Saline is 9 g of salt per 1 kg of water. what ppm is this?

Density of water is 1 kg/L

There is 9 g of salt per 1 kg of water, on converting mass of water into its volume, there will be 9 g of salt per litre of water

1 ppm is equal to mg per litre

Since,  1 mg = 0.001 g

Thus, 1 ppm is equal to 0.001 g per litre

1 g/ l will be

Therefore, 9 g/l =

Hence, concentration of saline in water is 9000 ppm.

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 :