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the mass of water is 92.6 grams, the initial temperature of the water is 58.9 degrees celsius, the mass of teh liquid nitrogen added to the water is 57.1 grams, and the final temperature after the liquid nitrogen has vaporized is 29.6 degrees celsius.
How much heat is lost by the warm water?
Calculate the molar solubility of stronium fluoride (SrF2) when dissolved in a 0.0800 M solution of stronium nitrate
Look up the chemical structure of ibuprofen. Do you think it inhibits the inflammation cascade in the same way as aspirin? Why or why not?
A certain reaction has an activation energy of 70.0 Kj/mol and a frequency factor of A1 = 4.80×1012. A) What is the rate constant, k , of this reaction at 30.0 C
What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the following equation?
Find the volume of oxygen - What volume of oxygen is needed to completely combust 2.07 L of methane gas
The standard cell potential (Ecell) of the zinc-air battery is 1.65V. If at 25 degrees celcius the partial pressure of oxygen in the iar diffusing through its cathode is 0.22atm, what is the cell potential (Ecell)? Assume the cell reaction is:
A mixture of nitrogen and liquid ethanol in a closed constant-volume container has a partial pressure of 101 mm Hg of nitrogen and 66.2 mmHg ethanol at 27 C (300 K)
2Al(s)+3H2SO4(aq) -> Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 15.5g. What minimum mass of H2SO4(in g) would you need?
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.
Draw a Lewis structure of BF that satisfies the octet rule for both atoms
Organic Chemistry and Genetics Problems - Write an equation for the complete hydrolysis of 2'-deoxythymidine-5'-monophosphate (dTMP) to its component parts.
A 72.0 mL volume of 0.25 Moles HBr is titrated with 0.50 Moles KOH. Calculate the pH after addition of 36.0 mL of KOH
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