QUESTION 7 25.0 mL of a 0.100 M solution of NH 3 is titrated with 0.250M HCI. After 10.0 mL of the HCI has been added, the resultant solution is O Acidic and at the equivalence point e Basic and after the equivalence point O Basic and at the equivalence point O Basic and before the equivalence point Acidic and before the equivalence point

16: A neutral solution of water at a particular temperature has a concentration of OH of 3.0 x 107 M. What is Kw at this temperature? F2 20 F3 Q F5 F6 K F7 F8 F9 1 4 7 +/- 2 5 F10 8 3 6 9 0 X

The process of liquid water forming from water vapor is an: Endothermic process, because energy is released from the system due to breaking of interactions between water molecules. O Exothermic process, because energy is released from the system due to formation of interactions between water molecules. O Endothermic process, because energy is absorbed by the system due to breaking of interactions between water molecules. O Exothermic process, because energy is absorbed by the system due to formation of interactions between water molecules. MacBook Air DII DD O00 80 F8 F9 F7 F5 F6 F3 F4 & #3 3 4 6. 7 8

A solution of anhydrous sodium carbonate was made by adding 2.33 g of this salt to a 250.0 mL volumetric flask and water was added to make a standard solution. Then 20.0 mL of this solution was titrated by 17.5 mL of hydrochloric acid. What is the concentration of HCl? Show all work.

Hello,       How are you? Can you help me answer these two questions?

Consider the potential energy vs reaction coordinate diagram in problem 70 in your text on pg 616. Which of the answers below best describes the change in enthalpy for this reaction? Group of answer choices A) thermoneutral B) endothermic C) exothermic D) endogonic

Specific heat is defined as ___- The amount of energy needed to raise the temperature of 1 g of a substance by 1° K - The amount of energy needed to raise the temperature of 1 g by substance of 1° C - The amount of energy needed to raise the temperature of water by 1° C - The amount of energy needed to raise the temperature of a substance by 1° C

Suppose a boil water notice is sent out advising all residents in the area to boil their water before drinking it or using it for cooking. You need to boil 18.0 L of water using your natural gas (primarily methane) stove. What volume of natural gas is needed to boil the water if only 10.1% of the heat generated goes towards heating the water. Assume the density of methane is 0.668 g/L, the density of water is 1.00 g/mL, and that the water has an initial temperature of 21.4 °C. Enthalpy of formation values can be found in this table. Assume that gaseous water is formed in the combustion of methane.