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An ideal gas at a temperature of 45.0oC and a pressure of 745 torr is contained in a bottle having a capacity of 125 mL. What pressure would this gas exert if it were cooled to 25.0oC and transferred to another flask with a volume of 95.0 mL?
what is the molality of a solution of 10g benzophenone and 1mL of cyclohexanone
Two kilograms of steam contained in a horizontal frictionless piston as well as cylinder initially at 250C and 4.81m3 are cooled isobarically until the volume decreases by 19.5%. Presume that heat is transferred at 190C.
Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and in the production of aluminum metal. It is prepared by the reaction CaF2 + H2SO4 ---> CaSO2 + 2HF In one process,
a 420g mixture of butane and butene is combusted in air to make carbon dioxide and water. if 555 grams of water are
The following compounds, listed with their boiling points, are liquid at -10 degrees celsius: butane, -0.5 degrees celsius: ethanol, 78.3 degrees celsius: toluene, 110.6 degrees celsius.
how would your calculated value for the molecular weight of your unknown been affected high low no effect if a small
What effect do you think the 5% efficiency will have on your decision whether to use photovoltaic cells as an energy source for green that you design to save the world from climate change. What might some considerations to keep in mind for the tow..
Question- A battery is constructed by placing copper and lead electrodes in contact with 1.0 molar CuS04(aq) and Pb(N03)2 (aq) solutions, respectively. If sulfuric acid is then added to the Pb(N03)2 solution,
the density of cyclohexanewas determined by weighing 1 ml of the liquid at roomtemperature. the sample was delivered
For each molecule, draw the Lewis structure that satisfies the octet rule for that molecule and also draw the Lewis structure that minimizes formal charges for the molecule as well. For the Lewis structure that satisfies the octet rule
The molar mass of a protein is determined from a measurement of the osmotic pressure. If 0.01 grams of the protein is dissolved in 1 ml. and osmotic pressure of 5 x 10-3 atm develops at a temperature of 310 K, what is the molar mass of the protein..
After that the student diluted each of the four solutions to 100.00mL with deionized water. The pH of each solution was 4.615, 5.072, 5.488, and 6.114, respectively. For all of the four solutions how many moles of base were added
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