NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Expert Answers
ALL
Champ Jee
Subject: Chemistry
, asked on 6/4/18
Please! I am not understanding mole concept of this question. How if there are 2 atoms of hydrogen in H2SO4, then there are 2 moles of hydrogen atoms. Please explain from the basics.:
Q. Number of moles of H
2
SO
4
=394/98=4 moles
From the formula H
2
SO
4
we know that 1 molecule of H
2
SO
4
contains 2 atoms of H, 1 atom of S and 4 atoms of O.
Thus, 1 mol of H
2
SO
4
will contain 2 mol of H, 1 mol of S and 4 mol of O atoms.
Therefore, in 4 mol of H
2
SO
4
Number of moles of H= 2 x 4 =8
Number of moles of S= 1 x 4 =4
Number of moles of O= 4 x 4 =16
Answer
2
Champ Jee
Subject: Chemistry
, asked on 6/4/18
How many atoms are there in a 48 gram oxygen atom sample?
Answer
4
Champ Jee
Subject: Chemistry
, asked on 2/4/18
How and why boiling point depends upon the atmospheric pressure? I am not understanding the concept or reason behind it! Please explain.
Answer
3
Nidhi Baghel
Subject: Chemistry
, asked on 19/7/17
Nitrogen molecule (N2) has radius of about 0.2 nm. Assuming that nitrogen molecule is spherical in shape, calculate the volume of a single molecule of (N2) and the percentage of empty space in 1 mole of N2 gas at STP.
Answer
1
Nidhi Baghel
Subject: Chemistry
, asked on 19/7/17
Calculate the total and average kinetic energy of 32g of Methane molecules at 27 degree Celsius. (R = 8.314 JK^-1 mol^-1)
Answer
1
Abdullah Ansari
Subject: Chemistry
, asked on 19/4/20
Please explain in detail.
Answer
1
Shruti Patil
Subject: Chemistry
, asked on 4/4/20
Didn't understand question plz explain and solve
Answer
3
Shruti Patil
Subject: Chemistry
, asked on 4/4/20
What will be the correct option ??
Answer
1
Prathamesh Savardekar
Subject: Chemistry
, asked on 2/4/20
I am getting confused in the signs of work.pls tell me which is correct W= -PV or W= +PV. and how
Answer
1
Prathamesh Savardekar
Subject: Chemistry
, asked on 2/4/20
pls explain me how the given ans came
Answer
1
Champ Jee
Subject: Chemistry
, asked on 16/12/19
Q6.
How to find whether it is s or p orbital?
Answer
1
Arun
Subject: Chemistry
, asked on 8/12/19
Pls provide the ans of it
Answer
1
Arun
Subject: Chemistry
, asked on 25/11/19
Kindly provide the answer of this qn
Answer
1
Arun
Subject: Chemistry
, asked on 25/11/19
Pls solve the questions of 5 and 6
Answer
1
Arun
Subject: Chemistry
, asked on 23/11/19
Pls answer the follow
Answer
1
1
2
3
4
5
Next
What are you looking for?
Q. Number of moles of H2SO4=394/98=4 moles
From the formula H2SO4 we know that 1 molecule of H2SO4 contains 2 atoms of H, 1 atom of S and 4 atoms of O.
Thus, 1 mol of H2SO4 will contain 2 mol of H, 1 mol of S and 4 mol of O atoms.
Therefore, in 4 mol of H2SO4
Number of moles of H= 2 x 4 =8
Number of moles of S= 1 x 4 =4
Number of moles of O= 4 x 4 =16
How to find whether it is s or p orbital?