A sample of ammonia (NH3) releases 5.66 kJ of heat as it solidifies at its melting point. What is the mass of the sample? DHsolid = – 5.66 kJ/mol

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6