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Calculate the amount of heat needed to boil 13.9g of acetic acid (HCH3CO2), beginning from a temperature of 49.9°C. Be sure your answer has a unit symbol and the correct number of significant digits.
Calculate the amount of heat in J required to heat 2.00 grams of ice from -12.0 C to 88.0 C. The heat of fusion of water is 6.02 kJ/mol the specific heat capacity of ice is 2.09 J/gC
The reaction has a 2:1 mole ratio of thiosulfate to all reducible iodine species. Calculate the concentration of total reducible iodine (mole/L) in the aqueous
What is the total combined mass of carbon dioxide and water that is produced?
What mass of Cu is formed by passing a current of 5.14 A through molten CuO for 4.30 days? The unbalanced chemical reaction representing this electrolysis
a. you are givena cube of silver metal that measures 1.000cm on each edge. the density of silver is 10.5 gcm3. how many
For an oxidation and reduction reaction, indicate what is oxidized and what is reduced in the following reaction.
Consider the following reaction: 2NO(g) + 2H2(g) → N2(g) +2H2O(g), The rate law for this reaction is first order in H2 and second order in NO.Write the rate law.
What is the volume in mL of 0.185 M HCl(aq) needed to reach halfway to the equivalence (stoichiometric) point in the titration of 47.0 mL of 0.196 M N2H4(aq) (Kb = 1.7 x 10^-6).
A sample of an unknown biochemical compound is found to have a percent composition of 45.46% carbon, 7.63% hydrogen, 10.60% nitrogen and the balance oxygen. What is the empirical formula for this compound
What mass of oxygen will react with 2.64g of magnesium? 2Mg(s)+O2(g)-->MgO(s)
When the reaction, Br2(aq) ? Br-(aq) + BrO3-(aq) is balanced in aqueous acidic solution, what is the ratio of BrO3- to Br-
225mL of a gas are collected over water at 22 C and 790torr. Explain the mass of the gas is 0.425 g as well as the vapor pressure of water at 22 C is 20torr. Explain what is the molar mass of the gas
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