Question 7 and 8 19.226.A compound consists of 40.00% carbon, 6.71% hydrogen and 53.29% oxygen and has amolecular mass of 180 ± 1 g/mole. Determine the empirical and molecular formulas of thecompound.empineal Formula CLI20chaoeripivrea lmassE1at =3Now, wo ofLunifs - molalmeiss -180Hence, muleculas Formy laL'e (choulaemporicaimeiss 307.The mass percent of water in a hydrate of MnCl, is 36.41%. What is the empirical formula ofthe hydrate?8.* A 4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated.Determine the mass percent water in the hydrate and the formula of the hydrate.ons la9. A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated.Determine the mass percent of water in the hydrate and the formula of the hydrate.10. An unknown solution containing one of the salts ZNSO4, MGSO, or SrCl, gives a negative flametest but tarnishes a piece of magnesium inserted into the solution. Which salt was in thesolution?alyx11. The heating of CuSO,- 5H,O yields several transitions as a function of temperature. The tablebelow gives the percentage of original mass lost as a function of the approximate temperature.Use these percentages to determine the sequence of decompositions and write chemicalequations for each transition.percentage of original mass lostapproximate temperature (°C)29.036.0 51.5 67.0 70.580014.510013022091010200 2015 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website,whole or in part.

The question is based on the concept of experimental chemistry. we have to calculate the empirical…

8.* A4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated. Determine the mass percent water in the hydrate and the formula of the hydrate. 9. A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated. Determine the mass percent of water in the hydrate and the formula of the hydrate.

8.* A4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated. Determine the mass percent water in the hydrate and the formula of the hydrate. 9. A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated. Determine the mass percent of water in the hydrate and the formula of the hydrate.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter13: Isolation Of Eugenol From Clov

Section: Chapter Questions

Problem 9Q

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