If you have 1.900 moles of gas held at a pressure of 12.00 atm and in a container with a volume of 25.00 L, what is the temperature of the gas? R=0.0821 L*atm/(K*mol)
1923 K

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol