<span>P1 x V1/ T1 = P2 x V2/ T2 works for all gas problems.
In this case the temperature is constant so
P1 x V1 = P2 x V2
700.0 x 60.0 = 760.0 x Answer
700.0 x 60.0/ 760.0 = Answer</span>
What is the speed of light?
The speed of light is 299,792,458 meters per second.
You must burn 1.17 g C to obtain 2.21 L CO2 at
STP.
The balanced chemical equation is
C+02+ CO2.
Step 1. Convert litres of CO, to moles of CO2.
STP is 0 °C and 1 bar. At STP the volume of 1 mol
of an ideal gas is 22.71 L.
Moles of CO2= 2.21 L CO2 × (1 mol CO2/22.71 L
CO2) = 0.097 31 mol CO2
Step 2. Use the molar ratio of C:CO2 to convert
moles of CO to moles of C
Moles of C= 0.097 31mol CO2 × (1 mol C/1 mol
CO2) = 0.097 31mol C
Step 3. Use the molar mass of C to calculate the
mass of C
Mass of C= 0.097 31mol C × (12.01 g C/1 mol C) =
1.17 g C
It looks as if you are using the old (pre-1982)
definition of STP. That definition gives a value of
1.18 g C.
Sodium chloride (NaCl), whose only changes about 5g/100mL water over that entire range 100°C)
9.there are thermal cups that we use
