Chemistry - March 2007

Which of the following are true statements for the given compound in aqueous solution ?



a) Cl - : A Lewis base, but not a Bronsted base

b) F - : A Bronsted base and a Lewis base

c) CH3CH2CH2COOH : A Lewis acid, but not a Bronsted acid

d) Cr 3+(aq) : A Lewis acid, but not a Bronsted acid

e) CH3CH2CH2CH3 : Both a Bronsted acid and a Lewis acid



I know the difference between a lewis and bronsted but im not sure how to determine it from the compounds given

2007-03-13 16:10:36 · 1 answers · asked by giggles9783 1

Calculate the standard enthalpy of formation of nitroglycerine using the following thermochemical equation... (subscript will be denoted by brackets)... all reactants are liquid, all products are gasses.
4C(3)H(5)O(9)N(3) => 12CO(2) + 6N(2) + O(2) +6725 kilojoule

2007-03-13 16:09:06 · 1 answers · asked by Anonymous

2007-03-13 16:07:38 · 3 answers · asked by Anonymous

In Mg + 2H2SO4 yields MgSO4 + SO2 + H2O....

How would I tell what would be reduced?

Mg is oxidized, right? and what is reduced?

2007-03-13 15:59:12 · 1 answers · asked by ma.roddy 1

2007-03-13 15:50:52 · 4 answers · asked by Anonymous

a) Cl - : A Lewis base, but not a Bronsted base

b) F - : A Bronsted base and a Lewis base

c) CH3COOH : A Lewis acid, but not a Bronsted acid

d) Cu 2+(aq) : A Bronsted acid, but not a Lewis acid

e) C6H6 : Both a Bronsted acid and a Lewis acid

2007-03-13 15:44:50 · 1 answers · asked by Mononkeneo 1

(a)ethanoic acid.
(b)methoxyethanoic acid.
(c)trifluroethanoic acid.
Arrange in the order of increasing acid strength.

trifluroethanoic acid is a stronger acid than ethanoic acid because of negative inductive effect of electron withdrawing flourine atoms.

How to explain da acid strength of methoxyethanoic acid w.r.t the other two compounds? Plz Help.

2007-03-13 15:43:46 · 1 answers · asked by hurricane yahoo 1

How do I find out what the Oxidized species is and what the Reduced Species is?

2007-03-13 15:41:00 · 2 answers · asked by ma.roddy 1

2007-03-13 15:24:42 · 7 answers · asked by Anonymous

a)NaCl
b)CH3CH2OH
c)C3H8

2007-03-13 15:15:37 · 6 answers · asked by maria m 1

2007-03-13 15:01:55 · 1 answers · asked by Anonymous

2007-03-13 14:59:02 · 3 answers · asked by Anonymous

100.mL of 0.200 M HCl is titrated with 0.250 M NaOH.

What is the pH of the solution at the equivalence point?.

2007-03-13 14:56:52 · 3 answers · asked by xo_cristina_xo 1

1.657 * 10^14 meters?

2007-03-13 14:53:20 · 2 answers · asked by Anonymous

9.What would be the approximate equilibrium constant, Keq, of the reaction
PhO- + C5H6 → PhOH + C5H5- ?

[PhOH is phenol, and C5H6 is cyclopentadiene.]

A. About 10e10
B. About 10e-10
C. About 10e6
D. About 10e-6
E. About 10e-16

As information i have these:

Approximate pKa values: RCOOH 4.8; ArOH 10; cyclopentadiene 16; ROH 16; RC≡CH 25; RNH2 38; RCH=CH2 44; RCH3 51.

How am i able to solve these example...?

2007-03-13 14:49:54 · 2 answers · asked by Tommy 2

Element A has an outer shell configuration of 2s2 2p3. Element B has an outer shell configuration of 3s2 3p5.What is the formula for the most likely compound of A and B?

2007-03-13 14:45:25 · 2 answers · asked by Blesson 2

2007-03-13 14:42:27 · 2 answers · asked by jr 2

CH3CH2CH3
CH2CCH2
CH3CH2CHCHCH3
C6H6

2007-03-13 14:40:20 · 2 answers · asked by William R 1

2007-03-13 14:40:09 · 1 answers · asked by chemistrygirl 1

Need help with this chemistry question?
Which of the following are true statements for the given compound in aqueous solution ?



a) HCl : A Bronsted acid and a Lewis acid

b) HN3 : A Bronsted base, but not a Lewis base

c) CH3COOH : A Lewis acid, but not a Bronsted acid

d) Fe 3+(aq) : A Lewis acid, but not a Bronsted acid

e) C6H6 : Neutral, not an acid or base of any kind

2007-03-13 14:38:58 · 2 answers · asked by tiggerx313 1

What volume (mL) of 0.204 M potassium hydroxide solution would just neutralize 32.8 ml of 0.123 M H2SO4 solution?

2007-03-13 14:37:37 · 3 answers · asked by tiggerx313 1

2007-03-13 14:35:19 · 1 answers · asked by Vritika B 1

C2F4
NH2CH2COOH
C5H2
CH2CHCl

2007-03-13 14:31:46 · 1 answers · asked by William R 1

a) 3.01 x 10^23 atoms of S (sulfur)

b) 2.41 x 10^24 molecules of H2O (water)

please include step by step instructions....

2007-03-13 14:20:18 · 2 answers · asked by =) 4

Need all the info I can get on phenol, especially who discovered it.

Thanks in advance

2007-03-13 14:19:25 · 1 answers · asked by some guy 1

C5H10 + O2 ----> CO2 +H2O



C5H10 + O2 -----> Co2 + H2O


I don't really know if it is CO2 or Co2...so yeah....if someone can help me with both, that would be great!

2007-03-13 14:18:48 · 1 answers · asked by maryflo 2

a)aluminum nitrate (aq) + sodium hydroxide (aq) --> aluminum hydroxide (c) + sodium nitrate (aq)

b)potassium chlorate (c) ---> potassium chloride (c) + oxygen gas (g)

2007-03-13 14:14:30 · 1 answers · asked by Lore 1

2007-03-13 14:08:35 · 1 answers · asked by Monica S 2

the following equation?

CO (g) + 2H2 (g) yields Ch3OH (l)

2007-03-13 14:05:02 · 1 answers · asked by Ciavana 3

I really don't understand how to solve these types of problems; if you have any website or information, it would really help.

2007-03-13 14:05:02 · 2 answers · asked by Sam 1