Molar Conversions Practice Problems
Molar Conversions Practice Problems
Converting Between Moles and Representative Particles
Converting Between Moles and Representative Particles
Example 1: Titanium is a strong metal that is corrosion-resistant. Because it
is biocompatible, it is used in a gamut of medical applications including surgical
implants like hip balls and sockets. Titanium is often alloyed with aluminum and
vanadium. How many moles are equal to 4.5x10 23 atoms of titanium (Ti)?
Info from Avogadro...1 mol Ti = 6.02x1023 atoms Ti
Example 1: Titanium is a strong metal that is corrosion-resistant. Because it
is biocompatible, it is used in a gamut of medical applications including surgical
implants like hip balls and sockets. Titanium is often alloyed with aluminum and
vanadium. How many moles are equal to 4.5x1023 atoms of titanium (Ti)?
Info from Avogadro...1 mol Ti = 6.02x1023 atoms Ti
Example 2: Tungsten is a rare metal that is found naturally on Earth only in
chemical compounds. If it was isolated, how many atoms are in 3.4 moles of
tungsten (W)?
Info from Avogadro...1 mol W = 6.02x1023 atoms W
Example 2: Tungsten is a rare metal that is found naturally on Earth only in
chemical compounds. If it was isolated, how many atoms are in 3.4 moles of
tungsten (W)?
Info from Avogadro...1 mol W = 6.02x1023 atoms W
You Try 1: Potassium chloride has a crystalline structure like many other ionic salts.
How many moles are equal to 3.61x1024 representative particles of potassium
chloride (KCl)?
You Try 1: Potassium chloride has a crystalline structure like many other ionic salts.
How many moles are equal to 3.61x1024 representative particles of potassium
chloride (KCl)?
You Try 2: Sucrose, C12H22O11, is also known as saccharose. If you have 2.1 moles
of sucrose, how many molecules of sucrose do you have?
You Try 2: Sucrose, C12H22O11, is also known as saccharose. If you have 2.1 moles
of sucrose, how many molecules of sucrose do you have?
Converting Between Moles and Mass (grams)
Converting Between Moles and Mass (grams)
Example 1: If we have 3.5 moles of KNO3, how many grams of KNO3 would we
have?
Info from Periodic Table…1 mol KNO3 = 101.1 g KNO3
Example 1: If we have 3.5 moles of KNO3, how many grams of KNO3 would we
have?
Info from Periodic Table…1 mol KNO3 = 101.1 g KNO3
Example 2: If we have 20 grams CH4, how many moles of CH4 do we have?
Info from Periodic Table…1 mol CH4 = 16.05 g CH4
Example 2: If we have 20 grams CH4, how many moles of CH4 do we have?
Info from Periodic Table…1 mol CH4 = 16.05 g CH4