Answer: I believe it's 8
Explanation: The oxygen atom has therefore 8 neutrons, 8 protons and 8 electrons.
As we know that Molarity is given as,
M = moles / V
Solving for V,
V = moles / M ------------------(1)
Also, moles is equal to,
moles = mass / M. mass -------------(2)
puting value of moles from eq. 2 into eq. 1,
V = (mass / M.mass) / M
Putting values,
V = (45 g / 164 g/mol) / 1.3 mol/dm³
V = 0.21 dm³
Answer: I think it's 1
Explanation: Potential energy means stored energy . In Position 1 it's not moving the energy is being stored. Hope that helps.
1 mole<span> H2O = 18.0 g H2O.</span>
<span>25 g H2O </span>1 mol<span> H2O.</span>
Answer:
3.03 x 10²³ formula units
Explanation:
First we <u>convert 48.0 grams of magnesium chloride into moles</u>, using its <em>molar mass</em>:
- 48.0 g ÷ 95.21 g/mol = 0.504 mol MgCl₂
Then we <u>convert 0.504 moles into formula units</u>, using <em>Avogadro's number</em>:
- 0.504 mol * 6.023x10²³ formula units/mol = 3.03x10²³ formula units
