Given that one cup = 257.6 mL, calculate the molarity of vitamin C in orange juice. Express your answer to an appropriate number of significant figures with the appropriate units.

2.80 × 10⁻³ M

Explanation:

There is some info missing. I think this is the original question.

One cup of fresh orange juice contains 127 mg of ascorbic acid (vitamin C, C₆H₈O₆). Given that one cup = 257.6 mL, calculate the molarity of vitamin C in orange juice.

Express your answer to an appropriate number of significant figures with the appropriate units.

Step 1: Convert the mass of ascorbic acid to grams

We will use the relationship 1 g = 1,000 mg.

Step 2: Calculate the moles corresponding to 0.127 g of ascorbic acid

The molar mass of ascorbic acid is 176.13 g/mol.

Step 3: Convert the volume of the solution to liters

We will use the relationship 1 L = 1,000 mL.

Step 4: Calculate the molarity of the solution

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).