Chemistry, 18.07.2019 23:30 kalialee2424
How many grams of nahco3 (fm 84.01 g/mol) should be mixed with na2co3 to produce a 1.00 l buffer solution with ph 9.50. the final concentration of na2co3 in this solution is 0.10 m. pka1 = 6.37 and pka2 = 10.33 for h2co3.
Answers: 3
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Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 Γ 10β4 .
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110 g of water (specific heat = 4.184 j/g c) and 100 g of a metal sample (specific heat = 0.397 j/g c) are heated from 25 degrees c to 75 degrees c. which substance required more thermal energy?
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8. how much enthalpy/heat is transferred when 0.5113gof ammonia (nh3) reacts with excess oxygen according| to the following equation: 4nh3 +502 - 4n0+ 6h20ah = -905.4j
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How many grams of nahco3 (fm 84.01 g/mol) should be mixed with na2co3 to produce a 1.00 l buffer sol...
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