If you add 100 ml of 50X TAE to 900 ml of water
a. What dilution did you perform?
b. Did you dilute the concentrated TAE to 1X?
c. What dilution is required to get to 1X?
d. To make 500 ml of 1X TAE Buffer, add _____ml of 50X TAE to
_____ml of water
It is observed that 56.00 mL of water at 20∘C completely fills a
container to the brim. When the container and the water are heated
to 60∘C, 0.35 g of water is lost.
Part A
What is the coefficient of volume expansion of the container?
Density of water at 60 ∘C is 0.98324 g/mL.
Express your answer using two significant figures.
Part B
What is the most likely material of the container?
copper
aluminum
glass
iron
2 kg of water exist initially as a vapor and liquid at 90
degrees C in a rigid container of volume 2.42 m^3 (a) at what
pressure is the system? (b) what is the quality of the system (c)
the temperature of the container is raised to 100 degrees C. what
is the quality of the system and what is the pressure? what are the
dH and dU at this point relative to the initial state? (d) as the
temperature...
A container contains water at 100 kPa. The specific volume of
the water inside the container is 1.00 m3/kg. What is the quality
(x) of the water in the container, as a percentage and what is the
phase of the water in the container?
You add 7.25 g of ice at 0.00 C to 100 g of water at 80.0 C.
What is the final temperature of the mixture at
thermal equilibrium assuming no heat loss to the surroundings?
The specific heat capacity of liquid water is 4.184 J/gC and the
enthalpy of fusion for water is 6.02 kJ/mol at 0.00C.
20 liters of water at 20 bar and 100 °C are in a variable volume
container. 56,000 kJ of heat are added to the system at constant
pressure which causes an increase in both temperature and
volume.
Draw a schematic of the process
Write the energy balance for this process and clearly state any
assumptions:
What is the final volume of the container?
How much work in [kJ] is completed? Pay careful attention to
your negative signs!
In one sentence...
4 liter sealed container contains water vapour at 0.4 atm and
90°C. a) What is the dew point of the vapour? b) Determine the
percentage of the vapour that will condense if the system is cooled
to 50°C.
The temperature of 500 mL of distilled water in a flask is
between 70°C and 90°C. Room temperature is 20°C. the useful range
of the only thermometer available is between 0°C and 50°C. Briefly
describe an experiment you could carry out which would allow you to
determine exactly the temperature of the water in the flask.
Indicate the following in your description:
What equipment would you use?
What would you do?
The equation(s) for any calculation(s) you would carry out,...