List of top Chemistry Questions

What is the molecular geometry of \( \text{SO}_3 \)?
What is the oxidation state of chromium in \( \text{K}_2\text{Cr}_2\text{O}_7 \)?
The pH of a solution is 3. What is the concentration of \( \text{H}^+ \) ions in the solution?
You are given a set of experimental data for a chemical reaction, including the concentrations of reactants and products at different times. Determine the order of the reaction and the rate constant.
Explain the difference between a strong acid and a weak acid. How does the pH of a solution change when a strong acid is added compared to a weak acid?
Which of the following gases has the highest density at STP?
The oxidation number of chlorine in $ \text{Cl}_2 \text{O} $ is:
What is the empirical formula of $ \text{C}_6\text{H}_6 $?
What is the molecular mass of $ \text{Na}_2\text{SO}_4 $?
Which of the following ions will have the highest lattice energy?
What is the pH of a 0.01 M solution of $ \text{HCl} $?
Which of the following is the correct IUPAC name for $ \text{CH}_3\text{CH}_2\text{OH} $?
Which of the following is the correct electron configuration for an oxygen atom?
What is the pH of a 0.001 M solution of hydrochloric acid (HCl)?
Which of the following is the correct order of increasing acidity for the following compounds? $ \text{CH}_3\text{OH} $, $ \text{CH}_3\text{COOH} $, $ \text{HCl} $, and $ \text{H}_2\text{SO}_4 $.
What is the empirical formula of glucose, whose molecular formula is $ \text{C}_6\text{H}_{12}\text{O}_6 $?
What is the molar mass of sulfur dioxide (SO$_2)$?
Which of the following is the correct value of the molar volume of an ideal gas at standard temperature and pressure (STP)?
Which of the following is the correct hybridization of the central atom in \( \text{CO}_2 \)?
Which of the following represents the correct IUPAC name for \( \text{CH}_3\text{CH}_2\text{CH}_2\text{OH} \)?
Which of the following is the strongest acid in aqueous solution?
What is the value of the ionization constant \( K_a \) for acetic acid (\( \text{CH}_3\text{COOH} \)) if the concentration of acetic acid is 0.1 M and the concentration of \( \text{H}^+ \) ions at equilibrium is 1.0 x \( 10^{-3} \) M?
What is the pH of a 0.01 M solution of hydrochloric acid (HCl)?
Which of the following compounds is the most soluble in water?
What is the pH of a solution when the concentration of hydrogen ions \([H^+]\) is \( 1 \times 10^{-5} \, \text{mol/L} \)?