Chapter 7: Q. 7.1 (page 220)
What is mole
Amount of stuff containing the same amount of carbon elementary particles as there are atoms in of carbon .
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If green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white spheres represent hydrogen atoms, and all the molecules are gases.
Calculate the molar mass for each of the following:
a. , antiperspirant
b. ,cream of tartar
C. ,amoxicillin, antibiotic
Ammonium sulfate, , is used in fertilizers to provide nitrogen for the soil.
a. How many formula units are in mole of ammonium sulfate?
b. How many atoms are in mole of ammonium sulfate?
c. How many moles of ammonium sulfate contain atoms of ?
d. What is the molar mass of ammonium sulfate?
Using the models of the molecules (black = C, white = H, yellow = S, red = O), determine each of the following for models of compounds :
(a). Molecular formula.
(b). Molar mass.
(c). No. of moles in localid="1653459240830" .
If purple spheres represent iodine atoms, white spheres represent hydrogen atoms, and all the molecules are gases
(a) Write the formula for each of the reactants and products.
(b) Write a balanced equation for the reaction.
(c) Indicate the type of reaction as combination, decomposition, single replacement, double replacement.
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