What is the formula for finding concentration from mass and volume?

300 g of KBr is dissolved in 4 dm³ of water.

Calculate the concentration in g/dm³.

5.0 g of KNO₃ is dissolved in 100 cm³ of water.

Calculate the concentration in g/dm³.

8.0 g of NaCl is dissolved in 250 cm³ of water.

Calculate the concentration in g/dm³.

A beaker contains 0.6 dm³ of 0.50 g/dm³ HNO₃

Calculate the mass of HNO₃ in grams.

A beaker contains 1.5 dm³ of 8 g/dm³ NaOH

Calculate the mass of HNO₃ in grams.

A beaker contains 0.2 dm³ of 5 g/dm³ CaBr

Calculate the mass of CaBr in grams.

A student has 10 g of NaBr, and wants to use it to make a NaBr solution with a concentration of 4 g/dm³.

If she wants to use the whole 10 g, what volume of solution will she need to make?

A student has 2 g of KCl, and wants to use it to make a KCl solution with a concentration of 5 g/dm³.

If she wants to use the whole 2 g, what volume of solution will she need to make?