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What mass of hydrogen peroxide should result when 1.29 g of barium peroxide is treated with 25.0 mL of hydrochloric acid solution containing 0.0281 g of HCl per mL?
Consider the unbalanced equation: C5H12(l) +O2(g) --> CO2(g) +H2O(l) if 25.2 grams of pentane (C5H12) are burned in excess oxygen, how many grams of H2O will be produced?
A cumbustion analysis was carried out on 1.621g of newly synthesize compound which was known to contain only carbon,hydrogen and oxygen.
a 150 ml buffer solution containing 0.100 m hydrocyanic acid hcn ka6.2 x 10-10 and .100 m soudium cyanide nacn has 30.0
At 105 °C, the reaction 2NO2(g) ? N2O4(g) has Kp = 0.054. What is the value of Kc at this temperature?
A 21.70mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in the titration of a 3.06g sample of vinegar. calculate the number of moles of acetic acid in the vinegar sample.
Use the Simple Huckel Molecular Orbital (SHMO) program to calculate which Pi system is more stable, anthracene or phenathrene.
How much heat is absorbed by 15.5g of water when its temperature is increased 20.0C to 50.0C?The specific heat of water is 4.184J/(g.C)
Write the structure of the compound that would result if the adduct were heated too long in the recrystallization solvent (CH3OH)
Calculate the delta Hrxn for the following equation- 4KNO3(s) - - > 2K2O(s) + 2N2(g) + 5O2(g)
What Celsius temperature, T2, is required to change the volume of the gas sample in Part A (T1 = 41celsius, V1= 1770 L) to a volume of 3540 L ? Assume no change in pressure or the amount of gas in the balloon.
A sample of 35 millimole of Krypton gas expands reversibly and isothermally at 373K from 5.25 cubic centimeters to 6.29 cubic centimeters. The internal energy, U, increases by 41.75 J.
Determine the osmotic pressure of a solution that contains 0.042 g of a hydrocarbon solute (molar mass = 340 g/mol) dissolved in benzene to make a 350-mL solution. The temperature is 20.0°C.
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