Units
What is the unit for mass?
grams, g
If Margaret has 5 moles of carbon (M = 12 g/mol), how many grams does she have?
m= n x M
m= 5 x 12 = 60 g
What is the temperature range of the Temperature Danger Zone?
Between 5℃ and 60℃
What is the national dish of Spain?
Paella
What is the unit for volume?
Litres, L
Emily drinks a fizzy drink with 0.04 moles of sugar dissolved in 200 mL of water. What is the concentration of sugar in her drink?
c = n/V
c = 0.04 / 0.2
c = 0.2 mol/L
What should you pour on the floor if you spill oil?
Salt
What was the first vegetable ever to be grown in space?
the potato
What is the unit and symbol for number of moles?
moles, mol
symbol : n
How many grams of salt (NaCl, M = 58 g/mol) would be in 3 moles?
m = n x M
m = 3 x 58
m = 174 g
What does WBS stand for?
Work breakdown structure
How many tines does a standard fork have?
Four
What is the unit for molar mass?
grams per moles, g/mol
How many grams of salt (NaCl) is needed to make 1 L of a 0.5 mol/L solution?
M(NaCl) = 58 g/mol
n = c x V
n = 0.5 x 1 = 0.5 mol
m = n x M
m = 0.5 x 58 = 29 g
What are the three key characteristics of a project?
Temporary, unique, purposeful
What was the unusually appropriate last name of the inventor of potato chips?
crumb
What is the unit for concentration? Give 2 answers.
mol/L, %, g/L, ppm, ppb
How many grams of element X would be in 200 mL of 0.33 mol/L solution? X has a molar mass of 22 g/mol.
n = c x V
n = 0.33 x 0.2 = 0.066 mol
m = n x M
m = 0.066 x 22 = 1.452 g
What are the five phases of project management?
Initiation, Planning, Execution, Monitoring & Control, Closure)
What popular sweet treat was invented by mistake at the Toll House in 1930?
chocolate chip cookies