Chemistry, 18.09.2019 00:30 moongirl4791
You have been asked to prepare an 8.50m solution of sodium hydroxide, naoh in a 250ml volumetric flask. how many grams of solute will you have to mass on the balance?
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The atomic number, or number, is the described as the number of in the nucleus of an chemical element.
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Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
You have been asked to prepare an 8.50m solution of sodium hydroxide, naoh in a 250ml volumetric fla...
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