A container of helium is at 40°C with a volume of 2.55 L. What must the temperature be (in °C) raised to for the volume to be 4.50 L?

What is the molality of a solution that has 4 mol of kci in 0.800 kg of water

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.