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(a)
Interpretation:
Molarity of given
Concept Introduction:
Molarity:
Concentration of solution is given in the term of molarity it is given by,
(b)
Interpretation:
Molarity of given
Concept Introduction:
Molarity:
Concentration of solution is given in the term of molarity it is given by,
(c)
Interpretation:
Molarity of given
Concept Introduction:
Molarity:
Concentration of solution is given in the term of molarity it is given by,
Mole of substance is given by,
(d)
Interpretation:
Molarity of given
Concept Introduction:
Molarity:
Concentration of solution is given in the term of molarity it is given by,
Mole of substance is given by,
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Chapter 8 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- What is the concentration in % (w/v) of a solution prepared from 50.0 g NaCl and 2.5 L of water? A. 5.0 % B. 2.0 % O C. 0.020 % D. 0.050 % E. 0.50 %arrow_forward20 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.arrow_forwardWhat is the concentration in % (w/w), of a solution prepared by mixing 50.0 g NaCl and 150.0 g water? A. 0.250 % B. 33.3 % C. 40.0 % D. 25.0 % E. 3.00 %arrow_forward
- What is the pH when 50 ml 0.1 M NaOH is added to 100 ml 0.2 M HA? (K3= 10 Lütfen birini seçin: a. 7.6 O b. 4.5 O c. 6 d. 8.5 O e. 5.5arrow_forwardCalculate the pH of the resulting solution if 23.0 mL of 0.230 M HCl(aq) is added to 33.0 mL of 0.230 M NaOH(aq). pH = Calculate the pH of the resulting solution if 23.0 mL of 0.230 M HCl(aq) is added to 13.0 mL of 0.330 M NaOH(aq). pH=arrow_forwardA buffer contains 0.015 mol of lactic acid (pK₁ = 3.86) and 0.080 mol of sodium lactate per liter. H₂C OH Lactic acid OH Calculate the pH of the buffer. H₂C. Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of the buffer. O OH Sodium lactate Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of pure water. O Na+ buffer pH: buffer pH change: water pH change: units unitsarrow_forward
- Consider a buffer solution that contains 0.55 M NH2CH2CO2H and 0.35 M NH2CH2CO2Na. pKa(NH2CH2CO2H)=9.88. a. Calculate its pH. b. Calculate the change in pH if 0.155 g of solid NaOH is added to 250 mL of this solution. c. If the acceptable buffer range of the solution is ±0.10 pH units, calculate how many moles of H3O+ can be neutralized by 250 mL of the initial buffer.arrow_forwardAt 39.9ºC, a solution of ethanol (XetOH = 0.9006, P * etOH = 130.4 Torr) and isooctane (P * iso = 43.9 Torr) forms a vapor phase with YetOH = 0.6667. The total pressure is 185.9 a. Calculate the activity and the activity coefficient of each component.b. Calculate the total pressure the solution would have if it were ideal.c. Comparing the ideal pressure to the actual pressure, what does this indicate about the molecular interactions?arrow_forwardAs shown in the image below, 10 µl of a stock solution (tube #1) are serially diluted into 0.990 ml of buffer. a. What is the dilution factor for this serial dilution? b. If the concentration of the stock solution in tube #1 is 0.8 M, what is the concentration of the solution in tube #3? 10 ul 10 l 10 0.990 ml SM buffer 0.990 ml SM buffer 0.990 ml SM buffer Tube #1 tube #2 tube #3 tube #4 For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).arrow_forward
- You dissolve a 3.435 gram sample of potato in acid to determine the levels of solanine (the reason why green potatoes are poisonous) and diluted it to a total volume of 500.0 mL. You have also created a standard curve as outlined below. Solve for the ug/gram concentration of solanine in the potato sample. ppm Solanine Std. Abs 0.213 5 0.315 10 0.423 15 0.532 Unknown sample 0.314 Your Answer:arrow_forwardEstimate the pH of a 7.18 x 106 M HF solution. You can calculate the lowest possible pH, knowing that the actual value will be higher. Your answer should contain 3 decimal places as this corresponds to 3 significant figures when dealing with logs. pH will be above Select the solution with the highest pH. Multiple Choice 0.0225 MLIOH 0.0225 MH2CO3 0.0225 MCH3NH2arrow_forwardIf a patient weighing 175 lb is to receive an initial daily IM dosage of procainamide HCI (500 mg/mL vial) of 50 mg/kg to be given in divided doses every 3 hours. How many milliliters should each injection contain? O a. 3.98 mL O b. 8.23 mL O C. 0.49 mL O d. 0.99 mL O e. 1.87 mLarrow_forward