[size=4]What is the value of Avogadro’s constant?[/size]

[size=4]What amount of hydrogen at STP could be contained in a vessel that holds 4.8 g of oxygen at STP?[/size]

[size=4]Which of the following has the maximum number of atoms?[/size]

[size=4]For nos. 4 – 6: Refer to the stem provided:[/size]

[size=4]Compound A contains only carbon, fluorine, and chlorine if the vapor density of A at 0.9869 atm and 25°C is 6.895 g/L[/size]



[size=4]What is the molar mass of A?[/size]

[size=4]If A is a chlorofluorocarbon, then A reacts with sodium metal to convert all the chlorine present into sodium chloride. The products from the reaction of sodium with 100.0 mL of gaseous A (at 1.00 bar and 25.0 °C) are dissolved in water, and a few drops of sodium chromate solution are added. This solution is then titrated with 0.3540 M AgNO[sub]3[/sub] solution until a bright red precipitate appears, which requires 22.79 mL of the titrant. How many chlorine atoms are there in a molecule of A?[/size]