You were careless when writing the procedure for an upcoming lab on dilutions. You wrote down how to make a stock solution for each of the following substances, but you didn't record the concentration. Now you must calculate the concentration of the stock solution before you can make the dilutions required in the lab and subsequently calculate the final molarity. 7. Your stock solution was made by adding 75 grams of NaCl in 1.4 L. Calculate the concentration of your stock solution. dilute 25ML of the stock solution to a final volume of 1L. Calculate the molarity of the final solution. Your instructions indicated you will

You were careless when writing the procedure for an upcoming lab on dilutions. You wrote down how to make a stock solution for each of the following substances, but you didn't record the concentration. Now you must calculate the concentration of the stock solution before you can make the dilutions required in the lab and subsequently calculate the final molarity. 7. Your stock solution was made by adding 75 grams of NaCl in 1.4 L. Calculate the concentration of your stock solution. dilute 25ML of the stock solution to a final volume of 1L. Calculate the molarity of the final solution. Your instructions indicated you will

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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Mla pnc.com/women Mail - Whi x O Grades for x Course Ho X G oxide cont X G Exercise 4.x E 4 - Molecu x O Bananas a X 1.84 x 10- x + envellum.ecollege.com/course.html?courseld 16985674&OpenVellumHMAC=a0b841caaee7feddab1623a6c83a92c0#10001 Review | Constants I Periodic Table Percent composition refers to the mass percent of each element in a compound: mass of element Part A mass percent = x 100% mass of compound > For example, the percent composition of water, H2O. is 11.2% hydrogen and 88.8% oxygen. Therefore, a 100-g sample of water contains 11.2 g of hydrogen atoms and 88.8 g of oxygen atoms. A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the following hydrocarbon: CH22 Enter the percentages of carbon and hydrogen numerically to four significant figures, separated by commas. The periodic table will be useful when doing this problem. You can access a periodic table by clicking the "Tools" link in the upper right…
1-1. The raw water supply for a community contains 18 mg/L total particulate matter. It is to be treated by addition of 60 mg alum (Al2(SO4)3-14H;O) per liter of water treated. Essentially, all the added alum precipi- tates represented by the following reaction: Al2(SO4)3 · 14H20 → 2 Al(OH);(s) + 3So,- + 6H* + 8H2O For a total flow of 7500 m/d, compute the daily alum requirement, the total concentration of suspended sol- ids in the water following alum addition, and the daily load of particulate solids requiring disposal (including both those initially present and those formed during treatment).
For eac te, click the button under the better solvent. solute Which is the better solvent? :0: || :0: :0: CH,-S CH, НО -С — СH, — CH, — С — ОН CH;CH,OH CH; H C H
t we didnt he ad tne sammple iong enouan +o remove all the H2C hydratičn ur calculatons would be neavierima king n toO 5. What mass of CUSO<(H2O)s (Copper II sulfate pentahydrate), when heated and dehydrated, would result in 6.23 g of anhydrous salt? 'n" have been too high or C6.2,39X159,69 MOI O39 0:391 CUSOU CH20)5 159.69 90 59.60+90 Y MOV 909 2/77g x 159.G9x 61239_X- 189 X C6,23+3.631539,86159 -TI626309 x 9= 3,6315 -x* 54.6.03903 うX = 20175 (CUSO4 OEABCH20).20167 0.03903 =CUSO4 CH2O)5 63,5 +32,1t 84:16 sced Chemistry with Vernier 2-3
O Course Home b Chemistry Question | bartleby G indivuials with austium good to -> A openvellum.ecollege.com/course.html?courseld=16561285&OpenVellumHMAC=446c877376a9bc7ac878d8ad119f4717#10001 Q * E Apps O Maps E Connect - To Do As... O OCCC Moodle P chem work b help Gmail YouTube Balance Chemical E. II Review | Constants | Periodic Table A carbon atom is chiral if it is bonded to four different groups. For example, CHCIBII is chiral, but CCl,BrI is achiral because some of the bonded groups are the same. If a chiral carbon atom is present, then that molecule has a non-superimposable mirror image called an enantiomer. (Figure 1) Part A Identify all the chiral atoms in the below structure by right-clicking* a chiral atom to bring up a menu that includes "Atom Properties." Click on Atom Properties then click the checked box next to the Map field to clear the checkmark. Then enter "1" in the Map *Mac users: Use an equivalent for right- field box to label that chiral carbon atom. clicking.…
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OWLV2 | Online teaching and X 0mySigTau xb Login | bartleby X M COMM.1113: FUND OF ORA X G what food has c - Google Se X + om/ilrm/takeAssignment/takeCovalentActivity.do?locator=assignment-take D [References] hotogray lenses incorporate small amounts of silver chloride in the glass of the lens. When light hits the AgCl particles, the following reaction occurs: hv AgCl Ag + Cl The silver metal that is formed causes the lenses to darken. The enthalpy change for this reaction is 2.90 × 10² kJ/mol. Assuming all this energy must be supplied by light, what is the maximum vavelength of light that can cause this reaction? Wavelength %3D nm Submit Answer Try Another Version 3 item attempts remaining Previous Next
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