Then, calculate the molarity of a solution made by adding 5.57 g of cacl2 to enough water to create a solution with a total volume of 2.50 l. enter only a numerical value in the correct number of significant figures.

The answer to your question is: 0.02 M

Explanation:

Data

mass = 5.57 g

volume = 2.50 L

Formula

Molarity =

Process

1.- Calculate the molecular mass of CaCl₂

Molecular mass 0f CaCl₂ = 40 + (35.5 x 2) = 111 g

2.- Calculate the moles of CaCl₂ in 5.57 g

                                111 g of CaCl₂  ---------------- 1 mol

                                 5.57 g of CaCl₂ -------------   x

                                   x = (5.57 x 1) / 111

                                   x = 0.050 moles of CaCl₂

3.- Calculate molarity

      Molarity = 0.02

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current