1. Name the functional group present in each of the molecules below and in each case draw the carbonyl compound from which of the each of products was derived. OH OH Me OH CN

The mass of the original mixture was 2.03g. The combined mass of the salt and the evaporating dish was 48.92g with the tare mass of the evaporating dish being 47.98g. The combined mass of the sand and watch glass and filter paper was 32.15g with the tare mass of the watch glass being 30.91g and of the filter paper being 0.28g. 1A) calculate the mass of the table salt recovered. 2A) Calculate the mass of sand recovered 3A)calculate the total mass of table salt and sand recovered.  4A)Calculate the percent table salt in recovered material. 5A) calculate the table salt in the original mixture.

||| Microsoft O W OCHEMICAL REACTIONS Dilution A chemist must prepare 500. mL of 1.00 M aqueous silver perchlorate (AgCIO4) working solution. She'll do this by pouring out some 1.94 silver perchlorate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the silver perchlorate stock solution that the chemist should pour out. Be sure your answer has the correct number of significant digits. 00 mL Microsoft Microsoft 6.52.210... Explanation Check 9,180 ☐ X 285 S C Q NOV 10 ||| tv SO17 A mol L ( aqueous 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility P eBook W 1 0

13. Nitric acid, HNO3, is a strong acid in aqueous solutions. It is sold commercially as a concentrated solution with a density of 2.14 kg.L-¹ and containing 58% mass of HNO3. We introduce 10.0 mL of this solution in a 250.00 mL volumetric flask which is then filled to the mark with distilled water. This solution is called S. S is then diluted 100 times to afford solution S'. a. What is the definition of a strong acid? | b. What is the concentration of solution S"? c. What is the pH of solution S'?

OCHEMICAL REACTIONS Dilution A chemist must prepare 875. ml. of 335. M aqueous copper (11) fluoride (CuF) working solution. She'll do this by pouring out some 407. µμM aqueous copper (11) fluoride stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in ml. of the copper (11) fluoride stock solution that the chemist should pour out. Round your answer to 3 significant digits. 0 04 0/5 Y

10 Ethylene (CH,CH,) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0 × 10º kg of polyethylene are made from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world demand, so ethane (CH,CH,) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and hydrogen gas. Suppose an engineer studying ethane cracking fills a 60.0 L reaction tank with 22.0 atm of ethane gas and raises the temperature to 500. °C. She believes K =0.050 at this temperature. Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits. Note for advanced students: the engineer may be mistaken about the correct value of K , and the mass percent of ethylene you calculate may not be what she actually observes. %

. In C.AJ = - kt.tln [A.o]. t¹/₂ = 0.693 K In = KE •1• [A]o⋅=⋅· 100 ·/. [A] + = left . CAJO. CAJE In. [100] [s] t =.kt K= 0.693 t¼½₂ CAJO t = |n² Ch t = ln [AG] ·K CAJO K= In [At]. t Formulas Problem: Na-24 has a half life of 15 hours. How much of a 20.09. ·Sample would remain after decaying for 60 hours? Plz explain step by step. using the formulas..

Mass of crucible and cover   12.73g 2. Mass of crucible, cover, and sample   24.11g 3. Mass of original sample   24.11- 12.73g= 11.97g 4. Mass of crucible, cover, and sample after 1st heating   20.01g 6. Mass of crucible, cover, and sample after 2nd heating (assume that this step was done)   19.98 g 7. Total mass lost by sample during heating     what is the percentage of water in the sample? and what is the total mass lost by the sample?

The great French chemist Antoine Lavoisier discovered the law of conservation of mass in part by doing a famous experiment in 1775. In this experiment they found that mercury(II) oxide, when heated, decompose into liquid mercury and an invisible and previously unknown substance: oxygen gas. A. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid mercury (II) oxide (HgO) into liquid mercury and gaseous dioxygen. B. Suppose 72 mL of dioxygen gas are produced by this reaction, at a temperature of 120°C and pressure of exactly 1 atm. Calculate the mass of mercury (II) oxide that must have reacted in grams. Round your answer to three significant digits.

Which of the following chemical reactions is (are) classified as a decomposition reaction? A. 2NACIO3(s) 2NACI(s) + 302(g) > B. KCI(aq) + AgNO3(aq) →KNO3(aq) +AgCl(s) C. Fe(s) + CuS04(aq) FeSO4(aq) + Cu(s) D. 2NaHCO3(s) NazCO3(s) + CO2(g) + H2O(g) E. 2Fe(s) + 3C12(g) →2 FeCl3(s) A none of these B.