Question

calculate the gram of NaCl (5.5 percent by mass) in 250 g of a commercial bleach solution.​

Answer 1

Given :

Percentage by mass concentration of the solution = 5.5%

Mass of solution = 250g

To Find :

Mass of solute (NaCl) present in the solution$.$

Solution :

❖ Mass percentage : Amount of solute in grams present in 100g of solution.

Effect of temperature : No effect

Symbol : % (w/W)

Formula :

$\dag\:\underline{\boxed{\bf{\purple{\%\dfrac{w}{W}=\dfrac{Mass\:of\:solute}{Total\:mass\:of\:solution}\times 100}}}}$

By substituting the given values;

➙ 5.5 = w × 100/250

➙ 5.5 = w × 0.4

➙ w = 5.5/0.4

➙ w = 13.75 g

Knowledge BoosteR :

• Solutions are homogeneous mixtures of two or more than two components.
• Solvent is the component that is present in the larger quantity in the solution.
• Solute is the component that is present in the smaller quantity in the solution.
• Solvent determines the physical state in which solution exists.

Answer 2

Answer:

w = 13.75 g

Explanation:

Mark me as a brainliest answer