Answer:
The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts using copper salts as reagents or catalysts. It is an example of a radical-nucleophilic aromatic substitution.
Answer:
fluorine plus chlorides think
I believe it would be 53.6 hectometers, but I'm not 100% sure
Answer:
Molar mass of the unknown gas: 146 g /mol
Explanation:
At STP, any "ideal" gas is contained in a volume of 22.4L. This situation, for 1 mol of gas. In this case we have:
0.5 g / 4 g/mol = 0.125 moles of He
These amount of He occupies 0.125 mol . 22.4L / 1 mol = 2.8 L so the double of volume will be occupied by the unkown gas.
22.4 L / 1 mol = (2.8 L . 2) / x moles
22.4L / 1 mol = 5.6 L / x mol
x mol = 5.6L / 22.4L → 0.25 moles
To determine the molar mass of the unknown gas → 36.5 g / 0.25 mol = 146 g /mol
