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Chemistry, 22.06.2019 06:30
Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
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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]
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Chemistry, 22.06.2019 19:30
What is the common name for the compound shown here? enter the common name of the compound shown?
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Chemistry, 23.06.2019 10:30
How much mass would a mole of hydrogen molecules contain? recall that hydrogen is diatomic. g/mol
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It’s a group of Native American tribes that come together to help protect each other. What’s the hid...
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