A metallurgist reacts 260.0 grams of 80.0% by mass silver nitrate solution with an excess of copper metal.
How many grams of silver metal can the metallurgist produce during the process? (1 point)
Cu(s) + AgNO3 → Ag(s) + Cu(NO3)2
A.108 grams
B.132 grams
C.146 grams
D.168 grams

132 g

Explanation:

Given data:

Mass of silver nitrate react = 260 g/100×80 = 208 g

Mass of silver metal produced = ?

Solution:

Chemical equation:

Cu + 2AgNO₃  →  2Ag + Cu(NO₃)₂

Number of moles of AgNO₃:

Number of moles = mass/molar mass

Number of moles = 208 g/ 169.87 g/mol

Number of moles = 1.22 mol

Now we will compare the moles of silver with solver nitrate from balance chemical equation.

            AgNO₃       :            Ag

                 2           :              2

                1.22        ;         1.22

Mass of Ag:

Mass = number of moles × molar mass

Mass = 1.22 mol × 107.8682 g/mol

Mass = 132 g

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

the answer is barium and copper bromide