Answer: Formal Charges: Hydrogen = 0 and Oxygen = +1
Unshared Pair of electrons: Hydrogen = 0 and Oxygen = 2
Explanation:
The attachment below shows the Lewis structure and the calculations
Answer:
"Avogadro's law is an experimental gas law relating the volume of a gas to the amount of substance of gas present. The law is a specific case of the ideal gas law. A modern statement is: Avogadro's law states that "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules."
Answer: mitochondria
Explanation:
it affects the cell because it produces the power of the cell, let me know if this helpes
Answer:
2.77 mL of boiling water is the minimum amount which will dissolve 500 mg of phthalic acid.
Explanation:
We know from the problem that 18 g of phthalic acid are dissolved in 100 mL of water at 99 °C.
Now we devise the following reasoning:
If 18 g of phthalic acid are dissolved in 100 mL of water at 99 °C
Then 0.5 g of phthalic acid are dissolved in X mL of water at 99 °C
X = (0.5 × 100) / 18 = 2.77 mL of water
Answer: The final temperature of nickel and water is
.
Explanation:
The given data is as follows.
Mass of water, m = 55.0 g,
Initial temp,
,
Final temp,
= ?,
Specific heat of water = 4.184
,
Now, we will calculate the heat energy as follows.
q = ![mS \Delta t](https://tex.z-dn.net/?f=mS%20%5CDelta%20t)
= ![55.0 g \times 4.184 J/g^{o}C \times (t_{f} - 23^{o}C)](https://tex.z-dn.net/?f=55.0%20g%20%5Ctimes%204.184%20J%2Fg%5E%7Bo%7DC%20%5Ctimes%20%28t_%7Bf%7D%20-%2023%5E%7Bo%7DC%29)
Also,
mass of Ni, m = 15.0 g,
Initial temperature,
,
Final temperature,
= ?
Specific heat of nickel = 0.444 ![J/g^{o}C](https://tex.z-dn.net/?f=J%2Fg%5E%7Bo%7DC)
Hence, we will calculate the heat energy as follows.
q = ![mS \Delta t](https://tex.z-dn.net/?f=mS%20%5CDelta%20t)
=
Therefore, heat energy lost by the alloy is equal to the heat energy gained by the water.
![q_{water}(gain) = -q_{alloy}(lost)](https://tex.z-dn.net/?f=q_%7Bwater%7D%28gain%29%20%3D%20-q_%7Balloy%7D%28lost%29)
= -(
)
= ![25.2^{o}C](https://tex.z-dn.net/?f=25.2%5E%7Bo%7DC)
Thus, we can conclude that the final temperature of nickel and water is
.