Chemistry, 02.07.2020 20:01 aaliyahrice02
What is the area of triangle PQR? Round to the nearest tenth of a square unit. 70.5 square units 111.3 square units 185.4 square units 222.5 square units
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Chemistry, 22.06.2019 01:00
Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon
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Chemistry, 22.06.2019 19:10
Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m
Answers: 1
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9Γ10β3 , =6.2Γ10β8 , and =4.8Γ10β13 ). to find the ph of a buffer composed of h2poβ4(aq) and hpo2β4(aq) , which p value should be used in the hendersonβhasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
What is the area of triangle PQR? Round to the nearest tenth of a square unit. 70.5 square units 111...
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