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Determine a Cu sample digested with excess 1 M HNO3. Explain what is the expected oxidation state of Cu in the solution?
The mass of an average blueberry is 0.72 g and the mass of an automobile is 1900 kg. Find the number of automobiles whose total mass is the same as 1.0 {rm mol} blueberries.
what is the percent ionization of a solution made by adding 6.00 grams of ch3cooh to 100 g of water kb 0.512 ? cm if
What is the partial pressure of each of the components. b. If the temperature is raised to 45°C, will the partial pressures change? If so, what will they be
A volume of 80.0 mL of a 0.520 it M HNO_3 solution is titrated with 0.590 it M KOH. Calculate the volume of KOH required to reach the equivalence point?
In a laboratory experiment, students synthesized a new compound and found that when 14.10 grams of the compound were dissolved in 208.0 grams of ethanol, the solution began to boil at 78.9510C
balance the equation and answer in terms of moles. the disinfectant hydrogen peroxide h2o2 decomposes to form water and
The ionization energy for sodium is +496 kJ/mol. The electron affinity for chlorine is -349 kJ/mol. Use these values and Hess's law to calculate the enthalpy for the following reaction:
What is the pH of the solution created by combining 2.50 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)
exactly solution of sodium carbonate of 50.0ml nbspwas titrated with 65.8ml of 3.00m hydrochloric acid. determine what
Which of the following ions is least likely to form colored compounds- a)Mn^2+ b)Cr^5+ c)Sc^3+ d)Fe^3+ e)Co^2+
Consider a perfect gas contained in a cylinder and separated by a frictionless adiabatic piston into two sections A and B. All changes in B are isothermal. There is 2 mol of the gas in each section. Initially temperatures in both sections are 3..
A buffering system in the blood is H2CO3/HCO4. At the normal blood pH (7.4) a solution of H2CO3 and HCO3 will change the pH abruptly if small amounts of acid or base are added since the pKa of H2CO3 is 6.4.
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