Chemistry, 23.11.2019 04:31 maddiecat43551p2rueh
An oxide of nitrogen was found by elemental analysis to contain 30.4% nitrogen and 69.6% oxygen. if 23.0 g of this gas were found to occupy 5.6 l at stp, what are the empirical and molecular formulas for this oxide of nitrogen?
express the empirical and molecular formulas for this oxide of nitrogen, separated by a comma.
Answers: 2
Chemistry, 22.06.2019 16:50, TrueKing184
Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 1
Chemistry, 22.06.2019 22:00, jespinozagarcia805
In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a. rectant b. product c. supernate
Answers: 3
Chemistry, 23.06.2019 03:30, LlayahHarbin
Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon
Answers: 1
An oxide of nitrogen was found by elemental analysis to contain 30.4% nitrogen and 69.6% oxygen. if...
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