You will observe a weak acid-strong base titration in this experiment. Select all statements that are true about weak acid-strong base titrations. Group of answer choices Half way to the equivalence point, a buffer region is observed. Weak acid-strong base titrations always start at a higher pH than strong acid-strong base titrations. The pH is less than 7 at the equivalence point. The pH is greater 7 at the equivalence point.

the equation for synthesis of water is as follows;

here two moles of hydrogen are used with one mole of oxygen which gives one molecule of water as a product. but shana misinterpreted 2 moles as 2 grams in this equation.

when the pressure is increased, there will be a shift to the reactants side. decreasing the volume will increase pressure. when you decrease the volume, the gaseous species get more tightly packed of the concentrations of gaseous species increase.

le chatelier's principle says that the system wants to undo this concentration increase so it can decrease pressure.

since the reactants only have 1 mol of gas (only pcl5) and the products have 2 mol of gas (both pcl3 and cl2), it shifts to reactants to decrease concentration, thereby lowering the pressure