A Solution Is Prepared by Dissolving 49

question 161

Multiple Choice

A solution is prepared by dissolving 49.3 g of KBr in enough water to form 473 mL of solution. Calculate the mass % of KBr in the solution if the density is 1.12 g mL^-1.

• A) 10.4%
• B) 8.57%
• C) 10.1%
• D) 11.7%
• E) 9.31%

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Definitions:

Exponential

The rate at which current rises and falls in inductor or the rate at which capacitors charge and discharge.

Dielectric Stress

The electric stress or field strength within an insulating material, which can lead to breakdown if it exceeds the material's dielectric strength.

Voltage Difference

The difference in electric potential between two points in an electric circuit, driving the flow of current.

Farad

The SI unit of capacitance, describing a capacitor's ability to store charge per unit of electric potential difference, named after Michael Faraday.