More Gchem

[_veo_]

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Just 3 more 😳

What is the molarity of an aqueous H2SO4 solution
which has a specific gravity of 1.75 and is 39.2%
H2SO4 by mass?
A.( 0 . 392 )(1 . 75)
( 98)(0 . 02)

B.( 0 . 392 )(0 . 02)
( 98)(1 . 75)

C.( 0 . 02)(1 . 75)
( 0 . 392 )(98)

D.( 1750) ( 98)
( 0 . 392 )

E. ( 0 . 392 ) ( 1750)/98

Which of the following, if added to a saturated aqueous
solution of NaCl, would most effectively reduce the
chloride ion concentration?
A. AgNO3
B. Ba(NO3)2
C. K2SO4
D. H2S
E. CH3COOH

Which reaction will not proceed?
A. Li + CuCl2 →
B. Zn + NaNO3 →
C. CaCO3 + HCl →
D. K + H2O →
E. H+ + OH– →

 

[_veo_]

anyone? Pleaseeeeeeee

 

[aranjuez]

Number 1 is E. Check out that post I have in the "hard specific gravity question" topic.

aranjuez

 

[_veo_]

Number 1 is E. Check out that post I have in the "hard specific gravity question" topic.

aranjuez

thank you, i just saw it

 

[fancymylotus]

the second one is A-to reduce [Cl], youre looking for something that will precipitate out with it. AgCl is a ppt, so the answer is A.

 

[GRAD]

the third one is B- it wont happen

 

[_veo_]

the second one is A-to reduce [Cl], youre looking for something that will precipitate out with it. AgCl is a ppt, so the answer is A.

Thanks, that's the answer. But I was confused because I was thinking that K can also precipitate with Cl. I'm not sure

 

[_veo_]

the third one is B- it wont happen

How do you know it won't happen?

 

[GRAD]

i guess cause have you ever heard of ZnNo3?

 

[thefifthbeatle]

i guess cause have you ever heard of ZnNo3?

and transition metals cant replace group 1a or 11a elements

 

[Manyak222]

What about AgCl, ZnCl2? They can replace group 1 or 2 elements, and ZnNO3 is possible.

and transition metals cant replace group 1a or 11a elements