subject
Chemistry, 21.01.2021 03:50 claudia122752

A sample of crushed rock is found to have 4.81 x1021 atoms of gold, how many moles of gold are present in this sample? 7.99 x 10^-3 moles

1.57 x10^-1 moles

1.25 x 10^3 moles

2.47 x10^5 moles

ansver
Answers: 3

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 02:00, officialgraciela67
What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?
Answers: 1
image
Chemistry, 22.06.2019 08:30, Crxymia
Name the element in group 17, period 2. (periodic table)
Answers: 3
image
Chemistry, 22.06.2019 14:30, Kiaraboyd9366
Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.
Answers: 1
image
Chemistry, 23.06.2019 02:50, igraha17
Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ
Answers: 2
You know the right answer?
A sample of crushed rock is found to have 4.81 x1021 atoms of gold, how many moles of gold are prese...

Questions in other subjects:

Konu
Mathematics, 14.01.2020 18:31