Calculate the moles of citric acid present in 65.Og of citric acid. The molar mass of the compound is 192g/mol. Report the value and explain how you got it

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.