I am confused on how to calculate the problem
Hey there! In this problem we are asked to solve for the mass of barium chloride when given the molarity and the volume. One equation that involves both molarity and volume is M=moles/L. We can find the L through the mL given, and we have the M, which means we can solve for moles.
When we have moles, we can find the mass of the BaCl2 by using the molar mass of it. We simply solve for the grams. The final answer should be around 6.25 g of BaCl2.
Hope that helped!