Podcast
Questions and Answers
What is the mole ratio between KCl3 and O2 in the given reaction?
What is the mole ratio between KCl3 and O2 in the given reaction?
How many moles of water are formed when 2 moles of hydrogen gas react with 1 mole of oxygen gas?
How many moles of water are formed when 2 moles of hydrogen gas react with 1 mole of oxygen gas?
If the theoretical yield of a reaction is 65 grams and the actual yield is 52 grams, what is the percent yield?
If the theoretical yield of a reaction is 65 grams and the actual yield is 52 grams, what is the percent yield?
Which of the following best describes the limiting reactant in a chemical reaction?
Which of the following best describes the limiting reactant in a chemical reaction?
Signup and view all the answers
What is the pressure exerted by a 760 mm column of mercury at 0°C?
What is the pressure exerted by a 760 mm column of mercury at 0°C?
Signup and view all the answers
According to Gay-Lussac's Law, what happens to the pressure of a gas if the temperature is decreased while the volume is held constant?
According to Gay-Lussac's Law, what happens to the pressure of a gas if the temperature is decreased while the volume is held constant?
Signup and view all the answers
What is the empirical formula of a compound with 40% carbon, 6.7% hydrogen, and 53.3% oxygen by mass?
What is the empirical formula of a compound with 40% carbon, 6.7% hydrogen, and 53.3% oxygen by mass?
Signup and view all the answers
For the balanced equation: $2,\ce{KClO3} \rightarrow 2,\ce{KCl} + 3,\ce{O2}$, what is the mole ratio of potassium chlorate to oxygen gas?
For the balanced equation: $2,\ce{KClO3} \rightarrow 2,\ce{KCl} + 3,\ce{O2}$, what is the mole ratio of potassium chlorate to oxygen gas?
Signup and view all the answers
What is the percent composition of hydrogen in the compound $\ce{CH3CH2OH}$ (ethanol)?
What is the percent composition of hydrogen in the compound $\ce{CH3CH2OH}$ (ethanol)?
Signup and view all the answers
Which compound has the structural formula $\ce{CH3CH2OH}$?
Which compound has the structural formula $\ce{CH3CH2OH}$?
Signup and view all the answers
Balance the equation: $\ce{_S8 +_O2 ->_SO3}$
Balance the equation: $\ce{_S8 +_O2 ->_SO3}$
Signup and view all the answers
For the reaction $\ce{CH4 + 2O2 -> CO2 + 2H2O}$, what is the mole ratio of methane to water?
For the reaction $\ce{CH4 + 2O2 -> CO2 + 2H2O}$, what is the mole ratio of methane to water?
Signup and view all the answers
Which type of chemical formula represents the total number of atoms of each constituent element in one molecule of a compound?
Which type of chemical formula represents the total number of atoms of each constituent element in one molecule of a compound?
Signup and view all the answers
In calculating the empirical formula mass, what step comes after determining the molar mass of each element in the compound?
In calculating the empirical formula mass, what step comes after determining the molar mass of each element in the compound?
Signup and view all the answers
Which type of formula represents the ratio of the elements present in a chemical compound?
Which type of formula represents the ratio of the elements present in a chemical compound?
Signup and view all the answers
What is the empirical formula of a compound if its molecular formula is C6H12O6?
What is the empirical formula of a compound if its molecular formula is C6H12O6?
Signup and view all the answers
When calculating the molecular formula from the empirical formula, what is done with the subscripts found in the empirical formula?
When calculating the molecular formula from the empirical formula, what is done with the subscripts found in the empirical formula?
Signup and view all the answers
Which represents the percentage composition of elements in a compound?
Which represents the percentage composition of elements in a compound?
Signup and view all the answers
