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Calcium hydroxide reacts with carbon dioxide to form calcium carbonate. The reaction for this process is: Ca(OH)2(s) + CO2(g) ? CaCO3(s) + H2O(g), ?H = -69.1 kJ What is the enthalpy change if 380 g of calcium carbonate is formed? Can you show me the step by step process?
An equilibrium mixture contains .870 mol I2, and .290 mol H2 in a 1.00 L flask. I found the equilibruim constant to be .172 which is correct.
A certain weak base has a Kb of 7.80 × 10-7. What concentration of this base will produce a pH of 10.16
write the half reaction for oxidation of n-butanol. (d) Calculate Eo' at 25.0 oC for the n-butanol half reaction in (c) above
A 30.00 mL volume of a weak acid, HA, (Ka = 3.8 x 10^-6) is titrated with 39.00 mL of 0.0958 M NaOH to the equivalence point. What is the pH of the analyte solution before any base is added to it
What is the relationship between the standard cell potentials, E, for the following two galvanic cell reactions?
What wavelength of light would be absorbed in raising an electron from the second level to the third level.
a 1.00 L solution contains 4*10^-4 M Cu(NO3)2 and 1.6*10^-3 M ethyleneddiamine. the Kf for Cu(en)2^2+ is 1*10^20, what is the concentration of Cu+2 in the solution
Draw the base pairing between 8-oxoguanine and cytosine and 8-oxoguanine and adenine. Use single bonds to represent hydrogen bonds.
How many grams of dry NH_4Cl need to be added to 1.60 of a 0.700 solution of ammonia, , to prepare a buffer solution that has a of 8.98. for ammonia is.
When the reaction that occurs finally ceases, what will be the mass of unreacted copper in the bar? What will be the mass of silver metal that "plates out" of solution (that is, what mass of silver metal is produced by the reaction)
what is the structure of A 1:1 molar ratio of methane and oxygen, and calculate the oxygen balance
What type of mineral source (sulfide, oxide, halide, phosphate, silicate, carbonate, etc) are the following elements typically isolated from? Write the chemical formula for the source mineral (for example: silver, typical mineral source = silver s..
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