Which of the following scientists was born in Denmark? Svante Arrhenius false Gilbert Lewis false Thomas Lowry false Johannes Nicolaus Brønsted true Single In a particular reaction, substance X was observed donating an electron pair. X can be described as what type of acid (or base)? X is a Lewis acid true X is a Lewis base false X is a Bronsted base false X is an Arrhenius acid false Single When a base reacts with water, how does water behave in relation to the base? Water also acts as a base false Water acts as an acid true Water retains its neutrality false Water produces salt to retain neutrality false Single When a substance dissolved in water produced a concentration of OH- higher than H+, what can you conclude about the substance? It is an Arrhenius acid false It is a Bronsted base false It is a Bronsted acid but Arrhenius base false It is both an Arrhenius base and Bronsted base true Single Which of the following should you do to calculate the pH of a substance dissolved in water? Find the negative logarithm of the concentration of its hydrogen true Find the natural logarithm of the concentration of its hydrogen false Raise the concentration of hydrogen by an exponent of 10 false Use the concentration of hydrogen as an exponent of a base 10 false Single What value will you obtain when you add the pH of a substance with its pOH? 0 false 7 false 14 true -14 false Single Under what pH conditions can human sperm survive? 6 false 7.5 true 9 false It can survive in any pH false Single A certain tissue has high amounts of the amino acid arginine. What pH will this tissue likely have? less than 7.0 false equal to 7.0 false greater than 7.0 true The tissue will have no pH false Single An aqueous substance contains H+ and Cl- ions. If the pH meter measures a pH greater than 7: The substance contains more H+ than Cl- false The substance contains more Cl- than H+ false The substance contains equal amounts of Cl- and H+ true The substance contains too much water false Single The potentiometer in a pH meter directly measures electric currents induced by the substance where it is immersed. A substance that has a high concentration of hydrogen ions will have: a strong induced current true a weak induced current false an induced current false zero induced current false Single