S I NEED SOME ONE TO HELP ME IN IGCSE CHEMISTRY , LIKE EXPLAIN STUFF FOR ME SO BASICALLY A TUTOR. IF U CAN HELP OR KNOW SOMEONE , PL HELP MY EXAMS ARE ON 3 MONTHS AND I KNOW NOTHING
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10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Provide a stepwise curved arrow mechanism that fully explains the outcome of the reaction shown below. oh нао* heat он