How many moles of ammonia, NH,, are contained in
6.21 x 1024 molecules of ammonia?

In saturated organic compounds, all the bonds between carbon atoms are called?

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

How many grams of phosphorus are contained in 5.09 moles of phosphorus?