<span>The correct answer is cell growth. Basically, during the interphase, the cell grows and the genetic material, the DNA, is multiplied as the cell becomes more and more ready for mitosis. After it's done with interphase, the cell moves into mitosis and cell division continues. The cell spends most of its life in this phase.</span>
Answer:
Explanation:
Assume the chemical equation:
- Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g)
<u>1. Convert 112 liters of hydrogen gas at STP to number of moles.</u>
You can use the molar volume of a gas at STP equal to approximately 22.4 liters.
![112liter\times \dfrac{1mol}{22.4liter}=5mol](https://tex.z-dn.net/?f=112liter%5Ctimes%20%5Cdfrac%7B1mol%7D%7B22.4liter%7D%3D5mol)
<u>2. Use the theoretical mole ratio</u>
From the balanced chemical equation, 1 mol of Zn produced 1 mol of H₂(g).
Thus, the mole ratio is 1 : 1, and 5 moles of Zn are needed to produce 5 moles of H₂(g).
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<u>3. Convert 5 moles of Zn to mass in grams</u>
- mass in grams = number of moles × atomic mass
- mass = 5 mol × 65.39g/mol = 326.95 g
Round to 3 significant figures: 327g
First, divide the given mass of lead (ii) chloride by the molar mass of the compound. The molar mass is equal to 278.1 g/mol.
n = m/M
where n is the number of moles, m is the given mass, and M is the molar mass. Substituting the known values,
n = 473.7 g / 278.1 g/mol
n = 1.7 mols
Then, it is to be remember that as per Avogadro, every mol of a substance contains 6.022 x 10^23 formula units.
N = (1.7 mols)(6.022 x 10^23 formula units/mol)
N = 1.02 x 10^24 formula units
Answer: 1.02 x 10^24 formula units
Take 36 / (24 + 6 + 32) = 0.580 mol
0.580/.175 = 3.31 m
depression = 1.86 * 3.31 = 6.16
Subtract from 0 gives -6.16 C closest is A