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Doss [256]
3 years ago
13

A technician is asked to make up a solution of physiological saline and is told that it should be a 0.9% NaCl solution using the

mass/volume percent measurement of concentration. If the technician is making 100 milliliters of solution, how much NaCl should be included?
A. 9 micrograms
B. 9 kilograms
C. 9 grams
D. 0.9 grams
E. 90 grams
Social Studies
1 answer:
shutvik [7]3 years ago
3 0

Answer:

0.9 grams

Explanation:

Given that

NaCl solution = 0.9%

And, the milliliters of solution = 100

So, the computation of the Nacl included is shown below:

As We assume that

The  1 gram ÷ 100 gram = 1%

So we assume the number of grams be X

So, now the equation is

X gram ÷ 100 ml = 0.9%

So, the X gram is

= 0.9% × 100 ml

= 0.9 grams

Hence, the correct answer is D. 0.9 grams

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