Question 1: What volume of 12.0% KOH contains 40.0 g of KOH? The density of the solution is 1.11 g/mL.
Question 2: Determine the mass of calcium nitrate required to prepare 3.50 L of 0.800 M Ca(NO3)2 .
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Question 1: What volume of 12.0% KOH contains 40.0 g of KOH? The density of the...
detailed instructions are always appreciated, really trying to learn this. Thank you 3. If 40.0 g of calcium nitrate (Ca(NO3)2) are dissolved in 600 mL of solution, what is the molarity of the solution? What is the concentration in g/mL? 4. How many grams of potassium carbonate (K Co) are required to make 4 .50 Lof 0.300 M aqueous potassium carbonate?
3. What volume of 40.0% NaNO3 solution contains 0.15 mole of NaNO3? Density 1.32 g/mL
A 2.78 L aqueous solution of KOH contains 183 g of KOH. The solution has a density of 1.29 g/mL. Calculate the molarity (M), molality (m), and mass percent concentration of the solution. molarity: 1.175 M molality: m mass percent:
What volume of a 0.674 M aqueous solution KOH (in mL) contains 17.0 g of KOH?
EXERCISE 13 INSTRUCTOR Solution Concentrations Show calculation setups and answers for all problems. 1. What will be the percent composition by mass of a solution made by dissolving 15.0 g of barium nitrate, Ba(NO), in 45.0 g of water? Ba(NO3)2 HO 2. How many moles of potassium hydroxide, KOH, are required to prepare 2.00 L of 0.250 M solution? 3. What is the molarity of a solution that contains 3.50 g of sodium hydroxide, NaOH in 150. mL of solution?...
Part 1. Preparation of a Solution from Solid Reagent Sodium phosphate dodecahydrate, Na3PO4 • 12 H2O (molar mass = 380.12 g/mol) Final Volume of Solution Required, mL So ML Final Concentration of Solution Required, M 0.07800 M Moles of Solute Required, mol Target Mass of Solute Required, g Show your calculation for the moles solute required below: Moles volume (L) x molarity (4) Show your calculation for the mass (grams) solute required below: Solute : Moles (ro) x mour Mass...
Please I need help with number 54 and 61 please An aqueous NaCl solution is made using 112 g of NaCl diluted to a total solution volume of 1.00 L. Calculate the molarity, molality, and mass percent of the solution. (Assume a density of 1 08 g/mL for the solution.) An aqueous KNO_3 solution is made using 72.5 g of KNO_3 diluted to a total solution volume of 2.00 L. Calculate the molarity, molality, and mass percent of the solution....
Part C A volume of 40.0 mL of a 0.280 M HNO3 solution is titrated with 0.820 M KOH. Calculate the volume of KOH required to reach the equivalence point. Express your answer to three significant figures, and include the appropriate units. How many moles of Ba(OH)2 are present in 235 mL of 0.800 M Ba(OH)2? Express your answer with the appropriate units.
QUESTION 1: A volume of 80.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 12.2 mL of 1.50 M H2SO4 was needed? The equation is 2KOH(aq)+H2SO4(aq)→K2SO4(aq)+2H2O(l) QUESTION 2: Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, H2O2, can be titrated against a solution of potassium permanganate, KMnO4. The following...
What are volumetric pipets and burets and what are they used for? 1. 2. To what volume are you to record the values from the buret? 3. 0.3811 g sample of KOH will just neutralize what volume of 0.2000 M HS02 Write the balanced chemical equation. a. b. What volume of 0.2000 M H SO, will just neutralize the KOH sample? 4. In a experiment similar to yours, a solution is prepared by adding 4.512 g of slaked lime also...