25. A solution is made by combining $4.00 g$ of sugar and $100 g$ of water. What is the concentration in $% m / m$ ?
A. $0.0385 %$
B. $0.0400 %$
C. $3.85 %$
D. $4.00 %$

Answer

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Answer

$3.85 %$ is the final answer.

Steps

Step 1 ：The concentration in %m/m (mass/mass) is calculated by the formula:

Step 2 ：The mass of the solute (sugar) is 4.00 g and the mass of the solution is the sum of the mass of the solute and the solvent (water), which is 4.00 g + 100 g = 104 g.

Step 3 ：So, the concentration in %m/m is:

Step 4 ： $3.85 %$ is the final answer.

25. A solution is made by combining 4.00 g of sugar and 100 g of water. What is the concentration in % m/m ?A. 0.0385%B. 0.0400%C. 3.85%D. 4.00%

Answer

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25. A solution is made by combining $4.00 g$ of sugar and $100 g$ of water. What is the concentration in $% m / m$ ?
A. $0.0385 %$
B. $0.0400 %$
C. $3.85 %$
D. $4.00 %$