Mole to particles Competition
Convert Mole to praticles , atoms , molecues , ions and formula units
Science
7 plays
5 questions
Question 1
Multiple Choice
10 points
Zinc (Zn) is used to form corrosion -inhabiting surface on galvanied steel . Determine the number of Zn atoms in 2.5 mol of Zn
A.1.51 ×10^24 atoms
B.2.7 ×10^28 atoms
C.3.8 ×10^31 atoms
D.4.52 ×10^22 atoms
Question 2
Multiple Choice
10 points
Calculate the number of molecules in 11.5 mol of water
A.12.34 ×10^41 molecules
B.6.92 ×10^24 molecules
C.0.98 ×10^13 molecules
D.1.456 ×10^35 molecules
Question 3
Multiple Choice
10 points
Silver nitrate AgNO3 is usded to make several different halides used in photographic films . How many formula units of AgNO3 are there in 3.25 mol of AgNO3
A.0.92×10^14 formua units
B.2.89×10^34 formua units
C.5.78×10^13 formula units
D.1.96×10^24 formua units
Question 4
Multiple Choice
10 points
Calculate the number of oxygen atoms in 5.0 mol of oxygen molecules .Oxygen is diatomic moleucle.O2
A.7.02×10^18 atoms
B.3.01×10^24 atoms
C.6.02×10^24 atoms
D.6.02×10^36 atoms
Question 5
Multiple Choice
10 points
How many hydrogen atoms in 5 mol of methane molecue ?
A.4.56×10^23 atoms of hydrogen
B.1.2×10^25 atoms of hydrogen
C.3×10^24 atoms of hydrogen
D.3×10^22 atoms of hydrogen