to 400g water at 70°C to make a saturated solution of Cua? 9 A solution of 100g

Question

to 400g water at 70°C to make a saturated solution of Cua? 9 A solution of 100g water at 40°C has120 g CuCl, dissolved in it, this SIudeYSatulr solution (saturated is a AU 209 10. Ifyou add 88 gacii to 100g water at 20 5gwill reman undissolved 11. Put 4 strips of pH paper on the petridish. To test the pH of each compound, add a tiny amount of each household chemical on top of the phH strip paper Record the phi in the chart below Household chemical formulapH pOH [H'] OH Acid or Base? Complete the equations: Vinegar (acetic ac 13 base base base -4 Window cleaner HHOH ]0(Ammonia) Drain cleaner (sodium Antacid (magnesium hydroxide) 12. Write the formula for. nitric acid 13. Write the formula for aluminum hydroxide 14. What is the pH of 0.001M HNO, 1S. Circle the most acidic plt plH2 pHI pH4, pH6 16.Circle the most basic pH: pH12,p119,pH10 sulfuric acid hydrobromic acid potassuom hydroxide KOH 3 0.01MNMH KOH2 0.001 M NaOH 0.0001 MHC 0.01 MKOH

Explanation / Answer

pH= -log [H+] and pOH= -log [OH-],

hence [H+]= 10(-pH) and pOH= 10(-OH)

for Vinegar, [H+]= 10-1= 0.1 and [OH-]= 10(-13)= 10-13

for NH3, pH=7, [H+]= 10-7 and [OH-]= 10-7

for NaOH, pH= 13, [H+]= 10-13, pOH= 1, [OH-]= 10-1

Mg(OH)2 ( ant acid), pH=12, [H+]= 10-12, pOH=2m [OH-]= 10-2

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