Question

HELP PLEASE FAN/MEDAL
im three weeks behind and im stuck on these type of questions
Calculate the [H^+] for the aqueous solution in which [OH^-] is 1 x10^-3. Is this solution acidic, basic or neutral? Show your work

Answer 1

@dayakar ?? sry idk if u helped me w chem or math before

Answer 2

Because [H+][OH-]= Kw = 1.0 x 10^-14

[H+]= Kw/ [OH-]= 1.0x 10^-14 / 1 x 10^-11 =1 x 10^-3 mol/L

pH = - log [H+]= - log 1 x 10^-3 = 3 < 7
the solution is acidic

Answer 3

OHHHHHHHHH @anthony1914 that makes so much sense could you help me with one more?

Answer 4

sure

Answer 5

what grade are you in

Answer 6

10

Answer 7

lassify each solution as either an acid or a base using the properties that are stated. What are two ways these solutions are similar? Solution A – has a bitter taste and feels slippery. Solution B – has a sour taste and feels sticky.

Answer 8

I think a is a base and b is an acid bc of the taste, but idk what the feel has to do w anything?

Answer 9

also LASTONE I PROMISE can you check my answer?
5. (1 point) What mass of Na2SO4 is needed to make 1.5 L of 3.0 M solution? (Na = 23 g; S = 32 g; O = 16 g) *
Numbers in chemical formulas are subscripts unless there is a ^ to make it superscript
• 142 g
-->• 213 g
• 639 g
• 1,280 g

Answer 10

solution a is a base

Answer 11

so b is a acid

Answer 12

okay, thank you! is 5 right?

Answer 13

no i dont think so
1 sec

Answer 14

i belive you were right

Answer 15

okay thank you!!