A composite containing carbon fibres in epoxy resin is loaded in a direction perpendicular to the reinforcing fibres. If there is 45 vol% fibres, modulus of the carbon fibres is 380 GPa and modulus of epoxy is 3.0 GPa, determine the modulus of the composite. Use this equation to calculate the modulus of the composite:

A composite containing carbon fibres in epoxy resin is loaded in a direction perpendicular to the reinforcing fibres. If there is 30 vol% fibres, modulus of the carbon fibres is 260 GPa and modulus of epoxy is 2.4 GPa, determine the modulus of the composite. Use this equation to calculate the modulus of the composite:

A composite containing carbon fibres in epoxy resin is loaded in a direction parallel to the reinforcing fibres. If there is 40 vol% fibres, modulus of the carbon fibres is 280 GPa and modulus of epoxy is 2.6 GPa, determine the modulus of the composite. Use this equation to calculate the modulus of the composite:

A student carrying out the aspirin synthesis as described in the lab manual started with 1.88 g of salicylic acid and reacted it with 2.5 mL of acetic anhydride (density = 1.082 g/mL) and 5 drops of 18 M sulfuric acid. What is their expected (theoretical) yield of aspirin?

A student carrying out the aspirin synthesis as described in the lab manual started with 1.89 g of salicylic acid and reacted it with 2.5 mL of acetic anhydride (density = 1.082 g/mL) and 5 drops of 18 M sulfuric acid. What is their expected (theoretical) yield of aspirin?

A student carrying out the aspirin synthesis as described in the lab manual started with 1.92 g of salicylic acid and reacted it with 2.5 mL of acetic anhydride (density = 1.082 g/mL) and 5 drops of 18 M sulfuric acid. What is their expected (theoretical) yield of aspirin?

What steps do you take in order to finish a vacuum filtration?