Based on the structure, which material will dissolve this biomolecule the best? dilute alcohol water oil ionic solution

How many molecules are found in 1.32 mol of nacl?

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)]

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.