Complete the table

Mass Solute |
Mass Solvent |
Mass Solution |
Mass Percent |

15.5 g |
238.1 g |
_____ |
_____ |

22.8 g |
_____ |
_____ |
12.0% |

_____ |
183.3 g |
212.1 g |
_____ |

_____ |
315.2 g |
_____ |
15.3% |

Solution 45P :

Step 1:

Formula to find mass percent :

Mass percent = 100 %

Mass Solution = Mass solute + Mass solvent

Let’s consider 1st row :

Mass solute = 15.5 g

Mass solvent = 238.1 g

Mass Solution = ?

Mass percent = ?

Mass Solution = 15.5 g + 238.1 g

Mass Solution = 253. 6 g

Mass percent = 100 %

Mass percent = 6.11 %

Step 2:

Let’s consider 2nd row :

Mass solute = 22.8 g

Mass percent = 12.0 %

Mass solvent = ?

Mass solution = ?

We know, Mass percent = 100 %

Therefore, 100 % = 12 %

Cross multiplying, we get :

22.8 g 100 % = 12 % Mass solution

Mass solution =

Mass solution = 190 g

Now, let’s calculate mass solvent :

Mass solvent = Mass solution - Mass solute

= 190 g - 22.8 g

Mass solvent = 167.2 g

Step 3:

Now, let’s consider 3rd row :

Mass solvent = 183.3 g

Mass solution = 212.1 g

Mass solute = ?

Mass percent = ?

Mass solute = Mass solution - Mass solvent

= 212.1 g - 183.3 g

Mass solute = 28.8 g

Mass percent = 100 %

Mass percent = 13.57 %