Explanation:
No of molecules=0.500×6.023×10²³=3.011×10²³ molecules
Boiling point
i hope this helps.
Answer: 58.44g
Explanation: The molar mass of NaCl is 58.44g.
Answer:Not so good, but I'll manage. What about you?
Explanation:
Answer:
1.8 × 10² s
Explanation:
Let's consider the reduction that occurs upon the electroplating of copper.
Cu²⁺(aq) + 2 e⁻ ⇒ Cu(s)
We will establish the following relationships:
- 1 g = 1,000 mg
- The molar mass of Cu is 63.55 g/mol
- When 1 mole of Cu is deposited, 2 moles of electrons circulate.
- The charge of 1 mole of electrons is 96,486 C (Faraday's constant).
- 1 A = 1 C/s
The time that it would take for 336 mg of copper to be plated at a current of 5.6 A is: