Answer:
A. Energy
B. Chemical potential
C. Endothermic reaction
D.The law of conservation of mass
E. Transfers of energy
The first thing we need to remember is that:
We have 7.54g of CuCl2 so we need to express this amount in moles dividing by the molar mass of CuCl2.
This is:
And, also remember that 65.0mL equals 0.065L.
Now, replacing in the molarity equation:
Thus the answer is 0.862M.
Put one thousand becaus it says one thousand :) your welcome
Answer:
5.22 moles of Na₂CO₃ have mass of 553.22 g
Explanation:
Given data:
Mass of Na₂CO₃ = ?
Number of moles of Na₂CO₃ = 5.22 mol
Solution:
Formula:
Mass = number of moles × molar mass
Molar mass of Na₂CO₃ = 105.98 g/mol
Mass = 5.22 mol × 105.98 g/mol
Mass = 553.22 g
Thus, 5.22 moles of Na₂CO₃ have mass of 553.22 g.
