4. Ten coins with a total mass of 26.76g will displace 3.00mL of water in a graduated cylinder. What is the density and the identity of the coins?

Hello! data: p (pressure) = 1.25 atmv (volume) = ? (in l)t (temperature) = 298 kn (number of mols) = 0.900 molesr (gas constant) = 0.082 (atm*l/mol*k)apply the data to the clapeyron equation (ideal gas equation), see: i hope this . =)

It decreases by 4 is your answer mark brainliest 

The answer is  d.  hydrogen