Chemistry, 25.03.2021 14:00 marsewilliams
What is the mass of zinc required to combine with 0.5 mol of chlorine to produce zinc chloride, ZnCI[subscript 2]?
[Relative atomic mass : Zn = 65]
Answers: 1
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Pbco3 –> pbo+ co2. how many liters of carbon dioxide gas is produced from the decomposition of 32 grams of lead (ll) carbonate?
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How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.
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Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.
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Chemistry, 22.06.2019 18:00
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
What is the mass of zinc required to combine with 0.5 mol of chlorine to produce zinc chloride, ZnCI...
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