louisaroseg06
louisaroseg06 louisaroseg06
  • 21-04-2021
  • Chemistry
contestada

Calculate the mass of magnesium chloride you would need to dissolve in 4dm of water to
make a 0.9g/dm solution.

Respuesta :

asuwafohjames
asuwafohjames asuwafohjames
  • 26-04-2021

Question: Calculate the mass of magnesium chloride you would need to dissolve in 4dm³ of water to

make a 0.9g/dm³ solution.

Answer:

3.6 g

Explanation:

From the question,

Density of magnesium (D) = Mass of magnesium (m)/Volume of magnesium(V)

D = m/V............... Equation 1

Make m the subject of the equation

m = D×V............. Equation 2

Given: D = 0.9 g/dm³, v = 4 dm³

Substitute these values into equation 2

m = 0.9×4

m = 3.6 g.

Hence the mass of magnesium is 3.6 g.

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