General Chemistry Answers

Elements K,L, and M represent elements of atomic numbers 9,11, and 16. What type of bond will be formed between L and M?

Given the following data:

SrO(s) + CO₂(g) ---> SrCO₃(s)ΔH = −234 kJ2SrO(s) ---> 2Sr(s) + O₂(g)ΔH = +1184 kJ2SrCO₃(s) ---> 2Sr(s) + 2C(s, gr) + 3O₂(g)ΔH = +2440 kJ

Find the ΔH of the following reaction:

C(s, gr) + O₂(g) ---> CO₂(g)

The hydrogen ions in a solution of pH 3 is y more than hydrogen ions in a solution of pH 6.What is y?

Krypton-81 is used for lung ventilation studies. Its half-life is 13 3. How long will it take for 100 cpm (counts per minute) to decrease in activity to 25 cpm?

using C5H12(g) + 8O2(g) --> 5CO2(g) + 6H2O(g) information from the previous questions, calculate the volume of CO2 produced when 50 L of C5H12 reacts with excess oxygen at STP

using C5H12(g) + 8O2(g) --> 5CO2(g) + 6H2O(g) information from the previous questions, calculate the volume of CO2 produced when 50 L of C5H12 reacts with excess oxygen at STP

If a chemical mixing tank was 1 metre in diameter and 1.5 metres tall, how many litres of chemical would this tank hold