Reacting ratios

Measure the reacting ratios of silver nitrate solution with solutions of various chloride compounds. 

Arts. The chemist can put in as little as is weighable or as much as the vessel will hold. For example, the fact that a reactant has a coefficient of 2 in the balanced chemical equation does not mean that the chemist must put two moles into the reaction vessel. The chemist might decide to add the reactants in the ratio of the balanced chemical equation, but even that is not required. And even in that case, the numbers of moles of each reactant might be twice the respective coefficients or one-tenth those values, etc. The equation merely states the reacting ratio. 

Ans. No matter how complicated the equation, the reacting ratio is still given by the coefficients. The coefficients of interest are 8 for HCI and 5 for FeCI,. 

Ans. Only parts (d) and (e) are correct. The balanced equation governs the reacting ratios only. It cannot determine how much of any chemical may be placed in a vessel—(a) and (b)—or if a reaction will go to completion—(c). 

Clenci (1991a) and Huybrechts et al. (1991a). Represents the moles of oxygenated products obtained per 100 moles H2O2 reacted. Ratio between 2- and 3-compounds. 

Because the balanced equation is a set of reacting ratios, one coefficient is rather arbitrary. We set the coefficient of the most complex formula to 1, but we might later have to adjust all the coefficients to get integers. 

Consider the reaction of phosphorus with chlorine as shown in the previous equation. Of course, the chemist is not required to place exactly 2 mol of P and 3 mol of CI2 in a reaction flask. The equation gives the reacting ratio. Ratios of coefficients from balanced chemical equations can be used as conversion factors for solving problems. 

Since the reacting ratio is 1 1, the limiting quantity is Ba. The mass of BaS04 is given by... 

The equation regulates the ratio that reacts, not how much can be placed in a vessel. The reacting ratio does not control the extent of the reaction. Therefore, statements (a), (b), and (c) are incorrect. Statement (d) is also incorrect because the reaction is an equilibrium and does not go to completion. Statement (e) is the only correct one. 

Rhodium hexafluoride also reacts with xenon and the reacting ratio was, in the two experiments performed, close to 1 1 (Table 8). Presumably the adduct is Xe+ fRhFJ-but again no X-ray patterns were secured. Since rhodium hexafluoride was considered, because of its small size and low thermal stability to be the most powerful oxidizer of... 

Note that these two reagents are stated to have reacted, not merely to have been mixed. The equation represents the reacting ratio, therefore the coefficient of H3PO4 is I and that of KOH is 2 ... 

Mole ratios in chemical equations can be used to calculate reacting ratios by mass and gas volume. 

This method allows the reacting ratio of the species to be determined more quickly than the ion-electron half-equation method. The procedure involves the following steps ... 

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