| Using the table above, fill in the missing info. Volume of unknown [HCI], Va 25.00 ml NaOH buret, initial volume 6.00 ml NaOH buret, final volume 27.80 ml Volume of NaOH used Normality of NaOH, No Normality of HCI, Na Average Normality, Na
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- A chemist adds 0.50 L of a 1.2 mol/L aluminum chloride (AICI,) solution to a reaction flask. Calculate the mass in grams of aluminum chloride the chemist has added to the flask. Round your answer to 2 significant digits. g x10 Continue Submit Assignment O 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility esc 30 888 DI DD F2 F3 F4 F5 F6 F7 FB F9 F10 F11 F12 @ $ & ) 1 2 4 5 7 delete Q W E R Y U | { } tab P [ * CO %#3mol 702.7 mol ÷ 0.31 L %3D L 614.9 m ÷ 62.4 s = g 20.947 mL х 26, mL EThe percent concentration of a solution is a ratio of the amounts of dissolved solute and solution, expressed as a percentage. The percent concentration of a solution can be written generally as % concentration = amount of solute x 100% amount of solution Depending on the situation, a percent concentration might be calculated for mass/mass, volume/volume, or mass/volume. tab os lock ntrol esc alt option Q A Z 5,566 2 W S AUG 2 F2 X H command 3 20 E F3 D $ 4 C 888 R Part A F4 70 Calculate the mass percent of a solution that is prepared by adding 54.8 g of NaOH to 461 g of H₂O. Express your answer numerically. ► View Available Hint(s) LIVE ΑΣΦΑ++ ο Submit Part B F [ΫΠ| ΑΣΦ Calculate the mass/volume percent of a NaCl solution in which 136 g of NaCl is dissolved in enough water to give a total volume of 1.44 L . Express your answer numerically. View Available Hint(s) % 5 V T G - 0 B MacBook Air F6 Y & - V 8⁰ 7 H #tv NA ? F7 ? U N %(m/m) %(m/v) 00* J FB M ( 9 K L F10 P command Review I Cons…
- alculate the approximate volume of the vinegar sample needed for the analyses (Part A.1). Brand of vinegar or unknown no. Colauita tof White Wine Trial 1 1122809 Trial 2 Trial 1 Trial 2 e Guia 112.280g (12.822g 112.796 115 565 lis.9 1. Mass of flask (g) l15.603 2. Mass of flask + vinegar (g) 2.496 3.323 2,743 2,749 3. Mass of vinegar (g) B. Analysis of Vinegar Sample 2mL 7.5 23mL 32.コ 1. Buret reading of NaOH, initial (mL) 5.25mL 13ML amL 2. Buret reading of NaOH, final (mL) 33,3 31.2 1. Volume of NaOH used (mL) 2! mL a7.45 me 20.3 32.2 o i135 • 004 1 Molar concentration of NaOH (mol/L) Oi135 • 00 3 1003 , 063 5. Moles of NaOH added (mol) 6. Moles of CH,COOH in vinegar (mol) 7. Mass of CH,COOH in vinegar (g) 8. Percent by mass of CH,COOH in vinegar (%) 9. Average percent by mass of CH,COOH in vinegar (%) Calculations for Trial 1 of the first vinegar sample on next page. Experiment 10 13727 A chemist prepares a solution of sodium chloride (NaCl) by measuring out 0.50 g of NaCl into a 250. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Cl anions in the chemist's solution. do Be sure your answer is rounded to 2 significant digits. 18 Ar mol x10 L Submit Assignment Continue 2022 McGraw Hill LLC. AIl Rights Reserved. Terms of Use Privacy Center Accessibility Show All IMG-6095.jpg IMG-6096.jpg IMG-6097.jpg IMG-6098.jpg IMG-6099.jpg MacBook Air DD DII F12 F11 F10 F9 80 F7 F8 F6 F5 F4 esc F2 F3 F1 & % @ # 7 8 3 4 5 6 1 2 { P E R Y Q W %24A 0.674 M cobalt(II) chloride (CoCl2) solution is prepared with a total volume of 0.0750 L. The molecular weight of CoCl₂ is 128.9 g mol What mass of CoCl2 (in grams) is needed for the solution? Express the answer using 3 significant figures. g
- U eFu X NCH X NCH X ь Му х LU Oef x n Oef x U Oef x O Oef x LU Oef x U Oef x U 202 x n Oef x h Mic x A docs.google.com/forms/d/e/1FAlpQLSFSGcE8gf218c6JoHMWME1A8Nydf8M4g1yG93D-2LPpoMij_g/formResponse Question 37: Give the preferred IUPAC name of the product of the reaction in Figure 37. [Use lowercase letters. Do not use spaces except where required in the official name.] * Jou antwoord Figure 37 CH3 1 LIAIH4 CH3-CH2-C-c=N 2 H* CH3 09:15 P Type here to search 25°C Sunny 2021/11/19The molar mass of KHP is 204.22 g mol Balance the following reaction: NaOH (аq) 2 KHC3H4O4(aq)> 2 NaKC3H4O4 (aq) + H2O (1) 2. > 2.1 g per 950 g elemental iodine + 1.5 kgs potassium hydroxide 750 g potassium iodide Potassium Oral 237 mL per iodide ml Saturated bottle Solution IC. SYNTHESIS AND PACKAGING Mass to Mass Stoichiometry Calculation KIO: 950g 12 = 267.0019044 g KIO3 1500 KOH = 953.5496403 g KIO3 KI 950g 12 = 1035.579853 g KI 1500 KOH = 3698.388588 g KI H20 950g 12 = 67.4308353 g H20 1500 KOH = 240.8171915 g H20 Limiting Reagent Excess Reagent Кон Amount (g) in excess KOH = 1079.987407 grams % Yield 69.45% Number of dosage form and packaging that can be produced from stoichiometric calculation
- U eFu X NCH X NCH X ъ Му х LU Oef X U Oef x U Oef x O Oef x LU Oef x LU Oef x A 202 x LU Oef x h Mic x i docs.google.com/forms/d/e/1FAlpQLSfSGcE8gf218c6JoHMWME1A8Nydf8M4g1yG93D-2LPpoMj_g/formResponse Question 5: The name of compound A in Figure 5 is 1-(butan-2-yl)-3- methylcyclohexane. Use this information to determine the IUPAC name of compound B. [Numbers are separated by commas and numbers and letters by hyphens Use lower case letters and do not use spaces.] * Jou antwoord Figure 5 A B 08:59 P Type here to search 25°C Sunny 2021/11/19Data obtained: Chips # of extractions Chips' weight (g) Fat weight (g) Regular 3 20.043 6.745 3 20.187 6.438 3 20.198 7.451 Low fat 3 19.456 3.982 3 20.072 4.547 3 20.192 4.589 Mass percent is a method of expressing the concentration of a substance in a mixture or element in a compound. It is calculated as the mass of the component divided by the total mass of the mixture and then multiplied by 100 to get the percent. The formula is: mass % of component= (mass of component / total mass) x 100% 1) Reproduce the following table, and use the data to determine the mass % of fat in the chips for each trial. 2) Show one example calculation. Chips Trial % by mass of fat Regular 1 2 3 Lowfat 1 2 3A chemist adds 145.0mL of a 0.0145/molL potassium dichromate K2Cr2O7 solution to a reaction flask. Calculate the mass in grams of potassium dichromate the chemist has added to the flask. Round your answer to 3 significant digits.