Question 11: The PBS protocol above says to adjust pH to 7.4 with HCl. What does this imply on the pH of 10x PBS before adjusting the pH, would it be greater or smaller than 7.4?

Laminar flow, sometimes known as streamline flow, occurs when a fluid flows in parallel layers, with no disruption between the layers.[1] At low velocities the fluid tends to flow without...

A MIC is generally regarded as the most basic laboratory measurement of the activity of an antimicrobial agent against an organism. MIC90 is a Minimum Inhibitory Concentration required to inhibit...

the cup should never be used for accuracy because its marks are approximate and not accurate.

Autoclave is used to sterilise solutions using high temperature and pressure. As PBS is used in various assays (immunocytochemical and immunofluorescent staining, cell culture, protein purification, etc.), it is important...

The reaction given:H2PO4-(aq) ⇆ H+(aq) + HPO42-( aq)Here, H2PO4- ion serves as a proton donor, while HPO42- ion is a proton acceptor. In a PBS solution, Na2HPO4 dissociates into Na+ and HPO42-. As a result, this molecule...

Change each percent abundance into decimal form by dividing by 100. Multiply this value by the atomic mass of that isotope. Add together for each isotope to get the average...

Checking what the oxidation states of the elements are. H is +1 when not bound to a metal, O and S are -2 when bound to elements of lower electronegativity...

Lattice energy increases with greater charge and smaller size. Since the charges are the same for both compounds, you have to look at the sizes of the atoms, Cs and...

pH = -lg [H + ]; 0.1m hcl: pH = 1; 0.5m hcl: pH = 0.3; 0.025m hcl: pH = 1.6; 0.0125m hcl: pH = 1.9.

2PbS(s) + 2C(s) + 3O2(g) → 2Pb(s) +2CO(g) + 2SO2(g)n(PbS) = 100 g / (2 *239.3 g/mol) = 0.21 moln(C) = 4 g / (2*12 g/mol) = 0.17 moln(O2) =...