You need 2.7 moles of Selenium (Se) for a reaction at STP. What volume of selenium must you measure?

8.30 L

0 0.12 L

33.6 L

0 60.48 L

answer: option (a) is the correct answer.

explanation:

the measurement of hydrogen ions in a solution is known as ph.

if ph of a solution is less than 7 then the solution is acidic. if ph of a solution is greater than 7 then the solution is basic.

when the ph of a solution equals 7, then the solution is considered as neutral.

the ph of pure water is 7, therefore, it means that concentration of hydronium ions equals that of hydroxide ions.