Question

8. Precipitation calculations with Ni2+ and Pb a. Use the solubility product for Ni(OH)2 o) to calculate the ph at which (OTH)2 begins to precipitate from a 0.18 M Ni2+ solution (3pts). (Ksp Ni(OH)2-5.5x10-16) b. Will Pb(OH) H from a0.18M Pb2 solution (3psa)? (The 2 (o) precipitate at the above p Ks for Pb(OH)2 1.2x10-15)

Answer 1

1.) The functional significance of the evolution of a second ventricle is that a second ventricle allows for blood to be pumped into two separate circuits at different pressure.

Ventricular pressure is a measure of blood pressure within the ventricles of the heart.

The left ventricle receives oxygenated blood from the left atrium via the mitral valve and pumps it through the aorta via the aortic valve, into the systemic circulation.

The right ventricle receives deoxygenated blood from the right atrium via the tricuspid valve and pumps it into the pulmonary artery via the pulmonary valve, into the pulmonary circulation.

2.) Pulmonary vein.

The pulmonary veins are the veins that transfer oxygenated blood from the lungs to the heart. The largest pulmonary veins are the four main pulmonary veins, two from each lung that drain into the left atrium of the heart.