Home
Class 11
CHEMISTRY
A litre of sea water weighing about 1.05...

A litre of sea water weighing about `1.05 kg` contains 5 mg of dissolved oxygen `(O_(2)).` Express the concentration of dissolved oxygen in ppm.

Text Solution

Verified by Experts

`("mass of dissolved solid")/("Mass of water") xx 10 ^(6)`
` ( 5xx 10 ^(-3) g)/(1. 05 xx 10 ^(3) g )xx 10 ^(6) = 4.76 ppm`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (CHOOSE THE CORRECT ANSWER)|20 Videos

  • SOLUTIONS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED -MATCH THE FOLLOWING|5 Videos

  • SOLUTIONS

    FULL MARKS|Exercise TEXTUAL EVALUATION SOVED - LONG ANSWER QUESTIONS|10 Videos

  • SAMPLE PAPER-8

    FULL MARKS|Exercise Part-IV|10 Videos

  • SOLVED PAPER 03

    FULL MARKS|Exercise PART-IV|10 Videos

Similar Questions

Explore conceptually related problems

50 ml of tap water contains 20 mg of dissolved solids. The TDS value in ppm is ……………

The Henry's Law constant for oxygen dissolved in water is 4.34 xx 10 ^(4)atm ( mol /L) at 25^(@) C . If the partial pressure of oxygen in air is 0.2 atm under ordinary atmospheric condition calculate the concentration (in mol/litre ) of dissolved oxygen in water equilibrium with air at 25^(@) C

A tank initially contains 50 litres of pure water. Starting at time t = 0 a brine containing with 2 grams of dissolved salt per litre flows into the tank at the rate of 3 litres per minutes. The mixture is kept uniform by stirring and the well - stirred mixture simultaneously flows out of the tank at the same rate. Find the amount of salt present in the tank at any time t gt 0 .

The given graphs shows the productivity of an aquatic ecosystem measured in terms of dissolved oxygen produced and consumed by green plants and photosynthetic algae where PS=photosynthesis and R=respiration. What will happen during algal bloom? 1. PS will be increase, R will be decreased 2. PS will be decreased, R will be increased. 3. PS and R will not change. 4. PS+R will increase.

Read the following statements and select the correct option. Statement 1 : BOD represents the amount of dissolved oxygen that would be consumed if all the organic matter in one litre of water were oxidised by microorganisms. Statement 2 : High value of BOD indicates that water is highly polluted by organic matter.