Particles to mole conversion competition
Convert particles into mol
Science
2 plays
5 questions
Question 1
Multiple Choice
10 points
Zinc (Zn) is used as a corrosion-resistant coating on iron and steel. It is also an essential trace element in your diet. Calculate the number of moles of zinc that contain 4.50 × 10^24 atoms.
A.2.98 mol of Zn
B.7.48 mol of Zn
C.18.9 mol of Zn
D.53.1 mol of Zn
Question 2
Multiple Choice
10 points
How many moles in 5.75 × 10^24 atoms Al ?
A.62.45 mol of Al
B.8.46 mol of Al
C.9.55 mol of Al
D.0.89 mol of Al
Question 3
Multiple Choice
10 points
How many moles in 2.50 × 10^20 atoms Fe ?
A.4.15× 10^-4 mol of Fe
B.8.9× 10^-6 mol of Fe
C.8.9× 10^-4 mol of Fe
D.4.15× 10^4 mol of Fe
Question 4
Multiple Choice
10 points
Identify the representative particle then convert the given number of representative particles to moles 3.75 × 10^24 C02
A.representative particle is ion , the answer is
6.23 mol CO2
B.representative particle is molecule , the answer is
6.23 mol CO2
C.representative particle is formula unit , the answer is
2.89 mol CO2
D.representative particle is atom , the answer is
7.23 mol CO2
Question 5
Multiple Choice
10 points
Identify the representative particle then convert the given number of representative particles to moles 3.58 × 10^23 ZnCl2
A.representative particle is formula ion , the answer is 0.459 mol ZnCl2
B.representative particle is molecule , the answer is 0.245 mol ZnCl2
C.representative particle is formula unit , the answer is 0.23 mol ZnCl2
D.representative particle is formula unit , the answer is 0.595 mol ZnCl2