, and 5. The scale factor used to get

what is 0.2% as a decimal and a fraction

help asap 1. Do you think evolution is still taking place in the Galapagos finches? Why or why not? 2. Discuss whether or not human activities lead to speciati

Before Grant could capture Richmond, he first had to defeat Confederate forces in _____. a) Petersburg b) Fredericksburg c) Gettysburg d) Vicksburg

How are proteins made

What is the exact volume of a sphere that has a radius of 7.5 ft? ___π ft3

what service did the byzantine empire perform for european civilization?