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How much water would be needed to completely dissolve 1.66 of the gas at a pressure of 700 and a temperature of 10? Kh of gas of 0.194 M/atm.
0.5g KCl was dissolved in 100g water and the solution originally at 200C, froze at - 0.240C. Calculate the percentage ionization of salt. Kf per 1000g of water = 1.86K
What would be the effect of increasing the temperature on the following reaction? C2H2(g) + H2O(g) CH3CHO(g) DHrxn = -15 1 kJ 1. [CH3CHO] would increase 2. [CH3CHO] would decrease 3. [CH3CHO] would stay the same
What is w when a gas is compressed from 38.3 L to 28.8 L using a constant external pressure of 745 mmHg? (Remember to include a "+" or "-" sign as appropriate.)
which you might separate (a) K+ from Ag+, (b) Ba2+ from Pb2+, (c) NH4+ from Ca2+, and (d) Ba2+ from Cu2+. All cations are assumed to be in aqueous solution, and the common anion is the nitrate ion.
A chemist calculated the theoretical yield of a product to be 26.8 g. The percent yield was 92.2%. How many g of product were actually obtained
For the reaction CH4+202=2H2O+CO2, calculate the percent yield of carbon dioxide if 1000. g of methane react with excess oxygen to produce 2300. g of carbon dioxide.
A 25.00-mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when 52.58 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction..
Calcium metal has a density of 1.55g/cm3 and crystallizes in a cubic unit cell with an edge length of 558.2pm. a. how many Ca atoms are in one unit cell?
A compound forms cis-1,2-dimethylcyclopropane when it is reduced with H2 and Pd/C. The H NMR spectrum of the compound shows only two singlets. What is the structure of the compound
Change in internal energy E, At 25'C, enthalpy change H for the combustion of liquid octane, C8H8(l), to form CO2(g) and H2O(l) is -5471kJmol-1
given the mass of chlorine as 26.0g and mass of aluminium as 31.0g. if you had excess chlorine how many moles of of
Cyclopropane has significantly less angle strain than cyclopropane, yet is only slightly lower in energy. How can this be true? How does this information relate to the fact that cyclobutane is not a planar molecule
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