In a lab experiment for the dissolution of borax: na2[b4o5(oh)4] x 8 h2o(s) \rightleftharpoons 2 na+(aq) + b4o5(oh)) + 8 h2? o(l)5.00 ml of borax solution was prepared at 19.2 ^{\circ} ? c (292.35 k). it was diluted in a flask and titrated with 3.14 ml of 0.4760 m hcl. ksp? = 0.013355797 or 1.34 x 10-2? for this trial\deltag^{\circ}? = -rtln(k) for this trial was determined to be 10.48999 kj1.) what does the value of \delta g^{\circ} tell you about ksp? at this temperature? 2.) under standard conditions does the solvation reaction favor products or reactants? 3.) since \delta g^{\circ} is positive, why does some of the borax still dissolve at room temperature? (hint: what is the difference between \delta g and \delta g^{\circ}? )4.) does your value for \delta h^{\circ}? suggest that the solvation of borax is endothermic or exothermic? explain why is this result consistent with the observation that more borax dissolved at higher temperatures.

In which of these cases are the two wave points considered to be in phase with each other?

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.