subject
Chemistry, 09.12.2019 22:31 Alangs

Achemistry graduate student is given 300. ml of a 1.80 m nitrous acid (hno_2) solution. nitrous acis is a weak acid with k_a = 4.5 times 10^-4. what mass of nano_2 should the student dissolve in the hno_2 solution to turn it into a buffer with ph = 2.94? you may assume that the volume of the solution doesn't change when the nano_2 is dissolved in it. be sure your answer has a unit symbol, and round it to 2 significant digits.

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 22:20
Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.
Answers: 1
question
Chemistry, 22.06.2019 08:50
If two atoms are bonded to a central atom with no lone pairs,how will they be arranged
Answers: 3
question
Chemistry, 22.06.2019 09:30
Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature
Answers: 3
question
Chemistry, 22.06.2019 18:30
Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o
Answers: 2
You know the right answer?
Achemistry graduate student is given 300. ml of a 1.80 m nitrous acid (hno_2) solution. nitrous acis...
Questions
question
History, 06.11.2019 21:31
question
Chemistry, 06.11.2019 21:31
question
Mathematics, 06.11.2019 21:31
question
Biology, 06.11.2019 21:31
Questions on the website: 13722367