Molar concentration = (numbet of mol Solute)/ ( volume Solution)
1) Finding
the number of the mol solute
Go to a famlie member, if you can't trust them, trust god. if you cant trust god, BURN IN HELL
Dilution refers to decreasing the ratio of total solution to the reference solution by the addition of other liquids. By adding water to tomato soup, the balance of “tomato soup” molecules decreases from 100% tomato soup, to eventually 1:1 TS and Water (50%), and so on. Chemically, you can observe this as decreasing the concentration of tomato soup in this solution.
The pH of salt depends on the component acid and base that comprise them. For example, if the salt is made up of strong acid and weak base then, the salt is acidic. If the salt is formed from strong base and weak acid then, the salt is basic. For this item, NH4Cl is acidic and also Ca(NO3)2 is acidic.
I think its A. it cant be C or D b/c we are measuring the distance between Earth and Saturn, not the speed.
