Calculate the mass of helium lost by diffusion. D = 0.04 × 10–12 m2/s. The solubility of helium in the material = 1.8 × 10–3 kg/m3 bar.

Helium gas at a pressure of 6.2 bar is stored in a fused silica container of spherical shape of 0.21 m diameter, the wall thickness being 2.6 mm. Calculate the mass of helium lost by diffusion. D = 0.04 × 10–12 m2/s. The solubility of helium in the material = 1.8 × 10–3 kg/m3 bar.

find the cost of your paper

find the value of Kc for the reaction

Some nitrogen and hydrogen gases are pumped into an empty 5 litre bulb at 500°c.When equilibrium is established 3moles of nitrogen,2.10moles of hydrogen and 0.298 moles of NH3 are found….

Identify which is the oxidation reaction and which is the reduction reaction.

Question 3: Electrochemical Cell (1 6 points) A high school girl was ready for her big date but discovered with horror that her silver necklace was all tarnished. Having just….

Present the Grignard reagent used for your example and illustrate its use, in this discussion.

Organometallic reactions such as Grignard are important in the world of synthetic organic chemistry. Research (the internet) and pick a molecule that may be prepared, in part, by utilizing a….