Answer:
CaCN₂
Explanation:
A compound of calcium, carbon and nitrogen CaₐCₓNₙ in oxygen will burning producing:
CaₐCₓNₙ + O₂ → aCaO + xCO₂ + nNO₂
Moles of the oxides CaO, CO₂, NO₂ are:
CaO: 3.106g ₓ (1 mole / 56.08g) = <em>0.0554 moles of CaO = moles of Ca</em>
CO₂: 2.439g ₓ (1mole / 44g) = <em>0.0554 moles CO₂ = moles C</em>
NO₂: 5.097g ₓ (1mole / 46g) = <em>0.111 moles NO₂ = moles N</em>
Empirical formula is the chemical formula that represents the simplest ratio of elements in a compound.
Having as basis 0.0554 moles (The lower number of moles):
0.0554 moles Ca / 0.0554 = 1 Ca
0.0554 moles C / 0.0554 = 1 C
0.111 moles N / 0.0554 = 2N
Thus, the compound CaₐCₓNₙ has as empirical formula:
Ca₁C₁N₂ = <em>CaCN₂</em>
This question is incomplete, here´s the complete question.
A registered representative is meeting with an elderly client and believes that this individual is evidencing diminished mental capacity. The father has an adult son, to whom he has given a durable power of attorney over the account. Later that day, the son contacts the representative and tells him to cash out the account and send him the money. What should the representative do?
A.
Follow the son's instructions because he has a valid power of attorney over the account
B.
Contact the client and get his permission to liquidate the account
C.
Schedule a meeting with the client and son to discuss the situation
D.
Go to the principal with the request and have the principal handle the situation
Answer: D. Go to the principal with the request and have the principal handle the situation
Explanation:
The SEC and FINRA have set specific policies to avoid investment scams of aging investors with diminished mental capacity. Therefore, investment firms must be trained to recognize diminished mental capacities and possible financial exploitation.
In this example, there´s a chance that the son is acting in the client's best interests, but the possibility of him draining the account calls for the representative to ask the principal to handle the situation.
Answer:
Number of moles = 2.8 mol
Explanation:
Given data:
Number of moles of water = ?
Volume of water = 50 mL
Density of water = 1.00 g/cm³
Solution:
1 cm³ = 1 mL
Density = mass/ volume
1.00 g/mL = mass/ 50 mL
Mass = 1.00 g/mL× 50 mL
Mass = 50 g
Number of moles of water:
Number of moles = mass/molar mass
Number of moles = 50 g / 18 g/mol
Number of moles = 2.8 mol
A) Brittle is not a characteristic of most metals