1. A solution is prepared by dissolving 120.0 grams of sodium hydroxide in enough water to make 800.0 mL of solution. a. Calculate the molarity of this solution.
b. What volume of this solution is needed to make 500.0 mL of a 1.75 molar solution of sodium hydroxide?

answer: i would say b.

explanation:

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.