The concentration in molarity of a solution containing 10 moles of copper(ii) nitrate in 5.0 Liters of solution is calculated using the following formula

molarity = number of moles/ volume in liters

= 10/5.0 = 2 M

6 0

3 years ago

Describe how you would separate rock salt to obtain salt crystals and pure dry sand.

USPshnik [31]

Answer:

Separating Sand and Salt

Probably the easiest method to separate the two substances is to dissolve salt in water, pour the liquid away from the sand, and then evaporate the water to recover the salt.

6 0

3 years ago

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Which has a greatest mass, one atom of carbon, one atom of hydrogen, or one atom of litium

zysi [14]

Answer:

One atom of carbon

Explanation:

5 0

3 years ago

Rasheed calculates that his chemical reaction should produce 4 moles of product, but when he does the experiment, he gets only 3

Brut [27]

Answer:

The answer to your question is 75%

Explanation:

Data

Theoretical production = 4 moles

Experimental production = 3 moles

Percent yield = ?

Formula

$Percent yield = \frac{Experimental production}{Theoretical production} x 100$

Substitution

$Percent yield = \frac{3}{4} x 100$

Result

Percent yield = 75 %

8 0

3 years ago