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(3) (b) The mean concentration of red blood cells in an adult is 5.5 × 106 cells per mm3 1 mm3 = 0.000001 dm3 Calculate the mean number of red blood cells in 1 dm3 Give your answer in standard form.

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Histrionicus

Answer:

The correct answer is - 5.5*10^12 cells per dm^3

Explanation:

Given:

The mean concentration of red blood cells in an adult = 5.5 × 10^6

or = 5500 000

1 mm3 = 0.000001 dm^3

Solution:

Then, 1  dm^3 = 1000000 mm^3

(55000000 × 1000000) = 5500,000,000,000

= 5.5 × 10^12

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