Question

Based on the mass of lactose that you isolate from 1 ml of skim milk, calculate the percent composition of lactose in skim milk. (If you found protein in the “purified lactose” sample or lactose in your “purified casein” sample, then you need to speak with your instructor about how to analyze the data!)

Answer 1

This looks like the same problem you posted earlier.

Answer 2

it is different!

Answer 3

The only difference I see is your what if statement in parentheses. Have you spoken with your instructor to see how to analyze the date?

Answer 4

the date?

Answer 5

the data.

Answer 6

i have another question

Answer 7

[AI-generated answer — Explain Bot]

To calculate the percent composition of lactose in skim milk, you need to know the mass of lactose isolated from 1 ml of skim milk.

Here are the steps you can follow to determine the percent composition:

1. Start by measuring the mass of 1 ml of skim milk. You can use a graduated cylinder or a precise measuring instrument to obtain an accurate measurement.

2. Isolate the lactose from the skim milk. This process typically involves using a specific method, such as filtration or precipitation, to separate lactose from other components in the milk. Make sure you follow the procedure provided by your instructor or a trusted source.

3. Once you have isolated the lactose, measure its mass. Use an analytical balance or a scale with high precision to obtain an accurate measurement.

4. Calculate the percent composition of lactose using the following formula:

Percent composition of lactose = (mass of lactose / mass of skim milk) x 100

Substitute the values you obtained in step 1 and step 3 into the formula to find the percentage.

It's important to note that lactose is not the only component in skim milk, and there might be other substances present that could affect the result. Also, the accuracy of your measurements and the procedure used to isolate lactose can impact the reliability of your calculated value.