Suppose you use 0.0150 liter of a 2.50 M solution of silver nitrate. Assuming the reaction goes to completion, how much silver sulfide is produced? Use the periodic table.
A. 1.49 g
B. 4.65 g
C. 9.30 g
D. 18.6 g
Answer:- B. 4.65 g.
Solution:- The given balanced equation is:
It asks to calculate the mass of silver sulfide formed by when 0.0150 liters of 2.50 M of silver nitrate are used.
Moles of silver nitrate are calculated on multiplying it's liters by its molarity and then on multiplying by mol ratio, the moles of silver sulfide are calculated. These moles are multiplied by the molar mass to convert to the grams.
Molar mass of = 2(107.87)+32.06 = 247.8 g per mol
The dimensional set up for the complete problem is:
=
So, the correct choice is B. 4.65 g.
Answer:
that jawn gon be 4.65 g
b. energy cannot be converted into other forms of energy
c. potential energy can be converted into kinetic energy, but not vice virsa
d. kinetic energy can be converted into potential energy, but not vise virsa
Moving water can be used to produce electricity because most forms of energy can be converted into other forms. The kinetic energy of water is used to generate electrical energy.
According to the law of conservation of energy, energy can neither be created nor be destroyed. However, one form of energy can be transformed to the other form.
The generation of electrical energy is a good example of energy transformation. Electrical energy is generated from the thermal energy, hydroelectric energy or nuclear energy.
Moving water have enough kinetic energy to provide mechanical energy for a generator that convert this energy into electrical energy. Therefore, option a correctly describe the possibility of energy transformation.
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