A www-awn.aleks.com odic table -.. O Favorites - YouT... TV fuboTV - Watch... ALEKS - Caliyah... G kno3 acid or ba... G linear program.. G write formulas f. O CHEMICAL REACTIONS Cali Using molarity to find solute moles and solution volume A chemist adds 485.0 mL of a 0.744 mol/L sodium thiosulfate (Na,S,0,) solution to a reaction flask. Calculate the millimoles of sodium thiosulfate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. mmol

A www-awn.aleks.com odic table -.. O Favorites - YouT... TV fuboTV - Watch... ALEKS - Caliyah... G kno3 acid or ba... G linear program.. G write formulas f. O CHEMICAL REACTIONS Cali Using molarity to find solute moles and solution volume A chemist adds 485.0 mL of a 0.744 mol/L sodium thiosulfate (Na,S,0,) solution to a reaction flask. Calculate the millimoles of sodium thiosulfate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. mmol

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. Calculate and report the following Molar Masses. Report final answer to the hundredth's place and include units: sodium hydroxide, potassium chloride, nitric acid, sulfuric acid, silver nitrate, sodium chloride, potassium hydroxide, and ammonium chloride. 2. What is the molar concentration of each of the following solutions? Report the final answer using appropriate significant figures. a. 3.00 moles of sodium hydroxide in 300. mL of solution. b. 6.00 moles of potassium chloride in 600 cc of solution. c. 85.5 g HNO3 in 3.07 Liters of solution. d. 92.00 g H₂SO4 in 843.0 cc of solution.
M 4) Which solution has the same number of moles of HCI as 37.5 mL of 0.200 M solution of HCI? A. 12.5 mL of 0.400 M solution of HCI B. 50.0 mL of 0.150 M solution of HCI C. 45.0 mL of 0.155 M solution of HCI D. 100.0 mL of 0.500 M solution of HCI 37.
A sample of 10 ml of a solution of KBr has a mass of 12.60g. When the solution evaporates, the residue weighs 3.80g. With this, determine: A. The density of the solution B. The percent of mass of the solute C.The molarity of the solution
(please type answer fast).
5. You will also make other concentrations of solutions. If the concentration is to be less than a mole, reduce the mass of the substance accordingly. If the concentration is to be greater than 1M, increase BIOL 1406 the mass added or reduce the volume of water accordingly. Use this formula: Molarity = moles/liter. Example: Make a .5M solution of HCI Name: H = 1.008 Daltons CI = 35.45 Daltons Total = 36.46 Daltons = 36.46 grams .5M = X moles/1 liter .5M * 1 liter = X moles Date Number of moles = .5 .5 * 36.46 = 18.23 grams Add 500 mLs water to 1L volumetric flask, add the 18.23 grams HCI to the water, swirl to dissolve, then add water until it reaches the 1L or 1,000 mL mark. Answer the following questions: 1. How many mL should I use to make a 1M solution of MgBr2? ¶ 2. What is the mass of a mole of NH3? 3. How much CaCO3 should I use to make a 2M solution? 4. How much CaCO3 should I use to make a .25M solution? 5. What are the steps to make a 1M solution of NH3 - give the steps and…
A) Please calculate the molarity of a 578.0mL solution that contains 7.899g of calcium chloride (CaCl2). _____M B)When working in the lab, you notice that a procedure calls for 235mL of 3.456M NaOH solution. How many grams of NaOH should you dilute to make your solution? _______g C)What should be the total volume of the solution (in mL) if you needed to make a 0.2870M solution from 0.1267mol of KNO3? _____mL
SHOW YOUR WORK! Use conversion factors to determine the answers to the Following questions. Do not forget sig figs & units. #42
8. A-D
How many grams of solute are present in each of these solutions? a. 51.7 mL of 0.744 M HBr g HBr b. 318.0 L of 2.70 M Na2CO3 g Na₂CO3 c. 40.3 mL of 4.1 M CH3COOH g CH3COOH d. 4.5 x 104 L of 1.40 M H₂SO3 -4 g H₂SO3
Please help with question 2. G, H, and I
Please answer it all with solutions
tea Name: coMparing Molarity of SWcct Tca OBJCCTIVC: In this activity students will be doing calculations to determine what the ideal Molarity for sweet tea is. Matcrials: You had pey me at. Sugar Tea Water Digital Balance Cups Prc Lab QUestionS: In your own words, what does Molarity mean? Molarity velume of galetim i8 the amountiuof gubstane in a certain What information do you need to calculate Molarity? Lhe uolume Op the Aolihion express ed you divide the moleg in litres Of solule aft do aunjon a How many grams of sugar are in one mole of sugar? Hint: The chemical formula for table sugar (sucrose) is C11H2205. 20x0.1:0.2 22112る:H 0.2moles1234- bb.8 Inde Data トS こ0 First, complete the conversions to fill in the first three columns of the chart below. Show your work on a separate pag Volumc RC9uired MOICS Of suar Grams of sugar concentration Tastc 2.0M 100.0 mL 1.0 M 70.0 mL 2.0 M 60.0 mL 4.0M 50.0 mL Create your solutions and then record compare the taste of each solution.