1. Calculate the pH of the following solutions:A. [H+] = 1.36 x 10-9 MВ. [ОН] —D 3.86 x 10-8 М2. Calculate the pOH of the following solutions:A. [OH-] = 8.6 x 10-8 MВ. рH %3D 3.23. What is the pH of a buffer prepared by mixing 100 ml 0.050 mM NAH2PO4 and 25 ml0.075 mM Na2HPO4?(рКa1%32.2; рКо23 7.21; pКаз312.7)

1A- ph= -logH+ = -log 1.36 × 10^-9 = 9- log 1.36 pH=9-0.133 = 8.867 1B- pOH = -logOH- = -log…

Answered: 1. Calculate the pH of the following…

Curren'S Math For Meds: Dosages & Sol

11th Edition

ISBN:9781305143531

Author:CURREN

Publisher:CURREN

Chapter9: Parenteral Medication Labels And Dosage Calculation

Section: Chapter Questions

Problem 3.3P

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At a pH of 7.40, the carbonic acid ratio is ________. a. 35:1 b. 4:1 c. 20:1 d. 3:1
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1. What mass of potassium nitrate KNO3 should be added to 255 g of water to prepare a 15% (m/m) solution of KNO3? [Molar mass KNO3= 101.1 g/mole] 2. Determine the mass of sodium chloride (NaCl) required to prepare a 300 ml Mueller-Hinton broth solution supplemented with 5.5% (wt/vol) sodium chloride solution. [Mwt NaCl = 58.44 g/mol] 3. You have dissolved 45 g of magnesium sulphate in 300 ml distilled water (dH2O). What is the concentration of this MgSO4 solution expressed as % (m/v)? [Mwt MgSO4 = 120.37 g/mol]
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2 if there is a stock solution of 2000 (ug/ml) , is it possible to use SERIAL DILUTION to generate the following 8 tubes with their concentrations? A 2000 (ug/ml) B 1500 (ug/ml) C 1000 (ug/ml) D 750 (ug/ml) E 500 (ug/ml) F 250 (ug/ml) G 125 (ug/ml) H 0 (ug/ml)
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Benzalkonium chloride 17% w/v . . . . . qs Water qs . . . . . . . . . . . . . . . . . . . . . . 120 mL M. ft . solution such that 2 tbsp added to a pint of water will yield a 1:750 solution. How many milliliters of the 17% w/v stock solution will be needed to prepare the 120 mL? a 2.68 mL b 7.90 mL c 15.80 mL d 20.40 mL e 6.28 mL
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20 mL solution is 2 M NaOH. If 0.5 M HCl is to be added to this solution, calculate the pH of the resulting solution: A. when 10 mL of the 0.5 M HCl is added to the original solution of the base (initial pH). B. When 50 mL H20 is added to the original solution of the base.
1. Differentiate the following: a. pH from pOH ____________________________________________________________________________________________________________________________________________________________ b. Ka from Kb ____________________________________________________________________________________________________________________________________________________________ c. Pka from Pkb ____________________________________________________________________________________________________________________________________________________________ d. Kw from pKw ____________________________________________________________________________________________________________________________________________________________ 2. What is the importance of buffer systems in the human body?…
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1. Calculate the pH of the following solutions: A. [H+] = 1.36 x 10-9 M B. [OH] = 3.86 x 10-8 M 2. Calculate the pOH of the following solutions: A. [OH] = 8.6 x 10-8 M B. pH = 3.2 %3D