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kirill [66]
3 years ago
7

Can someone help please​

Chemistry
2 answers:
Serhud [2]3 years ago
8 0

<em>Let </em><em>the </em><em>mass </em><em>be </em><em>X </em><em>g</em>

<em>percentage </em><em>=</em><em> </em><em>X/</em><em> </em><em>6.</em><em>5</em><em>0</em><em> </em><em>*</em><em> </em><em>100 </em><em>=</em><em>2.</em><em>2</em><em>%</em>

<em>X=</em><em> </em><em>0.</em><em>1</em><em>4</em><em>3</em><em> </em><em>g</em>

<em>The </em><em>mass </em><em>is </em><em>0.</em><em>1</em><em>4</em><em>3</em><em> </em><em>g</em>

aliina [53]3 years ago
5 0

The mass is X g

============================

percentage is X/6.50*100 =2.2%

-----------------------------------------------

X=0.143g

-------------------------------

| The mass is 0.143g |

-------------------------------

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The number of moles of solute in the volume taken from the more concentrated solution will be equal to the number of moles of solute in the diluted solution. Then, the concentration of the first solution can be calculated using the following equation:

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