Home
Class 11
CHEMISTRY
1000g of a water sample contained a calc...

1000g of a water sample contained a calcium salt equivalent to 1g of `CaCO_3`. The hardness of that water sample is

A

100 ppm

B

500 ppm

C

1000 ppm

D

20,000 ppm

Text Solution

Verified by Experts

The correct Answer is:
C
Hardness = `("solute weight")/("solution weight") xx 10^6`
` = 1/1000 xx 10^6 = 1000` ppm
Promotional Banner

Similar Questions

Explore conceptually related problems

1000g of a water sample contained a calcium salt equivalent to 18 of CaSO_(4) The hardness of that water sample is

pH of a water sample is tested with

10g of Calcium carbonate contains

50 ml of water sample requires 6 ml of soap solution to produce a good lather. 1 ml of soap solution is equal to 0.001 g of CaCO_3 . Then the degree of hardness of water is

Which water sample is colourless?

Degree of hardness of a water sample is 100ppm. 50 ml of standard soap solution is added to one kilogram of hard water sample. Calculate the degree of hardness of the resulting water sample. (one ml of soap solution is 0.001 g CaCO_3 ).

A hard water sample contains dissolved Mg(HCO_3)_2 only. If degree of hardness of that sample is 150ppm, calculate the weight of Mg(HCO_3)_2 present in 1kg of water sample.

A hard water sample contains magnesium bicarbonate only. 100 ml of the hard water sample requires 10 ml. of standard soap solution (1 ml soap solution = 1 mg CaCO_3 ) to get good lather. Find out of the weight of Ca(OH_2) to be added to 10 Kg water sample to make it soft water.

The purest sample of water, is____

A hard water sample contains calcium chloride only degree of hardness with 200 ppm. Calculate the weight of calcium chloride present in 10 kg of water sample.