Molar mass
what is the exact molar mass of oxygen (know where to find it)
15.999
the numbers in front the chemical formulas in a equation are called
coefficients
battery acid is a
strong acid
add water _____ concentration
decreases
milk
6.50
molar mass of CO2 (rounded)
44
1 CH4 + X O2 → 1 CO2 + X H2O
What is the value of X?
2
bleach is a
strong base
8 mols dissolved in 4 liters of soltuion is what molarity
2 M
orange juice
3.50
to go from grams to moles, you must _____ by the molar mass
divide
a Rb + 1 S8 → b Rb2 S
What are the values of a and b, respectively?
16,8
coffee is a
weak acid
how many moles in 500 ml of .25 M solution
0.125
soda pop
2.5
to go from moles to grams, you must _____ by the molar mass
multiply
4 FeS 2 + a O2 → 2 Fe 2 O3 + b SO2
What are the values of a and b
11,8
hand soap is a
weak base
Use M1 V1=M2 V2, when 1000 ml of 4.0 M creamer is added to 200 mL of coffee, what is the concentration of the coffee?
20 M
spit
7.4
C6 H12 O6 calculate the molar mass
180
a C + 2 SO2 → 1 CS2 + b CO
what are the values of a and b.
5,4
If a substance has a pH of 10, what is the pOH?
4
caffeine molar mass=194.2 g/mol
What is the concentration of impossible red bull, with 10 g of caffeine dissolved into 800 ml red bull solution?
0.0643 M
vomit
2.0