In order to determine the relative activity of four metals, each metal was placed in the salt solutions of the other metals and observed for signs of a reaction. The results are displayed in
What is the IUPAC name of the following compound ?
What products would result from the catalytic cracking of a 15-carbon alkane?
Ozone exhibits greater reactivity than the oxygen molecule. Which statement best explains this?
What is the systematic name of the following compound?
What are the volumes in litres of 1 mole of helium gas and 1 mole of nitrogen gas respectively at 25 oC and 100 kPa ?
Which of the following would be a possible industrial source of sulfur dioxide?
20 mL of 0.08 mol L–1 HCl is mixed with 30 mL of a 0.05 mol L–1 NaOH. What is the pH of the resultant solution ?
Given the following ionization/dissociation of hypothetical acids and bases in water:
The molar heat of combustion of ethanol is 1367 kJ mol-1. A 2.510 g sample of ethanol was combusted in heating a certain mass of water from 25oC to 45oC. 80% of the heat released was absorbed by the water. What was the quantity of water heated?
The concentration of chloride ion in river water was determined by titration with AgNO3 solution using a suitable indicator. 25.00 mL samples of river water were titrated with 1.034 x 10–2 mol L–1 AgNO3. The average titre was 22.60 mL. What is the concentration of the chloride ion in the river water?
A sample was tested for its approximate pH using several indicators. The results are given in the table.
What is the correct burette reading in mL?
Which of the following is a Bronsted- Lowry acid – base reaction?
Which of the following changes will always shift equilibrium to the left ?