Chemistry
Grade-9
Easy
Question
_________ is the theoretical yield that explains the amount of product formed.
- Percentage composition
- Percentage yield
- Percentage of element
- All the above
Hint:
Percent yield is the percent ratio of actual yield to the theoretical yield.
The correct answer is: Percentage yield
Percentage yield is the theoretical yield that explains the amount of product formed.
Percent yield is the percent ratio of actual yield to the theoretical yield. It is calculated to be the experimental yield divided by theoretical yield multiplied by 100%.
Percentage yield measures the effectiveness of a chemical reaction. It tells us how much of our reactants (in percentage terms) are successfully turned into a product.
Related Questions to study
Chemistry
The __________ of a compound explains the ratio of different atoms present in a molecule.
The __________ of a compound explains the ratio of different atoms present in a molecule.
ChemistryGrade-9
Chemistry
_____________ defines the exact number of atoms that are present in one molecule of compound.
_____________ defines the exact number of atoms that are present in one molecule of compound.
ChemistryGrade-9
Chemistry
For irreversible reaction, the percentage yield is more than 100 which means the reactant is converted to a product and waste.
For irreversible reaction, the percentage yield is more than 100 which means the reactant is converted to a product and waste.
ChemistryGrade-9
Chemistry
Assertion: The empirical formula of glucose is HCHO.
Reason: Molecular formula of glucose is HCHO.
Assertion: The empirical formula of glucose is HCHO.
Reason: Molecular formula of glucose is HCHO.
ChemistryGrade-9
Chemistry
What is the percentage of chlorine available in the bleaching powder?
What is the percentage of chlorine available in the bleaching powder?
ChemistryGrade-9
Chemistry
Percentage of ‘N’ in urea?
Percentage of ‘N’ in urea?
ChemistryGrade-9
Chemistry
A compound of Al and Cl is composed of 9gm of Al for every 35.5g of Cl. What is the empirical formula?
A compound of Al and Cl is composed of 9gm of Al for every 35.5g of Cl. What is the empirical formula?
ChemistryGrade-9
Chemistry
How many moles of water are present in one litre of water?
How many moles of water are present in one litre of water?
ChemistryGrade-9
Chemistry
Match the following
Column-x column-Y
- Vapor density a. 1.66 x 10-27 kg
- 1 amu b. Molecular mass x
- Empirical formula c. Collection of 6.023 x 1023 atoms
- Mole d. Simplest ration
Match the following
Column-x column-Y
- Vapor density a. 1.66 x 10-27 kg
- 1 amu b. Molecular mass x
- Empirical formula c. Collection of 6.023 x 1023 atoms
- Mole d. Simplest ration
ChemistryGrade-9
Chemistry
Atmospheric air has 78% N;21; 0.9 % Ar and 0.1 % CO2 via way of means of volume. What is the molecular mass of air within the atmosphere?
Atmospheric air has 78% N;21; 0.9 % Ar and 0.1 % CO2 via way of means of volume. What is the molecular mass of air within the atmosphere?
ChemistryGrade-9
Chemistry
The average atomic mass is the average weight of the isotopic masses of the element that is present in the isotopes of the element.
The average atomic mass is the average weight of the isotopic masses of the element that is present in the isotopes of the element.
ChemistryGrade-9
Chemistry
Relative atomic mass of a compound can be calculated by the relative atomic mass of individual atoms
Relative atomic mass of a compound can be calculated by the relative atomic mass of individual atoms
ChemistryGrade-9
Chemistry
Statement-1: The relative atomic mass of sodium carbonate is 286
Statement -2: The relative atomic mass of Aluminum sulphate is 132
Statement-1: The relative atomic mass of sodium carbonate is 286
Statement -2: The relative atomic mass of Aluminum sulphate is 132
ChemistryGrade-9
Chemistry
Formula mass unit of ZnO?
Formula mass unit of ZnO?
ChemistryGrade-9
