3 Calculate the hydronium ion concentration in each of the following solutions, and label each as acidic, basic, or neutral. Solution pH [H3O+] Acidic/Basic/Neutral 12.1 221 70 7.0 6.2
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![3 Calculate the hydronium ion concentration in each of the following solutions, and label each as acidic, basic, or neutral.
Solution pH
[H3O+]
Acidic/Basic/Neutral
12.1
221
70
7.0
6.2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F19488446-1c7a-4063-9a41-4496708c72fb%2Fe9bf9982-94c6-4330-9436-b33b1af6af44%2Fhk0ff86_processed.jpeg&w=3840&q=75)
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- 47)9. 3 μL of a 45 mM stock solution of a substrate is added to 8 mL of water. Calculate the following values. The substrate molecular weight is 125 g/mol. Substrate volume in mL Dilution factor Substrate number of moles Substrate concentration for the diluted solution in mM Substrate concentration for the diluted solution in mole/L Substrate concentration for the diluted solution in mg/mLCalculate the boiling points of a 8.50 m aqueous solution of fructose. Boiling point constants can be found in the list of constant. Tb= In Celsius
- What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to produce a buffer solution with a pH of 4.00? Ka = 1.47 x 10-4You are supplied with the following: / Jy word voorsien van die volgende: NaCl (Mr= 58,443 g /mol) 2.5M Tris-Cl, pH 8 solution /oplossing (1 Litre) EDTA (Mr= 380,2g/mol) 10% sodium dodecyl sulphate solution / natriumdodecyl sulfaat oplossing Proteïnase K solution / oplossing (50 mg dissolved / opgelos in 1 ml ddH2O) You need a digestion buffer consisting of the following: / Jy moet 'n verteringsbuffer op maak wat uit die volgende bestaan: 15m M NaCl 75 mM Tris-Cl,pH 8 16 mM EDTA,pH 8 0.8% sodium sulphate / natrium dodecyl sulfaat 0,75 mg/ml proteïnase K How will you prepare 500 ml of the digestion buffer? Show all your steps and calculations. Remember to explain exactly how you will make it up. / Hoe sal jy 500 ml van die verteringsbuffer voorberei? Wys al jou stappe en berekeninge. Onthou om te verduidelik presies hoe jy dit sal op maak.1
- A 0.200 M solution of a weak monoprotic acid (HA) has a pH of 2.35. What is the value of K of this acid? a K =2.011e-4 a What is the percent ionization of this acid? Percent Ionization = .10 %What kind of buffer would you make with a optimal activity at ph 4.30?What is the approximate pH of a solution labeled 6 x 10-5 M HBr? * 4.2 4.5 5.8 9.8 8.2
- 2) Calculate the pH during the titration of 20.00 mL of 0.1000 M butanoic acid (K,-1.54x10%) with 0.1000 M NaOH solution after the following additions .0 mL .10.00 mL 15.00 mL 19.00 mL .19.95 mL . • 20.00 mL • 20.05 mL . 25.00 mLCalculate the normality of a solution that contains 4.5 g of (COOH)2 in 3000 mL of solution? (Assume the (COOH)2 is to be completely neutralized in an acid-base * reaction.) 0.033 N O 0.33 N O 0.166 N O 0.0166 N 0.45 N O 0.045 N 000.0 OOcalculate the pH of a 0.10M solution of formic acid. the Ka of formic acid is 1.8x10^-4