2.6 ResultsSuggested data tableHydrate analyzed: Patassium Carbonak thydrak.Cotrial 1trial 2trial A314. U79 14.4429Mass of empty crucible (g)Mass of crucible + hydrate (g)21.95059 19.4169g 19.680445Mass of crucible plus anhydrous salt, first heating (g)2114.21.8 ong 19.34029 19.6270921.478g 19.33 19.62749Mass of crucible plus anhydrous salt, second heating (9)Mass of crucible plus anhydrous salt, third heating (g)Mass fraction of water (%)Average mass fraction (%)ASB inmass traction )Empirical formula of hydrateRelative error (%) in mass fraction (%)Post-lab Questions1. A sample of iron(Il) chloride hydrate, weighs 1.025 g. After carefully removing thewater molecules from the compound, the mass of the anhydrous compound is 0.653g. Find the empirical formula of this hydrate.2. Nickel(11) nitrate forms a hexahydrate,. If a 5.237-g sample is heated until the wateris removed, predict the mass of the remaining anhydrous salt.3. Methane hydrate (also known as methane clathrate) has a formula, and is foundin very large quantities in deep sea locations around the world. Calculate the massof methane that would be released in the decomposition of 1000 kg of methanehydrate.25

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A sample of iron(ll) chloride hydrate, weighs 1.025 g. After carefully removing the water molecules from the compound, the mass of the anhydrous compound is 0.653 g. Find the empirical formula of this hydrate.

A sample of iron(ll) chloride hydrate, weighs 1.025 g. After carefully removing the water molecules from the compound, the mass of the anhydrous compound is 0.653 g. Find the empirical formula of this hydrate.

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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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

2.6 Results
Suggested data table
Hydrate analyzed: Patassium Carbonak thydrak.
Cotrial 1
trial 2
trial A3
14. U79 14.4429
Mass of empty crucible (g)
Mass of crucible + hydrate (g)
21.95059 19.4169g 19.680445
Mass of crucible plus anhydrous salt, first heating (g)
21
14.
21.8 ong 19.34029 19.62709
21.478g 19.33 19.62749
Mass of crucible plus anhydrous salt, second heating (9)
Mass of crucible plus anhydrous salt, third heating (g)
Mass fraction of water (%)
Average mass fraction (%)
ASB inmass traction )
Empirical formula of hydrate
Relative error (%) in mass fraction (%)
Post-lab Questions
1. A sample of iron(Il) chloride hydrate, weighs 1.025 g. After carefully removing the
water molecules from the compound, the mass of the anhydrous compound is 0.653
g. Find the empirical formula of this hydrate.
2. Nickel(11) nitrate forms a hexahydrate,. If a 5.237-g sample is heated until the water
is removed, predict the mass of the remaining anhydrous salt.
3. Methane hydrate (also known as methane clathrate) has a formula, and is found
in very large quantities in deep sea locations around the world. Calculate the mass
of methane that would be released in the decomposition of 1000 kg of methane
hydrate.
25

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