Part APart BPart CA scientist wants to make a solution of tribasic sodium phosphate, NagPO4, for a laboratory experiment. How many grams of NazPO, will be needed to produce 650.mL of a solution that has a concentration of Na+ ions of 0.500 M?Express your answer to three significant figures and include the appropriate units.• View Available Hint(s)?mass of NagP04 =ValueUnitsSubmitProvide FeedbackNext > 6 of 9I Review | Constants | Periodic TablePart AWhat is the concentration of K+ in 0.15 M of K,S?Express your answer to one decimal place and include the appropriate units.• View Available Hint(s)HÀ?ValueUnitsSubmitPart BIf CaCl, is dissolved in water, what can be said about the concentration of the Ca2+ ion?• View Available Hint(s)O It has the same concentration as the Cl ion.O Its concentration is half that of the C jon.O Its concentration is twice that of the Cl ion.O Its concentration is one-third that of the Cl ion.SubmitPart C

Given-volume=650mL = 0.650L Concentration of Na^+=0.5M

I Revie Part A What is the concentration of K* in 0.15 M of K2S? Express your answer to one decimal place and include the appropriate units. • View Available Hint(s) HÀ Value Units Submit Part B If CaCl2 is dissolved in water, what can be said about the concentration of the Ca?+ ion? • View Available Hint(s) It has the same concentration as the Cl- ion. Its concentration is half that of the Cl ion. Its concentration is twice that of the Cl ion. O Its concentration is one-third that of the Cl ion. Submit Part C

I Revie Part A What is the concentration of K* in 0.15 M of K2S? Express your answer to one decimal place and include the appropriate units. • View Available Hint(s) HÀ Value Units Submit Part B If CaCl2 is dissolved in water, what can be said about the concentration of the Ca?+ ion? • View Available Hint(s) It has the same concentration as the Cl- ion. Its concentration is half that of the Cl ion. Its concentration is twice that of the Cl ion. O Its concentration is one-third that of the Cl ion. Submit Part C

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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O Microsoft O shift V A chemistry student weighs out 0.0608 g of formic acid (HCHO₂) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1400M NaOH solution. OCHEMICAL REACTIONS Determining the volume of base needed to titrate a given mass... Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Be sure your answer has the correct number of significant digits. W Microsoft Microsoft 6.52.210... tab esc caps lock mL control Explanation ! 1 (8) Q A Check N © 2 W S #3 X T option command E x10 X D NOV 14 $ 4 C R S F do L % 5 V T G tv ♫ 6 MacBook Pro 9 Y & 7 H Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility U 8 1 9 BN M A O J K O O JOD 05 L H W P > { I command option DOCX + 11 ? | 1 9 OC
A 50.0 mL solution of Mg(OH)2 of unknown concentration is titrated with 0.348 M HCI. The equivalence point (end point) is reached after 62.8 mL of HCI were dispensed into the Mg(OH)2 solution. What is the molarity concentration of the base?
fari File Edit View History Bookmarks Window Help DI OD D ¡l A C =5 Previous Page 9 of 9 Next Ⓒ 2 OCT 12 W S S Stv CHAPTER 4-STOICHIOMETRY: QUANTITATIVE INFORMATION ABOUT CHEMICAL REACTION #3 S % by mass E A 10.2 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If 20.5 mL of 1.22 M sodium hydroxide are required to neutralize the perchloric acid, what is the percent by mass of perchloric acid in the mixture? D all A 54 U S R Document3.docx F C ● % 5 C References Use the References to access important values if needed for this question. east.cengagenow.com T с ● FOCUPSia Pxerenc I.Omni Wenarchive G MacBook Pro C Online t... Y 7 H Oct 10. 2022 at 6:04 AM THAN AUD 25 711/7 AL 111.54 AMM U * 3 8 C 9 K 10 KB 747 KR Micros...(.do WAN archive
The amount of I3-in a solution can be determined by titration with a solution containing a known concentration of S2O32-. If 45 mL of 0.350 M Na2S2O3 is needed to titrate 22 mL of a I3-sample, what is the concentration of the I3-? Give your answer to three decimal places.
If 0.500 mL of an 0.22 M NaCl solution is added to 100.0 mL of pure water. what is the concentration of the new solution? Your answer should have 3 sig figs
1. What is the molar concentration of Na+ ions in 0.0300 M solutions of the following sodium salts in water? for Na2SO4= Na3PO4= 2. Calculate the final concentrations of the following aqueous solutions after each has been diluted to a final volume of 25.0 mL. for 1.00 mL of 0.470 M Na+ =m 2.00 mL of 3.31 mM LiCl = mM 5.00 mL of 5.95 mM Zn2+ =mM
▼ Part A What is the concentration of K+ in 0.15 M of K₂S? Express your answer to one decimal place and include the appropriate units. ► View Available Hint(s) Value Submit Part B μÃ If CaCl2 is dissolved in water, what can be said about the concentration of the Ca²+ ion? ► View Available Hint(s) Units It has the same concentration as the Cl¯ ion. Its concentration is half that of the C1 ion. Its concentration is twice that of the C1 ion. Submit Its concentration is one-third that of the C1 ion. Part C A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 400. mL of a solution that has a concentration of Na+ ions of 0.900 M ? Express your answer to three significant figures and include the appropriate units.
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Given: If you weigh out exactly 0.150 g of an unknown substance to be dissolved in the 100.00 mL volumetric flask, and the concentration of Fe(II) in the 50 mL volumetric flask is calculated to be 1.27 x 10-4 M a. what is the mass (in grams) of iron that you would have in a 100.0 g sample of an unknown substance? HINT GIVEN: You are back calculating from the [Fe(II)] in 50.00 mL to [Fe(II)] in 100.00 mL and then determine the grams of Fe(II) in the mass of unknown sample weighed out to place in the 100 mL flask, to finally be able to calculate the mass of iron in 100.0g of sample. (answer a )