Respuesta :

Clyde0805

Answer:

2M

Explanation:

M=mol/L

1. Find moles of CoCl2

mass of substance/molar mass = 130/129.833 = 1.001 mol

3. Substitute in molarity equation

M=(1.001/0.5)

M= around 2M

samueladesida43

The molarity of a solution with 130g of CoCl2 in 1/2 liter is 2M

HOW TO CALCULATE MOLARITY:

  • The molarity of a solution can be calculated by dividing the number of moles of that substance by its volume:

  • Molarity = no. of moles ÷ volume

  • First, we convert 130g of CoCl2 to moles as follows:

  • Molar mass of CoCl2 = 129.84 g/mol

  • moles = 130g ÷ 129.84g/mol

  • moles of CoCl2 = 1mol

  • Molarity of CoCl2 solution = 1mol ÷ 0.5L

  • Molarity of CoCl2 = 2M

Therefore, the molarity of a solution with 130g of CoCl2 in 1/2 liter is 2M.

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