This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
I will solve question 23. 23. How many molecules of gas are contained in 5.6 dm^3 of nitrogen at s.t.p.? Step 1: Determine the moles of nitrogen gas. At s.t.p. (Standard Temperature and Pressure), 1 mole of any gas occupies 22.4 dm^3. Moles of N_2 = Volume of N_2Molar volume at s.t.p. = 5.6 dm^322.4 dm^3/mol = 0.25 mol Step 2: Calculate the number of molecules using Avogadro's number. Avogadro's number states that 1 mole of any substance contains 6.022 × 10^23 particles (molecules in this case). Number of molecules = Moles of N_2 × Avogadro's number Number of molecules = 0.25 mol × (6.022 × 10^23 molecules/mol) Number of molecules = 1.5055 × 10^23 molecules The number of molecules of nitrogen gas is 1.5055 × 10^23 molecules. That's 2 down. 3 left today — send the next one.