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A few of cyclohexane solvent vaporized during the temperature versus time measurement. Will the loss of cyclohexane result in its freezing point being recorded as too high, too low or unaffected? Explain.
The vapor pressure of CCl4 (MM = 153.81g/mol) at 65 degree celsius is 504mmHg. How many grams of C10H8 (MM= 128.2gmol) must be added to 25.00g of CC4 so that the vapor pressure of CCl4 is 483mmHg?
Starting with BCl3, give the steps for the synthesis of the following compounds (indicate the organic compounds or special reagents used)
In the oxidation of ammonia to form nitrogen oxide; 4NH3 + 7O2 ---> 4NO2 + 6H2O, water is formed at an instantaneous rate of 42 mol L-1 s-1. A.) What is the normalized reaction rate? B.) At what rate is O2 consumed? C.) At what rate is NO2 formed?..
Calculate the pH of a buffer made by mixing 50.0mL of 0.10M acetic acid (HC2H3O2) with 50.0mL of 0.10M sodium acetate (NaC2H3O2)
What is the formal charge on the central chlorine atom in the molecular ion [ClO4]-. Assume that all of the Cl-O bonds are single bonds
Based on the stoichiometry, at what point does the limiting reactant change? show calculations to support your answer. The volume of acid HCL (10mL) is constant and mass of metal Mg (0.250g) is constant.
Calculate the standard molar enthalpy of formation ?H°f of N2H4(g) from the following information: N2(g) + 2H2(g) ? N2H4(l) ?H°rxn = +50.6 kJ N2H4(g) ? N2H4(l) ?H°rxn = -44.8 kJ A. +5.8 kJ/mol B. +95.4 kJ/mol C. +47.7 kJ/mol D. -95.4 kJ/mol E. -5...
the mass spectrum determined the molecular weight of mehtyl salicylate to be 125.15 g/mol. What is the molecular formula of methyl salicylate?
dissolved in 100.0 mL water and titrated with 0.500 M NaOH; it takes 45.1 mL to reach the equivalence point. What is the molecular mass (g/mol) of pyruvic acid?
How many grams of CO2 can be produced by the reaction of 35.5 grams of C2H2 and 45.9 grams of O2? Please help with the balancing the equation
Small amounts of oxygen can be generated by the thermal decomposition of KClO3; 2 KClO3(s) ® 2 KCl(s) + 3 O2(g) A sample of KClO3 was decomposed and oxygen collected over water at 16.00 °C
Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated. Then, calculate the equilibrium constant for the neutralization reaction.
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