11. An unknown concentration of a yellow liquid has a pH of 2.3; find the [H"). a) 2.3 M
b) 0.005 M
c) 5M
d) 11.7 M.

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

What can be found in the ionosphere