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QUESTION 5 13 liters of 40 wt% NaOH solution (SG - 1.43) is diluted with pure...
Sodium hydroxide (NaOH) is produced, stored and shipped as a 50 wt% solution in water. a)...
Sodium hydroxide (NaOH) is produced, stored and shipped as a 50 wt% solution in water. a) What is the mole fraction of NaOH in a 50 wt% NaOH solution? (4 marks) b) The user buys 50 wt% sodium hydroxide, and dilutes it with pure water to 10 wt% NaOH solution for his uses. i. Sketch this process. [3 marks] II. Show the overall mass balance for this process, indicating assumptions. [4 marks) ill. How much water must be added? Express...
A 77.2 g sample of NaOH is dissolved in water and the solution is diluted to...
A 77.2 g sample of NaOH is dissolved in water and the solution is diluted to give a final volume of 2.59 liters. Calculate the molarity of the solution. Use 40.0 as the molar mass for NaOH. Type your answer...
Two aqueous sulfuric solutions containing 20.0 wt% H2SO4 (SG = 1.139)
4. Two aqueous sulfuric solutions containing 20.0 wt% H2SO4 (SG = 1.139) and 60wt % HSO. (SG= 1.498) are mixed to form a 4.0 molar solution (SG= 1.213) a. Calculate the mass fraction of sulfuric acid in the product solution b. Taking 200 kg of the 20% feed solution as a basis, draw and label a flowchart of this process, labeling both masses and volumes. c. Do degree of freedom analysis: vili. How many unknowns? ix. How many balances can be subtracted? x. How many specific...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL of an unknown concentration of HCl solution. What is the concentration of the HCl solution? 7. A colorless liquid has a composition of 84.1% carbon and 15.9% hydrogen by mass. Determine the empirical formula. Also, assuming the molar mass of this compound is 114.2 g/mol, determine the molecular formula of this compound. 8. What is the concentration of HCl in the final solution when...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a sol...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a solution that is 50% by weight NaOH is required to make 400 mL of 0.1M NaOH solution? 3. The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 300 mL of 0.1M NaOH solution? 4. Why does weighing by difference...
Advance Study Assignment: Molar Mass of an Unknown Acid 1. 7.0 mL of 6.0 M NaOH...
Advance Study Assignment: Molar Mass of an Unknown Acid 1. 7.0 mL of 6.0 M NaOH are diluted with water to a volume of 400 mL. We are asked to find the molarity of the resulting solution. a. First find out how many moles of NaOH there are in 7.0 mL of 6.0 M NaOH. Use Equation 1. Note that the volume must be in liters. moles b. Since the total number of moles of NaOH is not changed on...
dilution If I add 25 mL of water to 125 mL of a 0.15 M NaOH...
dilution
If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be? (Your answer should be written as 0.XXX with no units) Question 2 0.2 pts If I add water to 100 mL of a 0.15 M NaOH solution until the final volume is 150 mL, what will the molarity of the diluted solution be? (Your answer should be written as 0XXX with no units) Question...
Question 4 Not yet answered Marked out of 1.00 Flag question How many grams of NaOH...
Question 4 Not yet answered Marked out of 1.00 Flag question How many grams of NaOH (MW of NaOH= 40 daltons) do you need to add to 3 liters of water in order to make a 5 molar (M) NaOH solutions? Select one: O a. 0.069 b. 0.69 O c. 6.0g Od. 60g O e. 600g
Following question: -Calulated molarity of diluted vinegar solution -Molarity of Commercial Vinegar (multiply by the dilution...
Following question:
-Calulated molarity of diluted vinegar solution
-Molarity of Commercial Vinegar (multiply by the dilution
factor
-Percent (mass/volume) of acetic acid in commefcial
vinegar
Data and Calculations Molarity of standardized sodium hydroxide solution Dilution factor for vinegar solution prepared in step 4 i 20 Volume of diluted vinegar titrated in each run Titrations: Run 3 Run 2 Run 1 G (o .00 ml Final Buret 22.20 Volume (mL) Initial Buret Volume (mL) 22.20 WL Volume NaOH 22.3 Delivered (mL)...
can someon help with these questions To make a standard NaOH solution, about 13 mL of...
can someon help with these questions
To make a standard NaOH solution, about 13 mL of 3 M NaOH is mixed with about 300 mL of deionized water (H2OD) in a 500 ml beaker. Why is it not necessary to know the exact volumes of NaOH and H2OD? a b. It isn't necessary to know more than 1 significant digit As a standard solution, the NaOH solution will only need an approximate molarity. The NaOH solution will be further diluted...
Sodium hydroxide (NaOH) is produced, stored and shipped as a 50 wt% solution in water. a) What is the mole fraction of NaOH in a 50 wt% NaOH solution? (4 marks) b) The user buys 50 wt% sodium hydroxide, and dilutes it with pure water to 10 wt% NaOH solution for his uses. i. Sketch this process. [3 marks] II. Show the overall mass balance for this process, indicating assumptions. [4 marks) ill. How much water must be added? Express...
A 77.2 g sample of NaOH is dissolved in water and the solution is diluted to give a final volume of 2.59 liters. Calculate the molarity of the solution. Use 40.0 as the molar mass for NaOH. Type your answer...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL of an unknown concentration of HCl solution. What is the concentration of the HCl solution? 7. A colorless liquid has a composition of 84.1% carbon and 15.9% hydrogen by mass. Determine the empirical formula. Also, assuming the molar mass of this compound is 114.2 g/mol, determine the molecular formula of this compound. 8. What is the concentration of HCl in the final solution when...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a solution that is 50% by weight NaOH is required to make 400 mL of 0.1M NaOH solution? 3. The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 300 mL of 0.1M NaOH solution? 4. Why does weighing by difference...
Advance Study Assignment: Molar Mass of an Unknown Acid 1. 7.0 mL of 6.0 M NaOH are diluted with water to a volume of 400 mL. We are asked to find the molarity of the resulting solution. a. First find out how many moles of NaOH there are in 7.0 mL of 6.0 M NaOH. Use Equation 1. Note that the volume must be in liters. moles b. Since the total number of moles of NaOH is not changed on...
dilution
If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be? (Your answer should be written as 0.XXX with no units) Question 2 0.2 pts If I add water to 100 mL of a 0.15 M NaOH solution until the final volume is 150 mL, what will the molarity of the diluted solution be? (Your answer should be written as 0XXX with no units) Question...
Question 4 Not yet answered Marked out of 1.00 Flag question How many grams of NaOH (MW of NaOH= 40 daltons) do you need to add to 3 liters of water in order to make a 5 molar (M) NaOH solutions? Select one: O a. 0.069 b. 0.69 O c. 6.0g Od. 60g O e. 600g
Following question:
-Calulated molarity of diluted vinegar solution
-Molarity of Commercial Vinegar (multiply by the dilution
factor
-Percent (mass/volume) of acetic acid in commefcial
vinegar
Data and Calculations Molarity of standardized sodium hydroxide solution Dilution factor for vinegar solution prepared in step 4 i 20 Volume of diluted vinegar titrated in each run Titrations: Run 3 Run 2 Run 1 G (o .00 ml Final Buret 22.20 Volume (mL) Initial Buret Volume (mL) 22.20 WL Volume NaOH 22.3 Delivered (mL)...
can someon help with these questions
To make a standard NaOH solution, about 13 mL of 3 M NaOH is mixed with about 300 mL of deionized water (H2OD) in a 500 ml beaker. Why is it not necessary to know the exact volumes of NaOH and H2OD? a b. It isn't necessary to know more than 1 significant digit As a standard solution, the NaOH solution will only need an approximate molarity. The NaOH solution will be further diluted...
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