Question 9 7 pts Most gases behave ideally at ___________. extremely high temper
ID: 1013215 • Letter: Q
Question
Question 9 7 pts Most gases behave ideally at ___________. extremely high temperatures extremely low temperatures room temperature they always behave ideally Flag this Question Question 10 6 pts Why does water transfer H+ ions to bases? the bases are strong the base contains highly electronegative atoms the bases are weak it doesn’t transfer H+ ions Flag this Question Question 11 6 pts Strong bases and strong acids react together to form salt only water only salt and water Flag this Question Question 12 7 pts What is the Bronsted base of H2PO4- + OH-àHPO42- + H2O? H2PO4- OH- HPO42- H2O Flag this Question Question 13 6 pts If the pH of a solution is 4.9, what is the pOH? 4.9 13.4 9.1 8.6 Flag this Question Question 14 6 pts ____________ are solutions that resist changes in pH when moderate amounts of acids or bases are added and contain ions or molecules that react with OH- or H+ when these ions are introduced into solution. acids bases buffers standard solutions Flag this Question Question 15 6 pts The hydroxide and hydronium ion concentrations are multiplied together to get 1x10-3 1x10-7 1x10-11 1x10-14
Explanation / Answer
Q 9 - Most gases behave ideally at high temperatures.
Q 10 - Water is an amphoteric solvent. It can donate H+ to a base and OH- can pick up a H+ from an acid in solution. The base are strong.
Q 11 - Strong bases and strong acids react together to form only salt and water.
Q 12 - Bronsted base of H2PO4- would be HPO4^2-
Q 13 - If pH of solution = 4.9
pOH = 14 - pH = 14 - 4.9 = 9.1
Q 14 - Buffer are solutions that resist changes when moderate amounts of acids or based are added and contains ions that react with H+ or OH- when these ions are introuced in the solution.
Q 15 - The hydroxide and hydronium ion concentrations are multiplied together to get 1 x 10^-14
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