Using the table, determine whether adding 11 g of NaNO3 to 25 g of H2O

will produce a saturated or unsaturated solution at 20 degrees Celsius:

Solubility (g/100 g H2O)

Substance

20 ° C

50° C

KCl

34

43

NaNO3

88

110

C12H22O11 (sugar)

204

260

A. unsaturated

B. saturated

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water pollution kills aquatic life. aquatic life includes algae and other plant life that use photosynthesis. photosynthesis takes   c02 out of the air.  

c02is a greenhouse gas.

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

answerto predict;