Solve the following: example9)10)How many grams are in 4.5 moles of sodium fluoride, NaF?(molar mass of NaF is 22.99 + 19.00 = 41.99 g/ mole)4.5 moles x 41.99 grams = 188.955 g NaF =1 mole190 g NaFHow many moles are in 98.3 grams of aluminum hydroxide, Al(OH)3?(molar mass of Al(OH)3 is 26.98 + (3 x 16.00) + (3 x 1.01) = 78.01 g/mole)98.3 grams x1 mole1.2601 moles Al(OH)3 = 1.26 moles Al(OH)378.01 grams= 15)16)How many grams are in 2.3 x 104 moles of calcium phosphate, Ca3(PO3)2?How many moles are in 3.4 x 10-7 grams of silicon dioxide, SiO₂?

15 ) given moles of calcium phosphate = 2.3 *10-4 moles molar mass of calcium phosphate = 310.18…

Answered: How many grams are in 2.3 x 104 moles…

How many grams are in 2.3 x 104 moles of calcium phosphate, Ca3(PO3)2? How many moles are in 3.4 x 10-7 grams of silicon dioxide, SiO₂?

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

Solve the following: example
9)
10)
How many grams are in 4.5 moles of sodium fluoride, NaF?
(molar mass of NaF is 22.99 + 19.00 = 41.99 g/ mole)
4.5 moles x 41.99 grams = 188.955 g NaF =
1 mole
190 g NaF
How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)3?
(molar mass of Al(OH)3 is 26.98 + (3 x 16.00) + (3 x 1.01) = 78.01 g/mole)
98.3 grams x
1 mole
1.2601 moles Al(OH)3 = 1.26 moles Al(OH)3
78.01 grams
=

15)
16)
How many grams are in 2.3 x 104 moles of calcium phosphate, Ca3(PO3)2?
How many moles are in 3.4 x 10-7 grams of silicon dioxide, SiO₂?

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