Convert 236 mg mgp207 to moles. use three significant figures in your answer.

0.00106 mole

Assuming the formula of the compound given is Mg₂P₂O₇ (magnesium pyrophosphate)

Molar mass of Mg₂P₂O₇ = 222.55 g/mol

Mass of the compound = 236 mg or 0.236 g

Therefore;

Number of moles = 0.236 g ÷ 222.55 g/mol

                             = 0.0010604

                              = 0.00106 mole ( 3 sf)

Therefore, the number of moles of Mg₂P₂O₇ are 0.00106 mole

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.