You add 0.5 moles of NaCl to water to make a 250 mL solution. What is the molarity
of this solution?
0 4.0M
1.0 M
2.0 M
2.5M

The correct answer is 2, 0M

Explanation:

We calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case NaCl) in 1000ml of solution (1 liter):

250 ml solution 0,5 moles of NaCl

1000 ml solutionx= (1000 ml solution x 0,5 moles of NaCl)/250 ml solution

x=  2,0 moles of NaCl --> The solution is 2 M

b.final

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.