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A student collected hydrogen gas in a buret overwater at 230 C. The buret could not be submergeddeep enough in a water bath to equalize the pressure. The liquid level inside the buret was 14.2 cm above the liquid level outside. If the atmospheric pressure was 739 torr, what isthe pressure of the gas in the buret?
Can someone please explain step by step in detail and provide asolution answer. If there are numbers used to figure this outthat are not in the question please let me know where they came from.
Which of the following substances would have a standard enthalpy of formation equal to O kj/mol. Select all that apply
In a second experiment, I(electric current) broke down a sample of H 2 O into 1.45 grams of hydrogen and 11.51 grams oxygen. Are these results reliable with the law of exact extent?
The NaOH catalyst solution is prepared by dissolving 0.4 g of NaOH in 4.0 mL of water then adding 3.0 mL of 95% ethanol. how many moles of NaOH, mL of water and ml of ethanol in 3 mL?
Using words and pictures, explain why impurities usually lower the melting point of a substance. Next, imagine a case where an impurity actually RAISES the melting temperature of a pure substance
How much energy in kilojoules is required to change 47.6grams of ice at 0 degrees of celcius water at the same tempature
A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the mass
Phosgene (COCl_2) has been used as a chemical agent in warfare. It blisters the lungs when breathed. Consider the following reaction: CO(g) + Cl_2(g) --> COCl_2(g). Calculate the temperature at which this reaction changes from spontaneous to non-spo..
in a reaction at equilibrium the partial presssure of so2 is 117 torr and that of cl2 is 255 torr. what is the partial
Describe the procedure for doing isopentyl acetate. provide the calculation and all the reagents that can be used in this reaction
What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water.
How much would the beaker and its content weigh if it was completely filled with mercury? The density of mercury is d = 13.5 g/mL ? = g
How would the stereochemical outcome of the bromination reaction differed if we would have started with cis-cinnamic acid
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