28) Determine the mass of the following compound: 0.0146 mol KOH A) 56.11 g B) 0.819 g C) 8.19 g 29) Determine the mass of the following compound: 1.6 x 10-3 mol NaSO, A) 2.3 g C) 142.04 g B) 0.23 g 30) Diamond is one form of elemental carbon. An engagement ring contains a diamond weighing 1.25 carats (1 carat = 200 mg). How many atoms are present in the diamond? A) 1.25 x 1022 B) 1.25 x 1020 C) 0.250
28) Determine the mass of the following compound: 0.0146 mol KOH A) 56.11 g B) 0.819 g C) 8.19 g 29) Determine the mass of the following compound: 1.6 x 10-3 mol NaSO, A) 2.3 g C) 142.04 g B) 0.23 g 30) Diamond is one form of elemental carbon. An engagement ring contains a diamond weighing 1.25 carats (1 carat = 200 mg). How many atoms are present in the diamond? A) 1.25 x 1022 B) 1.25 x 1020 C) 0.250
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter3: Calculations With Chemical Formulas And Equaitons
Section: Chapter Questions
Problem 3.128QP: Copper reacts with nitric acid according to the following reaction....
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States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Question
Transcribed Image Text:28) Determine the mass of the following compound: 0.0146 mol KOH
A) 56.11 g
B) 0.819 g
C) 8.19 g
29) Determine the mass of the following compound: 1.6 x 10-3 mol NaSO,
A) 2.3 g
B) 0.23 g
C) 142.04 g
30) Diamond is one form of elemental carbon. An engagement ring contains a diamond weighing 1.25 carats (1
carat = 200 mg). How many atoms are present in the diamond?
A) 1.25 × 1022
B) 1.25 x 1020
C) 0.250
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