Consider the known solution of nickel spotted on your chromatogram. Assume you spot- ted 0.050 mL of this solution and the solution has a concentration of 0.15 M i.e., it contains 0.15 moles liter of solution How many grams of nickel are spotted and detected? MM of nickel = 58.7 g/mol
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- Profiles 202 X sac/10062554#/10062554/7/-1 hment Score: 3 ion 8 of 10 > Macmillan Learning F3 Tab Window Help E Experiment 11 - Per X D tv mass of KBr : mass of water: C 78.8% $ 4 85 A 0.600 m aqueous solution of KBr has a total mass of 88.0 g. What masses of solute and solvent are present? Q F4 R FO % 5 V F5 11_Melton_Keely - x | T 6 34,121 X MacBook Air F6 Y G I H 5 & 7 B N F7 #06 NEW U 8 Resources W M DII F8 1 K X X ( 9 H F9 0 48% Question 8 of Give Up?. L -0 (((( F10 P V 1 I command option Reminders pill Hint 10 F11 a 8 [ ? 1 + 11 Ch }What type of chemical analysis would you use for the following? 1. 500 milligrams of ascorbic acid in vit. C 2. determination of sodium, glucose, alkaline phosphate, and others in a blood analysis 3. four percent calcium and two percent iron is found in an analysis of pineapple juice [Spectroscopy, gravimetric analysis, volumetric analysis, electroanalytical methods, OR chromatography]5) If all the NaHCO3 in bag 2 reacted, calculate the number of moles of gas produced? tates) E Focus
- 1. How many milliliters of concentrated hydrochloric acid, 38% (wt/wt), specific gravity 1.19, are requiredto prepare 1 L of a 0.100 M solution? Assume density and specific gravity are equal within threesignificant figures. (H-1.008 amu, Cl-35.45 amu) 2. A 0.456-g sample of an ore is analyzed for chromium and found to contain 0.560 mg Cr2O3.Express the concentration of Cr2O3 in the sample as %w/w.Is their a true chemistry defeinition of what "percent by volume means?" If so, can it be described as this definition: Volume/volume percentage (v/v percent) is a measure of the concentration of a substance in a solution. It is expressed as the ratio of the volume of the solute to the total volume of the solution multiplied by 100.3. Calculate the normality when 7.88g of Ca(NO3)2 was dissolved in 3 lite solution ANSWER: NORMALITY=
- A chemist measured the concentration of a solution three times and obtained the following results (in mol/L): 0.0147, 0.0146, 0.0148. Do the results appear precise, accurate, or neither? Explain. avenge =.0147 (pdimus.co 120 Doy Jine What information would you need for the results to be both precise and accurate? If the true value is 0.0149, calculate the percent error.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…An individual combined 1.397 g 4-aminophenol with 2.9 mL acetic anhydride. A mass of 1.302 g pure and dry acetaminophen was obtained. What was this individuals percent yield? Report your answer to two decimal places.
- During dilution process, what do you do if you add a bit too much solvent when filling the volumetric flask to the mark? O Calculate the equivalent amount of salt and add that to the solution O Remove the excess content of the flask until the volume matches the calibration mark O Start over, the solution cannot be saved OUse a distillation unit to evaporate the excess solventdrc%3D0&gi=24758088ctgl=18dnb 06 What is the molarity of a solution prepared by dissolving 213.6 grams of Fe(OH)3 in enough water to produce a total volume of 1.5 L? Round your answer to 1 decimal place. Your Answer: Answer units D Add attachments to support your workAn aqueous solution at 25 °C has a H,O' concentration of 3. x 10 "M, Calculate the OH concentration. Be sure your answer has the correct number of significant digits. OM W Discussion week..docx Co dayum.pdf Show all O Type here to search 2:56 PM (? A * G 4) 5/4/2021 hp 3 4 5 8 backspac E R T Y D F G K