Ineg you fathercarras me ! how does adding a non-volatile solute to a pure solvent affect the vapor pressure of the pure solvent? the solvent's vapor pressure will increase. the solvent's vapor pressure will decrease. the solvent's vapor pressure will not be affected. the solvent's vapor pressure will most likely change, but not in a predictable way. to make a 2.0 m solution, how many moles of solute must be dissolved in 0.50 liters of solution? 0.25 moles solute 0.50 moles solute 1.0 mole solute 2.0 moles solute

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Which fact represents evidence for the big bang theory?

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.