08 Determining empirical and molecular formulas
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Last updated over 4 years ago
8 questions
1
Acrylic acid, used in the manufacture of acrylic plastics, has the composition 50.0% C, 5.6% H, and 44.4% O. What is its empirical formula?
Acrylic acid, used in the manufacture of acrylic plastics, has the composition 50.0% C, 5.6% H, and 44.4% O. What is its empirical formula?
1
An oxide of osmium (Os) is a pale yellow solid. If 2.89 g of the compound contains 2.16 g Os, what is its empirical formula? (hint: determine what elements are in this compound first)
An oxide of osmium (Os) is a pale yellow solid. If 2.89 g of the compound contains 2.16 g Os, what is its empirical formula? (hint: determine what elements are in this compound first)
1
The percentage composition of acetaldehyde is 54.5% C, 9.2% H, and 36.4% O, and its molecular weight is 44.0 amu. Obtain the empirical formula of acetaldehyde.
The percentage composition of acetaldehyde is 54.5% C, 9.2% H, and 36.4% O, and its molecular weight is 44.0 amu. Obtain the empirical formula of acetaldehyde.
1
The percentage composition of acetaldehyde is 54.5% C, 9.2% H, and 36.4% O, and its molecular weight is 44.0 amu. Obtain the molecular formula of acetaldehyde.
The percentage composition of acetaldehyde is 54.5% C, 9.2% H, and 36.4% O, and its molecular weight is 44.0 amu. Obtain the molecular formula of acetaldehyde.
1
Oxalic acid is a toxic substance used by laundries to remove rust stains. Its composition is 26.7% C, 2.2% H, and 71.1% O (by mass), and it molecular weight is 90.0 amu. What is its empirical formula?
Oxalic acid is a toxic substance used by laundries to remove rust stains. Its composition is 26.7% C, 2.2% H, and 71.1% O (by mass), and it molecular weight is 90.0 amu. What is its empirical formula?
1
Oxalic acid is a toxic substance used by laundries to remove rust stains. Its composition is 26.7% C, 2.2% H, and 71.1% O (by mass), and it molecular weight is 90.0 amu. What is its molecular formula?
Oxalic acid is a toxic substance used by laundries to remove rust stains. Its composition is 26.7% C, 2.2% H, and 71.1% O (by mass), and it molecular weight is 90.0 amu. What is its molecular formula?
1
Caffeine, the stimulant found in coffee, is 194.0 g/mol and has a percent composition of 49.48% C, 5.19% H, 28.85% N, and 16.48% O. Find the empirical formula.
Caffeine, the stimulant found in coffee, is 194.0 g/mol and has a percent composition of 49.48% C, 5.19% H, 28.85% N, and 16.48% O. Find the empirical formula.
1
Caffeine, the stimulant found in coffee, is 194.0 g/mol and has a percent composition of 49.48% C, 5.19% H, 28.85% N, and 16.48% O. Find the molecular formula.
Caffeine, the stimulant found in coffee, is 194.0 g/mol and has a percent composition of 49.48% C, 5.19% H, 28.85% N, and 16.48% O. Find the molecular formula.