Chemistry, 08.07.2019 15:00 momof7hardings
Acompound is found to be 40.0% carbon, 6.7% hydrogen, and 53.5% oxygen. its molecular mass is 60. g/mol. what is its molecular formula?
Answers: 1
Chemistry, 21.06.2019 14:30, twinkieslayer
As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter
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Chemistry, 22.06.2019 11:30, charles8527
If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood
Answers: 2
Chemistry, 22.06.2019 18:00, kingamir
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
Acompound is found to be 40.0% carbon, 6.7% hydrogen, and 53.5% oxygen. its molecular mass is 60. g/...
Mathematics, 09.06.2020 17:57
Mathematics, 09.06.2020 17:57
Mathematics, 09.06.2020 17:57
Mathematics, 09.06.2020 17:57
Mathematics, 09.06.2020 17:57