cunni05881
cunni05881 cunni05881
  • 01-10-2020
  • Chemistry
contestada

I will give Brainliest ...What mass of KBr is present in 75.0 mL of 0.250 M KBr solution?

Respuesta :

mickymike92
mickymike92 mickymike92
  • 06-10-2020

Answer:

Mass of KBr present = 2.23 g

Explanation:

Number of moles of KBr present in 75.0 ml of 0.250 M solution of KBr is first determined

From the formula: molarity = number of moles/ volume (L);

Number of moles = molarity * volume (L)

Volume of solution in Litres = 75/1000 = 0.075

Number of mole = 0.250 * 0075 = 0.01875 moles

Mass = number of moles * molar mass

Molar mass of KBr = 119 g/mol

Mass = 0.01875 moles * 119 g/mol = 2.23 g

Answer Link

Otras preguntas

What's 5 divided by x squared explain
What is the creepiest sounding scale? What scale would u use for writing creepy music in other words
Factor the expression. If the expression cannot be factored, say so.
The inner and outer Radii of a cylindrical pipe are 5 cm and 4 cm respectively. find the area of cross section of the pipe.
Forget the motor When im on the boat Think of the best time To buy a new coat What am I......?
What were the contributions of the Harappan civilization?
What were the contributions of the Harappan civilization?
Factor the expression. If the expression cannot be factored, say so.
The inner and outer Radii of a cylindrical pipe are 5 cm and 4 cm respectively. find the area of cross section of the pipe.
What all the multiples of 81?