39. How many grams are in 2.3 x 104 formula units of KNO,?(A) 38.6 grams(B) 102.3 grams(C) 140 gramsS(D) 386 grams40. Which statement describes the general trends in electronegativity and first ionization energy as theelements in Period 3 are considered in order from Na to Cl?(A) Electronegativity increases, and first ionization energy decreases(B) Electronegativity decreases, and first ionization energy decreases(C) Electronegativity and first ionization energy both increase(D) Electronegativity and first ionization energy both decrease2020Illuminate Education TM, Inc.9.

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Answered: 39. How many grams are in 2.3 x 1024…

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39. How many grams are in 2.3 x 1024 formula units of KNO3? (A) 38.6 grams (B) 102.3 grams (C) 140 grams (D) 386 grams

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

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39. How many grams are in 2.3 x 104 formula units of KNO,?
(A) 38.6 grams
(B) 102.3 grams
(C) 140 gramsS
(D) 386 grams
40. Which statement describes the general trends in electronegativity and first ionization energy as the
elements in Period 3 are considered in order from Na to Cl?
(A) Electronegativity increases, and first ionization energy decreases
(B) Electronegativity decreases, and first ionization energy decreases
(C) Electronegativity and first ionization energy both increase
(D) Electronegativity and first ionization energy both decrease
2020
Illuminate Education TM, Inc.
9.

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