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sveta [45]
2 years ago
7

The density of sodium is 968 g/cm3. Suppose you need 250 gm of sodium for an experiment. Which volume of sodium do you need? a 2

,420 cm3 b 0.26 cm3 c 3.87 cm3
Chemistry
1 answer:
Flauer [41]2 years ago
5 0
Density = 968 g/cm³

mass = 250 g

Volume  = ?

Therefore:

D = m / V

968 = 250 / V

V = 250 / 968 => 0.26 cm³  

Answer C

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<em>A chemist prepares a solution of potassium dichromate by measuring out 13.1 g of potassium dichromate into a 150 mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium dichromate solution. Be sure your answer has the correct number of significant digits.</em>

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Step 1: Calculate the moles corresponding to 13.1 g of potassium dichromate

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