Find the [OH-] given the following [H+]. a. [H+] = 1.0x10-5M
b. [H+] = 6.3x10-7M

Find the [H+] given the following [OH-].
a. [OH-] = 5.7x10-4M
b. [OH-] = 8.6x10-11M

The compound methyl butanoate smells like apples. its percent composition is 58.8% c, 9.9% h, and 31.4% o. what’s the empirical formula ?

Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent

Calculate the expected ph values of the buffer systems from the experiments (a, b,c, d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.