Example 2M(NO,) = (14,0 + (2 x 16,0)) = 46,0 g-mol146,0 g NO, (1 mol NO,) occupy 22,4 dm317 g NO, occupies111,5 g NO, occupies 0,49 x 11,5 = 5,6 dm3Solution:x 22,4 0,49 dm346,0» Activity 5 Test yourselfCognitive leveCalculating concentration and volumeYou have dissolved 10 g sodium oxide in 200 ml water. Calculate shconcentration of the solution.2. You want to prepare a standard solution of 1 mol·dm3 magnesiumThe volume of the volumetric flask is 100 ml. How many grams ofMasyou need?3 You have dissolved sodium chloride in water and then toppedflask with water to the 500 cm3 mark. Calculate the mass of sodiNaclchlorideyouneed to prepare a salt solution with a concentratioof 0,1 mol-dm3.4 Calculate the volume (at STP) of these compounds:a) 1,5 mol oxygen gasb) 0,01 mol of hydrogen chloride gasc) 3 mol helium.5 Calculate the number ofa) atoms in 50 dm³ nitrogen gasb) nucleons in 10 cm³ fluorine gas.Racic at

1) Given mass of sodium oxide (Na2O)= 10g volume of solution = 200 mL = 200 x 10-3 L Also, molar…

Answered: alculating concentra You have dissolved…

alculating concentra You have dissolved 10 g sodium oxide in 200 ml water. Calculate concentration of the solution. Jution of 1 mol:dm3 magnesiu

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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Practice Data For Lab Practical Data Set 1 • Stock KOH solution: 5.00M • Make 150.0 mL of 0.250M KOH fom the stock solution Show calculation Vl=250M(150.0mL.)/5 M → V1=7.50mL • Mass of pure H;C,0.*2H;0 standard that will use about 15.0mL of 0 250M KOH= %3D 05 126/2-63 → mass/63-25(15) → Mass 0.05g Standardization of KOH Mass of Oxalic Acid Dihydrate Trial 1 0.2360 Trial 2 0.2371 Trial 3 0.2364 (g) Initial Volume of 0.00 KOH (mL) Final Volume of KOH (mL) 14.89 29.92 14.89 29.92 44.95 Calculate the molarity of KOH for each trial, the average concentration of KOH and the precision of the three trials Trial 1 | I just need help with the 3rd question, calculating the molarity.
Quantity Example Trial 1 Trial 2 Trial 3 M NaOH (exact concentration) 0.992 M 0.953 M 0.953 M 0.953 M V initial buret reading = V, 0.20 mL 1.20 mL 0.52 mL 0.15 mL V final buret reading = V; 12.90 mL 14.22 mL 13.71 mL 13.31 mL Vep = VNaoH added = V, - Vi 12.70 mL 13.02 mL 13.19 mL 13.16 mL Vep = VNaOH in L 0.01270 L 0.01302 L 0.01319 L 0.01316 L moles NaOH = M X VNAOH 'NaOH moles AA moles NaOH V sample = V acid 0.0150 L 0.0150 L 0.0150 L 0.0150 L (15.00 mL) (15.00 mL) (15.00 mL) Actual molarity 0.840 M 0.827 M 0.840 M 0.833 M of AA Average molarity for 3 trials => 0.833 M
Due All changes 5. If 1.00 mL of a 2.25 M H2SO4 solution needs to be diluted to 1.00 M, what will be its final volume? O 5.50 ml 1.23 ml O 2.25 ml 5.00 ml 8 00:58:17 PREVIOUS 5 of 9 NEXT SAVE & EXIT esc %23 24 2 & 4 5 7 e b n
Exercises 7-A. Ascorbic acid (vitamin C) reacts with 13 according to the equation HO. OH HO OH Ascorbic acid C6H8O6 +13 + H₂O OH HO OH FO +31 + 2H+ OH Dehydroascorbic acid CHO, Starch is used as an indicator in the reaction. The end point is marked by the appearance of a deep blue starch-iodine complex when the first fraction of a drop of unreacted I remains in the solution. (a) Verify that the struct above have the chemical formulas written beneath them. You must be able to locate every atom in the formula. Use atomic masses from the periodic table on the inside cover of this book to find the formula mass of ascorbic acid. (b) If 29.41 mL of I5 solution are required to react with 0.197 0 g of pure ascorbic acid, what is the molarity of the I3 solution? (e) A vitamin C tablet containing ascorbic acid plus inert binder was ground to a powder. Then 0.424 2 g was dissolved and titrated by 31.63 mL of I3. Find the weight percent of ascorbic acid in tablet.
Aktiv Chemistr X b Success Confi x < + C app.101edu.co Introducing Ch x moles in Nal scx b Answered: Wh x b Answered: A 0 × b Answered: Hoxb Answered: As x Time's Up! What quantity in moles of Nal are there in 175.0 mL of 0.420 M Nal? 1 4 7 +/- 5 New Tab 2 3 8 0.420 mol 6 9 G 0 x + Submit X C x 100
rofiles Tab Window Help D☎ ☎ a 8 O What volume of a 0.352 M hyd x + l?deploymentid=5735112480241329813180832311&eISBN=9781305862883&id=1707786068&snapshotid=33225... ✰ - Cengage Learning XAM HOMEWORK Module 9 ack APR 17 X Submit Answer on Concentrations: This is group attempt 1 of 10 In the laboratory you dissolve 15.4 g of zinc bromide in a volumetric flask and add water to a total volume of 250 mL. What is the molarity of the solution? MindTap - Cengage Learning X Use the References to access important values if needed for this question. What is the concentration of the zinc cation? tv References What is the concentration of the bromide anion? I M. Autosaved at 10:58 PM M. M. ZAG Mon Apr 17 W 5.3 i 0 > Regenerate Grou Ne:
Paraphrasing Tool | QuillBot b Answered: The chemical rea X Part B Give the AH value for X Course Home B Identify which of the followir X Argumentative Assessment openvellum.ecollege.com/course.html?courseld=16519516&OpenVellumHMAC=4676876ae8862c85950ae1554bc42619#10001 Apps Yahoo Mail YouTube Maps Best Free PowerP... Google Drive can Academic Search Downloads E University Librarie... E UNIVERSITY POR... Student Detail Sc... > My Courses A chemical reaction does not occur for this question. Submit Request Answer Part B How many grams of oxygen are required to react with 30.8 g of lead(II) sulfide? Express your answer with the appropriate units. HÀ ? Value Units Submit Request Answer Part C How many grams of sulfur dioxide can be produced when 64.0 g of lead() sulfide reacts? ...
E 1) Listen The Ksp value for calcium sulfate [CASO4] is 2.40 X 10-5 and a professor made 1825 mL of a CaSO4l2g) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Cag(PO4)2] solution. You may ignore the additional volume coming from the Cag(PO4)2 solution to make the calculation simpler. What will the new total mass of the calcium ion (Ca2+) be in this new solution now. 33.47 gram 17.52 gram 25.44 gram 37.51 gram 39.53 gram 591..docx W- LAB EXP. #3 -.docx Show All
Calculate the volume (in mL) of 0.531 M HBr needed to react completely with 6.99 g of MgCO3 in a gas-forming reaction? mL Check & Submit Answer Show Approach étv hulu P. F10 000 F4 F7 F8 F3 F5 F6 & %24 4. 7 8 9
M 8.04 Concentration: Introductio x 3.4: Other Units for Solution Cor x 10 Chem101 = 3.3 Molarity - Chemistry | Opens x b Search results for What volume x а aрp.101edu.co Question 18 of 30 Submit How many grams of a solution that is 5.2 % sucrose by mass are needed to obtain 18 g of sucrose STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 1 18 0.94 100 6.022 x 1023 3.5 0.052 350 5.2 0.0094 94 g solution %m sucrose g sucrose
LTE+ 74% 5:38 PM KB/s 200406_Homework..mdahl_Chapter 04 - Saved Homework (Chapter 4) 2019. 4. 6 Example 4.1 Calculate the molarity of a solution preparcd by dissolving 11.5 g of solid NaOH in enough water to make 1.50 L of solution Example 4.2 Calculate the molarity of a solution prepared by dissolving 1.56g of gascous HCl in enough water make 26.8 mL of solution. Ехample 4.3 Give the concentration of each type of ion in the following solutions: (a) 0.50 M Co(NO:) (b) 1 M Fe(ClO4)3 Example 4.4 Calculate the number of moles of Cl ions in 1.75 L of 1.0 x 10-3 M ZnCl,. Ехample 4.5 Typical blood serum is about 0.14 M NaCl, What volume of blood contains 1.0 mg NaCl? Example 4.6 To analyze the alcohol content of certain wine, a chemist needs 1.00 L of an aqueous 0.200 MK CrO (potassium dichromate) solution. How much solid K CrO, must be weighed out to make this solution? Ехample 4.7 What volume of 16 M sulfuric acid must be used prepare 1.5 L of a 0.10 M H,SO, solution? Ехample 4.8 Using the…
dtor%=assignment-take [References] A solution contains 5.2 x 10-5 M Nag PO4. What is the minimum concentration of AgNO, that would cause precipitation of solid Ag, PO4 ( Ksp = 1.8 x 10-18 y? Concentration= 6.5x10^-5 M Submit Answer Try Another Version 2 item attempts remaining Not Submitted 4:19 PM 3/30/2021 近