Home
Class 9
CHEMISTRY
Convert into moles: (i)20g of water (...

Convert into moles:
(i)20g of water (ii)20g of carbon dioxide

Text Solution

Verified by Experts

Gram molar mass of water `(H_(2)O)=(2xx1+16)=18g`
18g of watwer represent moles =1mol
20g of water represent moles `=((20g))/((18g))xx(1"mol")=1.11"mol"`
(ii) Gram molar mass of carbon dioxide `(CO_(2))=(12+2xx16)=44g`
44g of carbon dioxide represent moles =1mol
20g of carbon dioxide represent moles=`=((20g))/((44g))xx(1"mol")=0.45"mol"`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ATOMS AND MOLECULES

    DINESH PUBLICATION|Exercise LONG ANSWER|16 Videos

  • ATOMS AND MOLECULES

    DINESH PUBLICATION|Exercise HOTS|5 Videos

  • ATOMS AND MOLECULES

    DINESH PUBLICATION|Exercise VERY SHORT ANSWER QUESTIONS|39 Videos

  • IS MATTER AROUND US PURE

    DINESH PUBLICATION|Exercise LAQs|10 Videos

Similar Questions

Explore conceptually related problems

Convert into moles (a) 12g of oxygen gas (b) 20g of water.

Convert into mole : (a) 28 g of nitrogen atoms (b) 20 g of carbon dioxide

Convert into moles : (a) 12 g of oxygen gas (b) 20 g of water (c ) 22 g of carbon dioxide (Atomic masses : O = 16 u, H = 1 u and C = 12 u )

Convert into mole. (a) 12 g of oxygen gas (b) 20 g of water (c) 22 g of carbon dioxide.

Convert into mole. (a) 12 g of oxygen gas (b) 20 g of water (c) 22 g of carbon dioxide

0.3g of a compound on combustion gave 0.54g of water and 0.88g of carbon dioxide. Find the percentage of carbon and hydrogen in the compound

8.4 g of sodium bicarbonate on reaction with 20 g of acetic acid liberated 4.4 g of carbon dioxide gas into the atmosphere. What is the mass of the residue left?

Calculate the volume of STP occupied by (i) 14 g of nitrogen, (ii) 1.5 moles of carbon dioxide and (iii) 10^(21) molecules of oxygen.

Calculate the volume occupied at NTP by (i) 2.5 mole of carbon dioxide (ii) 14 g of nitrogen gas.

Calculate the volume occupied at NTP by (i) 2.5 mole of carbon dioxide (ii) 14 g of nitrogen gas

Home
Profile