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The heat of solution of LiBr is -48.8kJ/mol. if 4.82 g of LiBr is dissolved in 100.0 g of water in a calorimeeter at 19.8 C, what temperature will be reached? Neglect the heat capacity of the calorimeter and the contribution of the LiBr to the mass and specific heat of the water.
What mass of potassium chromate is needed to add to exactly 500g of water to produce a solution with vapor pressure of 21.50 torr at 24 C
Cool to the final temp at constant volume and then expand to the final pressure at constant temperature. Calculate the work done for each path.
how many liters of oxygen gas can be produced at STP from the decomposition of 0.250L of 3.00M H2O2 in the reaction according to the chemical reaction shown below 2H2O2(l) ====> 2H2O (l) + O2(g)
0.2 M HCl is used to neutralize 20 mL of 0.35 M NaOH. a. How many moles of OH- are present?
Explain the order of elution you would observe while performing gas chromatography during an elimination/dehydration process on 2-butanol. What property of the product molecules seems to be the most important in determining the relative retention ..
acetylene gas c2hs is produced as a result of the reaction cac2s2h2ol-gt c2h2gcaoh2aq. if 27g of cac2 are consumed in
Palladium crystallizes in a face-centered cubit unit cell. Its density is 12.0 g/cm^3 at 27 degress C. Calculate the atomic radius of Pd.
how large in kg an oxygen candle kclo3 would be needed to supply 8 people with enough oxygen for 24 hours on a small
What proportion of benzoic of benzoic should be used with an equimolar mixture of adipic acid and hexamethylene diamine to produce a polymer of 10,000 molecular weigh at 99.5% conversion?
From the composition of lignite coal, calculate the mass of sulfuric acid that could potentially form as acid rain from burning
Van der Waals constants can be found here. P= ? atm Use the ideal gas equation to calculate the pressure under the same conditions. P= ? atm
Diazomethane has the following composition by mass: 28.57% C, 4.80% H, and 66.64% N. The molar mass of diazomethane is 42.04 g/mol. Find the molecular formula of diazomethane and draw its Lewis structure.
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