To determine the density, you need to know the volume of a known mass of substance. To find the mass, just weigh out a sample. To determine the volume of a sample, a common method is to put some liquid in a graduated cylinder and record the volume. Then add the weighed sample (in this case MgNO3), and then record the new volume. Subtract the original volume from the new one, and the difference is the volume of the solid. To do this, accurately, the solid must be completely insoluble in the liquid. And so the liquid should not really be a solvent at all! For an ionic compound MgNO3, using a non-polar organic solvent (such as hexane) should ensure essentially zero solubility.
Cyclohexone because it is insoluble in it.
Cyclohexane.
water is the solvent while sodium nitrate is the solute
Ethanol is a polar solvent. Ethanol will dissolve silver nitrate.
No because sodium acetate is soluble in water
Silver Nitrate
Silver is soluble in Nitric Acid producing silver nitrate.
Silver metal, the magnesium displaces the silver from solution. It's not really a "precipitate" exactly; the silver forms deposits on the surface of the magnesium instead of crystallizing in the solvent.
water is the solvent while sodium nitrate is the solute
Toluene, benzene, or hexane are suitable organic solvents for determining the density of diphenyl.
Ethanol is a polar solvent. Ethanol will dissolve silver nitrate.
No because sodium acetate is soluble in water
It is a solution. A solution is a type of mixture in which a solute is dissolved in a solvent. A solution is a homogeneous mixture. In the case of an aqueous solution of sodium nitrate, the sodium nitrate is the solute and the water is the solvent.
No, it is an ionic compound which is soluble in water (a polar solvent) but not in Hexane ( a non polar solvent).
Magnesium chloride is an ionic salt. Hexane is a non polar solvent. So, magnesium chloride is unsoluble in hexane.
Silver Nitrate
Glacial Acetic Acid
Silver nitrate is soluble in water but chloride and carbonate are insoluble.
Use a solvent which do not dissolve the solute. For example, if you want to determine the density of sugar, and sugar, as we all know, is soluble in water. So, instead of water we can substitute it with oil.