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A sample of sea water contains 5 xx 10 ^...

A sample of sea water contains `5 xx 10 ^(-3)g `of dissolved oxygen in 1 kg of the sample. The concentration of `O_(2)` in that sea water sample in ppm is

A

`5 xx 10 ^(-4)`

B

`5 xx 10 ^(-3)`

C

`5 xx 10 ^(-2)`

D

`5 xx 10 ^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
Given, `10 ^(3) g (1kg)` smaple conains oxygen
`= 5 xx 10 ^(-3) g `
`therefore 10 ^(8) g` sample will contin oxyen.
`=( 5 xx 10 ^(-3))/(10 ^(3) g ) xx 10 ^(6) g = 5 p pm`
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