The pH of an unknown 0.0100M solution is 3.25. Which of the following could be true about the solution? A. It is a strong acid. B. It is a strong base. C. It is a weak acid. D. It is a weak base. E. A Ka value or other information is needed to answer this question

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o