CHEM 121 MODULE 1 QUIZ 1 QUESTIONS AND
CORRECT ANSWERS | NEW UPDATE 2025
Convert the following numbers from one form to another and explain your
answer.
5.38 x 10-3 = - ANSWER 0.00538
Convert the following numbers from one form to another and explain your
answer.
623000000. = - ANSWER 6.23x10^8
Complete the following conversions and show all work. Be sure to write your
answer with the correct units.
25.3 g = ? decigrams - ANSWER 25.3g X 10decigrams /1g = 253decigrams
Complete the following conversions and show all work. Be sure to write your
answer with the correct units.
56 ft = ? in - ANSWER 56ft x12in/1ft= 672in
Complete the following conversions and show all work. Be sure to write your
answer with the correct units.
, 85 °F = ? °C - ANSWER 85-32/1.8= 53/1.8 = 29.4 C
Complete the following conversions and show all work. Be sure to write your
answer with the correct units.
412 K = ? °F - ANSWER 412 K - 273 = 139 °C x 1.8 + 32 = 282.2 °F
Complete the following problems and show all work. Be sure to show the correct
number of significant figures in each calculation and answer with the correct
units.
What is the volume of a sample of mercury (d = 13.6 g/ml) which weighs 1000. g?
- ANSWER 13.6 g/ml = D 1000 g = M find V = M / D = .6 = 73.5 ml
Complete the following problems and show all work. Be sure to show the correct
number of significant figures in each calculation and answer with the correct
units.
What is the density of 200. ml of bromine which weighs 620. grams? -
ANSWER 200 ml = V 620 g = M find D = M / V = 620 g / 200 ml = 3.10 g/ml
Complete the following problems and show all work when necessary. Be sure to
show the correct number of significant figures in each calculation and answer with
the correct units.
How many significant figures are there in each of the following numbers?
306.2 - ANSWER 306.2 contains 4 significant figures
CORRECT ANSWERS | NEW UPDATE 2025
Convert the following numbers from one form to another and explain your
answer.
5.38 x 10-3 = - ANSWER 0.00538
Convert the following numbers from one form to another and explain your
answer.
623000000. = - ANSWER 6.23x10^8
Complete the following conversions and show all work. Be sure to write your
answer with the correct units.
25.3 g = ? decigrams - ANSWER 25.3g X 10decigrams /1g = 253decigrams
Complete the following conversions and show all work. Be sure to write your
answer with the correct units.
56 ft = ? in - ANSWER 56ft x12in/1ft= 672in
Complete the following conversions and show all work. Be sure to write your
answer with the correct units.
, 85 °F = ? °C - ANSWER 85-32/1.8= 53/1.8 = 29.4 C
Complete the following conversions and show all work. Be sure to write your
answer with the correct units.
412 K = ? °F - ANSWER 412 K - 273 = 139 °C x 1.8 + 32 = 282.2 °F
Complete the following problems and show all work. Be sure to show the correct
number of significant figures in each calculation and answer with the correct
units.
What is the volume of a sample of mercury (d = 13.6 g/ml) which weighs 1000. g?
- ANSWER 13.6 g/ml = D 1000 g = M find V = M / D = .6 = 73.5 ml
Complete the following problems and show all work. Be sure to show the correct
number of significant figures in each calculation and answer with the correct
units.
What is the density of 200. ml of bromine which weighs 620. grams? -
ANSWER 200 ml = V 620 g = M find D = M / V = 620 g / 200 ml = 3.10 g/ml
Complete the following problems and show all work when necessary. Be sure to
show the correct number of significant figures in each calculation and answer with
the correct units.
How many significant figures are there in each of the following numbers?
306.2 - ANSWER 306.2 contains 4 significant figures
