Font size
WorksheetsCL0639 Lesson 1 - Intro and Evaluation of Data
Total questions: 8
Worksheet time: 24mins
Which of the following is NOT a reason to do food analysis from the government point of view?
To maintain general quality of food supply
To inform consumers about the nutritional composition of food
For new product development
To enable fair competition among food companies
How many significant figures are there in 89,300?
1
2
3
4
5
How many significant figures are there in 0.00500?
1
3
5
6
How many significant figures are there in 2.500 X 109 ?
1
2
3
4
Rosemary prepared a stock solution using 3g of dye and dissolved it in a 300ml volumetric flask. What is the concentration of the stock solution in mg/L (ppm)?
100 mg/L
1,000 mg/L
10,000 mg/L
100,000 mg/L
To prepare TEN (10) times dilution from a stock solution 10mg/mL, (a) ml of solution will be taken from the stock solution and make up with water in a 100ml volumetric flask.
To prepare TWENTY (20) times dilution from a stock solution 10,000mg/mL, (a) ml of solution will be taken from the stock solution and make up with water in a 50ml volumetric flask.
Calculate the mean and standard deviation of percent moisture in milk powder samples as shown in the table.
