1. Calculate the mass-volume percent of a solution made by dissolving 22.0 g of CH3OH (methanol) in C₂H5OH (ethanol) to make 100. mL of solution. answer: 22.0% m/v What is the volume percent of 10.0 mL of methanol dissolved in water to a volume of 40.0 mL? 2. answer: 25.0 % V/V 3. If I have 125 grams of a 2.5 % (m/m) solution of NaCl, how many grams of NaCl are in this solution? the volume of answer: 3.1 g NaCl solution from a 12 C) solution.

1. Calculate the mass-volume percent of a solution made by dissolving 22.0 g of CH3OH (methanol) in C₂H5OH (ethanol) to make 100. mL of solution. answer: 22.0% m/v What is the volume percent of 10.0 mL of methanol dissolved in water to a volume of 40.0 mL? 2. answer: 25.0 % V/V 3. If I have 125 grams of a 2.5 % (m/m) solution of NaCl, how many grams of NaCl are in this solution? the volume of answer: 3.1 g NaCl solution from a 12 C) solution.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 138CP: Specifications for lactated Ringers solution, which is used for intravenous (IV) injections, are as...

See similar textbooks

Similar questions

Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray contrast agent that aids with the radiologic imaging of the anatomy. One such contrast agent is sodium diatrizoate, a nonvolatile water-soluble compound. A 0.378-m solution is prepared by dissolving 38.4 g sodium diatrizoate (NaDTZ) in.l.60 102 mL water at 3 1.2C (the density of water at 31.2C is 0.995 g/cm3). What is the molar mass of sodium diatrizoate? What is the vapor pressure of this solution if the vapor pressure of pure water at 31.2C is 34.1 torr?
6-35 Describe how we would prepare the following solutions: (a) 280. mL of a 27% v/v solution of ethanol C2H6O, in water (b) 435 mL of a 1.8% v/v solution of ethyl acetate, C4H8O2 in water (c) 1.65 L of an 8.00% v/v solution of benzene C6H6, in chloroform, CHCI3
A gaseous solute dissolves in water. The solution process has H=15 kJ. Its solubility at 22C and 6.00 atm is 0.0300 M. Would you expect the solubility to be greater or less at (a) 22C and 1 atm? (a) 18C and 6 atm? (a) 15C and 10 atm? (a) 35C and 3 atm?
Specifications for lactated Ringers solution, which is used for intravenous (IV) injections, are as follows to reach 100. mL of solution: 285315 mg Na+ 14.117.3 mg K+ 4.9Q.O mg Ca2+ 368408 mg Cl 231261 mg lactate, C3H5O3 a. Specify the amount of NaCl, KCl, CaCl2 2H2O, and NaC3H5O3 needed to prepare 100. mL lactated Ringers solution. b. What is the range of the osmotic pressure of the solution at 37C, given the preceding specifications?
How many grams of CaCl2are needed to make 314.0 g of a solution that is 30.0% w/w calcium chloride in water? How many grams of water are needed? 2. Isopropyl alcohol is mixed with water to produce a 36.0% v/v alcohol solution. How many mL of each liquid are present in 865 mL of this solution? (Assume the volumes are additive.) 3. Calculate the molarity of 27.7 g of MgS in 760.0 mL of solution. 4. If 6.35 g of Cu(NO3)2 is dissolved in water to make a 0.750 M solution, what is the volume of the solution (in mL)?
1. How many milliliters of solute are needed to make 840. mL of a 16.5% (v/v) acetic acid solution? Do not include units in your answer. 2. Calculate the volume in milliliters of a 2.200 M K2SO4 solution to obtain 3.000 mil of K2SO4. Do not include units.
1. You have dissolved 30 g of magnesium sulphate in 270 g distilled water (dH2O). What is the concentration of this MgSO4 solution expressed as % (m/m)? [Mwt MgSO4 = 120.37 g/mol] 2. Determine the volumes of phenol, chloroform, and isoamyl alcohol required to prepare 250 ml of a 25:24:1 (v/v) solution 3. Determine the volume of methanol that is required to prepare a 400 ml of a (30% v/v) solution. [Unless explicitly stated assume methanol is at 100%]
C7H21O4NHCl(aq) + NaOH(aq) ---> C17H21O4N(aq) + H2O (l) + NaCl(aq) When a 25mL of aqueous solution that contains 62.50g of the salt is treated with NaOH, the salt is converted to pure cocaine. How much water in litres is needed additionally to dissolve the formed pure cocaine?
What is the molarity of a 750 mL solution that contains 10.0 grams of Silver Nitrate, AgNO3? To what volume should 5.5 g of KCl be diluted to prepare a 0.25 M solution? Calculate the % by mass of 2 g sucrose in 80 g water. Determine the v/v percent solution made by combining 25 mL of ethanol with enough water to produce 200 mL of the solution. How many moles of NaCl are present in 600 mL of a 1.55 M NaCl solution? How many grams of Ca (OH)2 are needed to produce 500 mL of 1.66 M Ca (OH)2 solution?
You have stock solution of CuSO4 with a concentration of 0.25 M. How would you prepare a 25 mL solution of 20 mM CuSO4? A) Take 5 mL of stock solution and dilute it with water to 25 mL. B) Take 5000 ml of stock solution and dilute it with water to 25 mL C) Take 2ml of stock solution and dilute it with water to 25 mL. D)Take 2 uL of stock solution and dilute it with water to 25 mL.
I just want to be sure if my answers (and units) are correct: 1. What is the molarity of a 750 mL solution that contains 10.0 grams of Silver Nitrate, AgNO3? 0.08 M 2. To what volume should 5.5 g of KCl be diluted to prepare a 0.25 M solution? 0.28 L 3. Calculate the % by mass of 2 g sucrose in 80 g water. 2.44 % Sucrose 4. Determine the v/v percent solution made by combining 25 mL of ethanol with enough water to produce 200 mL of the solution. 12.5 % Ethanol 5. How many moles of NaCl are present in 600 mL of a 1.55 M NaCl solution? 0.93 moles of NaCl 6. How many grams of Ca (OH)2 are needed to produce 500 mL of 1.66 M Ca (OH)2 solution? 61.49 g of Ca(OH)2
Compute the weight (g) of solute needed to make the solutions listed below: 1250mL of 0.85 AlCl3 500L of 9.25N K2SO4 350g of 13.2%w/w of Ca(OH)2 Calculate the %w/v of a solution made by dissolving 22.0g CH3OH (methanol) in C2H5OH (ethanol) to make 100mL solution. What is the %v/v of 10mL CH3OH (methanol) dissolved in water to a volume of 40mL. A solution is prepared at 25degrees C by mixing 20g of K2SO4 with 150mL of water. The density of water at this temperature is 1g/mL. What is the m of K2SO4. An aqueous solution of hydrofluoric acid is 12.5 molal with respect to HF and has a density of 1.070g/mL at 25degrees C. Calculate Mole fraction of HF %w/w of HF Molarity Molarity Mole fraction of HF `