homework help: Hey I need some chemistry help. - Help.com

Hey I need some chemistry help.

These are two questions I need answered:

Which of the following pairs of compounds could be mixed to produce a buffer solution?
A. CH3NH3I and HI
B. CH3NH2 and CH3NH3I
C. CH3NH3I and NH4I
D. HI and NH4I
E. CH3NH2 and NH3

How much 2-M H2O4 is required to neutralize 100 mL of 2-M NaOH?
A. 50 mL
B. 100 mL
C. 150 mL
D. 200 mL
E. 500 mL

For the first question, I can’t get it because I don’t know whether CH3NH3I is a base or an acid. I know it’s not D, as both are acids, and E, because both are bases. The second one I’m completely lost on — admittedly. I know it’s not B.

Thanks in advance!

This closed post was written 4 months, 4 weeks ago | V/U/S: 307, 8, 2 | Edit Post | Report Post

chemistry, Acid, Solution, question, Buffer solution, Methylamine, Buffer, Base, Advance, lost, homework (How Tags Affect Reciprocity)

wh #
An Unknown Location | 4 months, 4 weeks ago (15 minutes after post)

CH3NH3I is acidic.

CH3NH3I is acidic.

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bismarck 0 #
An Unknown Location | 4 months, 4 weeks ago (15 minutes after post)

Woo thanks. So it’d be B then?

Woo thanks. So it'd be B then?

bismarck 0 #
An Unknown Location | 4 months, 4 weeks ago (17 minutes after post)

Oh, and how do you know that? What’s the rule in that case?

Oh, and how do you know that? What's the rule in that case?

wh #
An Unknown Location | 4 months, 4 weeks ago (23 minutes after post)

I don’t know chemistry. I used google. Second question if you meant H2SO4 (not H2O4) then:
Since both protons in H2SO4 are acidic protons relative to NaOH, both H’s will react with NaOH. Thus, a balanced chemical reaction is written as:
H2SO4 + 2NaOH = Na2SO4 + 2H2O
This indicates that 2 moles of NaOH are needed to fully react with 1 mole of H2SO4 (per mole of reaction).

I don't know chemistry. I used google. Second question if you meant H2SO4 (not H2O4) then: Since both protons in H2SO4 are acidic protons relative to NaOH, both H's will react with NaOH. Thus, a balanced chemical reaction is written as: H2SO4 + 2NaOH = Na2SO4 + 2H2O This indicates that 2 moles of NaOH are needed to fully react with 1 mole of H2SO4 (per mole of reaction).

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bismarck 0 #
An Unknown Location | 4 months, 4 weeks ago (25 minutes after post)

That’s funny, I put it into google myself, and brought up no responses. Well, hehe, I guess you’re a much better searcher than me. Thanks.

On the 2nd question, I indeed meant H2O4. I wish it was H2SO4 — that’d be much much more simple.

That's funny, I put it into google myself, and brought up no responses. Well, hehe, I guess you're a much better searcher than me. Thanks. On the 2nd question, I indeed meant H2O4. I wish it was H2SO4 -- that'd be much much more simple.

bismarck 0 #
An Unknown Location | 4 months, 4 weeks ago (34 minutes after post)

This was a kind of online homework assignment that needed to be submitted.

I went with the B response and it was right
For the other question, I guessed “50 mL,” as you suggested, and it was also right.

Thanks!

This was a kind of online homework assignment that needed to be submitted. I went with the B response and it was right For the other question, I guessed "50 mL," as you suggested, and it was also right. Thanks!

wh #
An Unknown Location | 4 months, 4 weeks ago (36 minutes after post)

Np ;)

Np ;)

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This post has been closed, no more replies. Thanks!

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