There are also cases when a negative change in entropy can lead to a spontaneous reaction. According to this equation, if the free energy, G, of the system is negative, then the reaction is spontaneous.
<u>Answer:</u> The mass of NaOH is 40 g
<u>Explanation:</u>
Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:
.....(1)
Given values:
Molarity of NaOH = 1 M
Molar mass of NaOH = 40 g/mol
Volume of the solution = (Conversion factor: )
Putting values in equation 1, we get:
Hence, the mass of NaOH is 40 g
Answer: It is chemical energy, which is a type of potential energy.
Explanation: Natural gas consists of mixture of hydrocarbons such as methane, butane and others which are chemical substances, thus they contain chemical energy stored in the bonds of the molecules.
Potential energy is any form of energy that has stored potential that can be used later. Examples include nuclear energy, chemical energy, etc.
Thus the type of energy present in natural gas is chemical energy, which is a type of potential energy.
Aluminum and copper because all of them have advantages and disadvantages over iron alloys.
The volume of base that is actually needed is 24.5 ml of base.
Titration is a chemical technique which is used in chemistry to find out the concentration of an unknown solution. A solution of known concentration is usually used to determine the concentration of the unknown solution. The known solution is usually added to a specific quantity of the unknown solution until the reaction is complete. An indicator is typically added to the unknown solution and the reaction is deem to be completed when there is a color change in the unknown solution.
Thus, the volume of the base that is required to reach the color end point is actually the base volume that is needed for the reaction.