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Priya Kumari

May 14, 2015



Tushara

Apr 18, 2014



Shivam balla

May 9, 2015

#### A solution of glucose in water is labeled as 10% w/w, what would be the molality and molarity of the solution. Density of solution is 1.2 ml-1



10%w/w solution of glucose in water means 10 g of glucose present in 100g of solution.
Therefore, Mass of glucose is 10g

Tushara

Apr 18, 2014



Tushara

Apr 19, 2014



5666.6743

Vineet Chauhan

Apr 20, 2015



Sagar Rachchh

Oct 15, 2014

#### Q=  EXPLAIN  limiting  reagent   i  didnt  understand  these  at  all......and  plzzzzzzzz   give  numericle  based  on  these  so  i  can  directly  prepare??  n  plzzzzz   give  solved  numericle  based  on  these  with  proper  explaination  at  each  step?



The reactant which is present in lesser amount is called limiting reagent
Limiting reagent limits the participation of other reactant which is in excess in the reaction.
Example:50 kg N2

Tuba

May 16, 2014

#### 4 liters of water are added to 2L of 6 molar HCl solutions. what is the molarity of resulting solution ?



Ans: Initial Volume = 2 liters
Number of moles (n) = 6
Number of moles (n) = weight/gram molecular weight
Gram Molecular weight of HCl = 1+ 35.5 = 36.5 grams
Number of moles (n) = We...

Manoj Roy

Mar 26, 2015



Given data:

Tuba

May 16, 2014

#### calculate the mass percentage composition of copper pyrites( CuFeS2).



Ans: Let the number of moles of given copper pyrite (CuFeS2) = 1
Every 1 mole of copper pyrite contains 2 moles of Sulphur and 1 mole of each of Copper and Iron.
Gram molecular weight of 1 mole of...

Priya Kumari

May 14, 2015



Tushara

Apr 18, 2014



Shivam balla

May 9, 2015

#### A solution of glucose in water is labeled as 10% w/w, what would be the molality and molarity of the solution. Density of solution is 1.2 ml-1



10%w/w solution of glucose in water means 10 g of glucose present in 100g of solution.
Therefore, Mass of glucose is 10g

Tushara

Apr 18, 2014



Tushara

Apr 19, 2014



5666.6743

Vineet Chauhan

Apr 20, 2015



Sagar Rachchh

Oct 15, 2014

#### Q=  EXPLAIN  limiting  reagent   i  didnt  understand  these  at  all......and  plzzzzzzzz   give  numericle  based  on  these  so  i  can  directly  prepare??  n  plzzzzz   give  solved  numericle  based  on  these  with  proper  explaination  at  each  step?



The reactant which is present in lesser amount is called limiting reagent
Limiting reagent limits the participation of other reactant which is in excess in the reaction.
Example:50 kg N2

Tuba

May 16, 2014

#### 4 liters of water are added to 2L of 6 molar HCl solutions. what is the molarity of resulting solution ?



Ans: Initial Volume = 2 liters
Number of moles (n) = 6
Number of moles (n) = weight/gram molecular weight
Gram Molecular weight of HCl = 1+ 35.5 = 36.5 grams
Number of moles (n) = We...

Manoj Roy

Mar 26, 2015



Given data:

Tuba

May 16, 2014

#### calculate the mass percentage composition of copper pyrites( CuFeS2).



Ans: Let the number of moles of given copper pyrite (CuFeS2) = 1
Every 1 mole of copper pyrite contains 2 moles of Sulphur and 1 mole of each of Copper and Iron.
Gram molecular weight of 1 mole of...

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