Question

The methyl red solution you will use for this experiment was made using .080 grams of methyl red per liter of solution. The molar mass of methyl red is 269.31 g/mole. What is the molarity of the stock solution you will be using?

Answer 1

1. Calculate # Moles Methyl red:

`\frac{0.080g}{}*(1 mol)/(269.31g) = 2.97 * 10^-4` moles

2. Calculate the Molarity: f

Molarity =
`(2.97*10^-4mol)/(1\l) = 2.97*10^-4 \ M`