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Lab 1 Quiz

Lab 1 Quiz

Q Question 1 1 / 1 pts What is the volume of water found in this 50 mL graduated cylinder shown below? (Hint: be careful to write units in your answer!) Question 2 2 / 2 pts Show mathematically (or explain) your work for the following conversion: convert 30 g to mg. Question 3 1 / 1 pts Which of the following is the correct conversion of 450 cm to meters? Question 4 0 / 1 pts A milligram is ___________ of a centigram. Question 5 2 / 2 pts Convert 31 degrees Fahrenheit to degrees Celsius. Round to two significant figures.

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1.Your Answer: 25mL .Your Answer: 30g x 1000= 30,000 30 g = 30000 mg (a gram contains 1000 milligrams. Move the decimal 3 places to the right.) Alternatively: 30 g x (1000mg/1 g) = (30000 mg *g/ 1 g)= 30,000 mg 3.4.5 m 4 .1/10 5.(31 F - 32) x 5/9 = -0.555 C Rounded -0.56, -0.6 -1 C = (F-32)/1.8 C = (31-32)/1.8 = -0.56