Chemistry, 14.11.2019 03:31 THEOUTCOMER
Abuffer is prepared by adding 150 ml of 1.0 m naoh to 250 ml of 1.0 m nah2po4. how many moles of hcl must be added to this buffer solution to change the ph by 0.18 units? assume the total volume remains unchanged at 400 ml. for h2po4-, ka2 = 6.3 × 10^-8.
o 0.063 mol
o 1.0 mol
o 0.025 mol
o 0.082 mol
o 0.50 mol
Answers: 3
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Can someone me with 3 and 4 plz. this is for masteries test.
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Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .
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Abuffer is prepared by adding 150 ml of 1.0 m naoh to 250 ml of 1.0 m nah2po4. how many moles of hcl...
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