1800-150-456-789
FlagBACK
Flag Botany> Which of the following contain same numbe...
question mark

Which of the following contain same number of atoms as in 20g of calcium?A. 24g of magnesiumB. 12g of carbonC. 8g of oxygen gasD. 16g of oxygen atom

Mahima Bhat , 7 Years ago
Grade 11
anser 1 Answers
Arun

Last Activity: 7 Years ago

we have to find how many moles of calcium is present in 20 g of it. From the Periodic table, the relative atomic mass of calcium is 40.1. 

No. of moles of calcium = 20/40.1 = 0.49875 moles  = 0.5 mole
 
Now
Find only moles in every case. If moles are same then ni of atoms will be same also.
 
Regards
Arun (askIITians forum expert)

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

Other Related Questions on botany

question mark
Which of the following compound is produced when ethano (C5H5Oh ) is dehyrated
botany
0 Answer Available

Last Activity: 2 Years ago

question mark
What is the difference between ovary and ovule culture, what are their advantages and disadvantages
botany
1 Answer Available

Last Activity: 2 Years ago

question mark
botany
0 Answer Available

Last Activity: 2 Years ago

question mark
What is Glycolessis ? Explain about Glycolessis and what it's part and functions
botany
0 Answer Available

Last Activity: 3 Years ago

question mark
pls anwernnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
botany
0 Answer Available

Last Activity: 3 Years ago