2 Select the correct answer.
PV = nRT
R= 8.314
L kPa
mol K
A 20.0-liter flask contains a mixture of argon at 0.72 atmosphere and oxygen at 1.65 atmospheres. What is the total pressure
in the flask?
or
ОА
0.93 atm
RE
ОВ.
2.37 atm
0.0821
L atm
mol K
Ос.
8.44 atm
OD
18.6 atm
1 atm =
101.3
kPa
K= °C +
273.15
Reset
Next
shts reserved
O
INTL 01:14
DELL

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.