Answer:
79 g/mol
Explanation:
Mass of unknown metal deposited = 3.137 g - 1.4 g = 1.737 g
Number of moles of metal deposited = 0.022 moles
Since;
Number of moles = reacting mass/molar mass
Molar mass = reacting mass/number of moles
Molar mass = 1.737 g/0.022 moles
Molar mass= 79 g/mol
Answer:
CuCl2 + 2NaNO3 - > Cu(NO3)2 + 2NaCl
Answer:
The necessary equations necessary are explained in each step in the solution.
Explanation:
For conversion of methanol gas at 65°C to -112°C
the equations would be as follows,
step 1 : gas at 65°C to liquid at 65°C
q = n(-37 kJ/mol)
step 2 : liquid at 65°C to liquid at -94°C
q = n(81.1 J/mol°C), where dT is negative
step 3 : liquid at -94°C to solid at -94°C
q = n(-3.18 kJ/mol)
step 4 : solid at -94°C to solid at -112°C
q = n(48.7 J/mol°C), where dT is negative
Two electrons
Explanation:
The number of electrons needed to form one single bond is two electrons. A bond is formed when two atoms comes together and exchange their valence electron. Some atoms prefers to share their valence electrons and are called covalent compounds.
- To form a single bond, the two atoms must donate an electron each.
- Double bond is formed by four electrons
- Triple bond is formed by six electrons in the vicinity of the atoms.
- The region where the bond forms is rich in a lot of mobile electrons
learn more:
Covalent bonds brainly.com/question/6029316
#learnwithBrainly