Home
Class 11
CHEMISTRY
Aqueous solution of phosphoric acid with...

Aqueous solution of phosphoric acid with a density of `1 g mL^(-1)` containing 0.05% by weight of phosphoric acid is used to impart taste to many soft drinks.
What is the molarity of phosphoric acid used in soft drinks ?

A

`5.1 xx 10^(-3)`

B

`1.5 xx 10^(-3)`

C

`3.1 xx 10^(-3)`

D

`2.1 xx 10^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
A
`(0.05)/(100) xx 1 xx (1000)/(98) = 5.1 xx 10^(-3)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CHEMICAL AND IONIC EQUILIBRIUM

    BRILLIANT PUBLICATION|Exercise Level - III (Linked Comprehension Type Questions)|1 Videos

  • CHEMICAL AND IONIC EQUILIBRIUM

    BRILLIANT PUBLICATION|Exercise Level - III (Statement Type)|6 Videos

  • CHEMICAL BONDING

    BRILLIANT PUBLICATION|Exercise LEVEL-III ( Linked Comprehension Type )|12 Videos

Similar Questions

Explore conceptually related problems

The dissociation of weak electrolyte (weak acid) is expressed in terms of Ostwald dilution law. Stronger is the acid, weaker is its conjugate base. The dissociation constants of an acid (K_(a)) and its conjugate base (K_(b)) are related by the given relation : K_(w) = K_(a) xx K_(b) At 25^(@)C, K_(w) (Ionic product of water ) = 10^(14) . Phosphoric acid is a weak acid. it is used in fertilizer, food, detergent and toothpaste. Structure of phosphoric acid is : (pK_(a1) = 2.12, pK_(2) = 7.21 , pK_(a3) = 12.32) Aqueous solution of phosphoric acid with a density of 1 g mL^(-1) containing 0.05% by weight of phosphoric acid is used to impart taste to many soft drinks. Phosphate ion is an interfering radical in qualitative analysis. It should be removed for analysis beyond third group of qualitative analysis. Which among the following relations is correct ?

20 mL' of '0.02 M KMnO4' was required to completely oxidise 10mL' of oxalic acid solution. What is the molarity of oxalic acid solution?

Knowledge Check

  • At 25^(@)C , at 5% aqueous solution of glucose (molecular weight = 180 g mol^(-1) ) is isotonic with a 2% aqueous solution containing and unknown solute. What is the molecular weight of the unknown solute ?

    A
    60
    B
    80
    C
    72
    D
    63

  • 0.2 molal aqueous solution of acid HX is 20% ionised. K_f="1.86 K molal"^(-1) . The freezing point of the solution is very close to:

    A
    `-0.45^@C`
    B
    `-0.90^@C`
    C
    `-0.31^@C`
    D
    `-0.53^@C`

    • Similar Questions

    Explore conceptually related problems

    34.05 mL' of phosphorus vapour weighs '0.0625 g' at '546^degree C' and '0.1' bar pressure. What is the molar mass of phosphorus?

    HCl gas is passed into water, yielding a soultion of density 1.095 g mlL ^(-1) and containing 30% HCI by weight. Calculate the molarity of the solution.

    There are two types of fertilisers F_1 and F_2, F_1 consists of 10% nitrogen and 6% phosphoric acid and F_2 consists of 5% nitrogen and 10% phosphoric acid. After testing the soil conditions , a farmer finds that she needs atleast 14kg of nitrogen and 14kg of phosphoric acid for her crop. If F_1 costs Rs. 6/(kg) and F_2 costs Rs. 5/(kg) , determine how much of each type of fertiliser should be used so that nutrient requirements are met at a minimum cost , What is the minimum cost ?

    34.05 ml of phosphorus vapour weights. 0.0625 g at 546^@C and 1 bar pressure. What is the molar mass of phosphorus? (R = 0.083 atm//k//mol)

    A fruit grower can use two types of fertilizers in his garden , brand P and Q . The amounts (in kg ) of nitrogen , phosphoric acid , potash and chlorine in a bag of each brand are given in the table. Tests indicate that the garden needs atleast 240 kg of phosphoric acid , atleast 270 kg of potash and atmost 310 kg of chlorine. If the grower wants to minimise the amount of nitrogen added to the garden, how many bags of each brand should be used ? What is the minimum amount of nitrogen added in the garden ?

    An aqueous solution of 6.3 g of oxalic acid dihydrate is made up of 250 ml. The volume of 0.1 N NaOH required to completely neutralize 10 mL of this solution is

    Home
    Profile