At 20°c, a saturated solution of sodium nitrate (nano3) contains 86 grams of solute in 100 m of waer how many grams of sodium nitrate must be added to saturate the solution at 50°c? 15 grams 29 grams 42 grams 115 grams

29 grams

At 20°C, a saturated solution of sodium nitrate (NaNO3) contains 86 grams of solute in 100 m of water.

This means the solubility of NaNO3 at  20°C is 86 g/100 ml of water

The solubility of NaNO3 at 50 °C is 115 grams of NaNO3/100 ml of water.

Therefore; to get the amount of sodium nitrate must be added to saturate the solution at 50°C;

We subtract the solubility at 20°C  from the solubility at 50 °C

That is; 115 g/100 ml of water - 86 g/100 ml of water

          = 29 grams of NaNO3

it has one origin of replication, but it proceeds in two directions - d)

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v