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2 years ago

11

Carbon dioxide is a waste product from breathing. Which organ of the body, which is attached to the trachea, pushes carbon dioxi

de out of the body? A. liver B. lungs C. kidney D. skin

2 answers:

Umnica [9.8K]2 years ago

8 0

The lungs help push air out aka. carbondinoxide

Darya [45]2 years ago

3 0

B. The lungs take in oxygen and push out CO₂

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2 years ago

Show, in a step by step fashion, your calculations to determine the percent

marusya05 [52]

The percent by volume of a solution : 19.23%

<h3>Further explanation</h3>

Given

50 ml of ethanol

210 ml of water

Required

The percent by volume of a solution

Solution

Percent Volume (% v/v) : volume (ml) of solute/100 ml of solution ⇒ ratio of the volume of the solute to total volume of the solution

$\tt \%solute(v/v)=\dfrac{solute~volume}{solution~volume}\times 100\%$

solute= Ethanol

solvent=water

Solution = solute+solvent

Total volume of the solution :

$\tt =volume~of~Ethanol+solume~of~water\\\\=50~ml+210~ml\\\\=260~ml$

Percent by volume :

$\tt \%volume=\dfrac{50}{260}\times 100\%\\\\\%volume=19.23\%$

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3 years ago