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Now assume you measure out exactly 2.0 mL of aluminum chloride into a third test tube. How many moles of aluminum chloride are in the tube?

Respuesta :

First, convert 2.0 mL of AlCl3 to grams using the density, which is 2.48g/mL. So 2.48g/mL * 2.0 mL = 4.96g. Then find the molar mass of aluminum chloride and divide 4.96 by this number, which is 133.34g. 4.96g*(1mol/133.34g) = .0372 mols AlCl3. Check for significant digits though. 
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Answer:

0.00020 moles

Explanation:

Without overwhelming anybody who desires the correct answer, here it is.

The answer to both of the questions stating that you are to measure a specific solution and place it in a test tube is 0.00020 moles.

Hope this helps.

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