# OSU Ch 123

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1. another name for molar
molarity (mol/L)
2. 1) -formula for pH from molarity of an element or substance?
&
-formula for pH from H+ concentration?
pH=-log[H+]
3. B-L (Bronsted-Lowry) acid & base def?
Acid: proton/H+ donor.

Base: proton/H+ acceptor.
4. Write the conjugate pair of HClO4^-, & NH3.
H2ClO4, NH4^+
5. Formula for H from OH?
OH+H=14, so subtract the one you don't have from the one you do.
6. Who's definition of Acids and bases is:
Acid: a substance that produces H+ ions in aqueous solutions
Base: a substance that produces OH- ions in aqueous solution.
Arrhenius's definition
7. Is water a proton donor or acceptor?
both.  H2O will auto-ionize to form H3O+ and OH-
8. formula for acid strength and acid ionization constant (K).
Products/reactant or [A][B]/[C] when C->AB
9. How to you write the charge on a molecule in "mastering chem"
• HN4+
• Don't use the one that puts the superscript and subscript vertical.
10. draw the conversions from  pOH, H+, OH, pH.
11. how do you convert moles (M) of a substance to H+, for example?

What's the pH of 0.65M of HBr?
-log(0.65)=.19 (sounded up for 2 SF)
12. How do you calculate the the ph of a molecule for a base or an acid based on it's moles (M)?
• Acids are calculated using [H], and
• bases are calculated using [OH]
13. find the Kw for a solution with the pH of 7.41 at a given temperature.
107.41=3.89*10-8M [H+]2=1.51*10-15

Kw=[H+][OH-]=10^14
 Author: studysuccess ID: 313904 Card Set: OSU Ch 123 Updated: 2016-01-11 00:49:11 Tags: OSU 123 Folders: OSU Ch 123 Description: OSU Ch 123 Show Answers: