PERCENT BY MASS Percent by Mass mass of solute mass of solution Percent by mass equals the mass of the solute divided by the mass of the whole solution percent by mass: 100 multiplied by 100. Solute Mass (g) of Moles of Amount of solute solute solution Student A 2.50 0.25 1L =1000 g Student B 2.50 0.10 1L=1000 g Which of the following students' statement is true about the solutions above? Explain using evidence from your calculations. - Student A believes: They have the same mass % because they have the same amount of solution and grams of solute. Student B believes: They have the same mass % because they have the same amount of moles of solute.

Chemistry: Principles and Reactions
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PERCENT BY MASS
Percent by Mass
percent by mass = mass of solute
x 100
mass of solution
Percent by mass equals the mass of the solute divided by the mass of the whole solution,
multiplied by 100.
Solute
Mass (g) of Moles of
solute
Amount of
solute
solution
Student A
2.50
0.25
1L =1000 g
Student B
2.50
0.10
1L=1000 g
Which of the following students' statement is true about the
solutions above? Explain using evidence from your calculations.
1 Student A believes: They have the same mass % because they
have the same amount of solution and grams of solute.
1 Student B believes: They have the same mass % because they
have the same amount of moles of solute.
Transcribed Image Text:PERCENT BY MASS Percent by Mass percent by mass = mass of solute x 100 mass of solution Percent by mass equals the mass of the solute divided by the mass of the whole solution, multiplied by 100. Solute Mass (g) of Moles of solute Amount of solute solution Student A 2.50 0.25 1L =1000 g Student B 2.50 0.10 1L=1000 g Which of the following students' statement is true about the solutions above? Explain using evidence from your calculations. 1 Student A believes: They have the same mass % because they have the same amount of solution and grams of solute. 1 Student B believes: They have the same mass % because they have the same amount of moles of solute.
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