Determine pressure of the gas
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
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a piece of gold jewelry that weighs 9.35 g and has a volume of 0.654 cm3. The density of pure gold is 19.3 g/cm3 and the density of pure silver is 10.5 g/cm3. Find the percent composition of gold and silver
Your new network assistant has ordered a batch of RJ-11 connectors to keep in reserve for building network cables on your twisted-pair network. Is this order appropriate for your company's needs?
Water flows through a pipe AB 1.2 m diameter at 3 m/s and then passes through a pipe BC 1.5 mdiameter. At C, the pipe branches. Branch CD is 0.8 m in diameter and carries one third of the flow in AB.
The dry sample of gas had a mass of 4.20 g. At 21 degrees celsius the vapor pressure of water is 18.65 torr. What was the molecular weight of the gas?
A very long cylinder of linear dielectric material is placed in an otherwise uniform electric field Eo. Find the resulting field within the cylinder. (the radius is a , the susceptibility is Xe , and the axis is perpendicular to Eo.
You Have 500 mL of a buffer solution containing .2 M CH3COOH and .3 M CH3COONa. What will the pH of this solution be after the addition of 20 mL of 1.00 M NaOH solution? (Ka=1.8x10^-5)
You add 7.3 iron to 25.10 of water and observe that the volume of iron and water together is 26.03. Calculate the density of iron.
During an experiment, a metal and an excess of fluorine gas were placed into a combustion chamber at a temperature of 1800°C. The temperature in the sealed chamber continued to rise to 2100°C. After the reaction stopped, a brittle white sub
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The woman has a history of congestive heart failure with decreased kidney function within the last year. The woman appears unusually tired and slightly pale.
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