Give the oxidation number of the element indicated for each compound.
a) carbon in Na2C...
Chemistry, 21.02.2020 16:20 briannagiddens
Give the oxidation number of the element indicated for each compound.
a) carbon in Na2C2O4
b) nitrogen in HNO3
c) sulfur in H2SO4
d) carbon in HCO3 −
e) manganese in KMnO4
f) chromium in Cr2O7 2−
Answers: 2
Chemistry, 21.06.2019 21:30, leslyrivera11
If i make a solution by adding 83grams of sodium hydroxide to 750ml i’d water what is the molarity of sodium hydroxide
Answers: 1
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
Chemistry, 22.06.2019 23:00, lulprettyb
What is the most common reason for matter changing its state?
Answers: 1
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