What is the mass of 0.1 mole of Cu(OH) 2 ?

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Chromosome 17 is made of over million base pairs.

Which sample at stp has the same number of atoms as 18 liters of ne at stp