Alkali metals need to lose 1 electron to form a stable octet.
4.0 % in mass per volume :
4.0 g ---------- 100 mL
1.2 g ---------- ( volume )
Volume = 1.2 x 100 / 4.0
Volume = 120 / 4.0
= 30 mL
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The amount of atoms of Phosphorus in 3.80 mol of copper (II) phosphate would be equivalent with :
3.80 mol x (6.022 x 10^23 molecules)/ (1 mol)
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Answer:
Lungs
Explanation:
If blood pressure is almost normal in a person who has lost blood.
In order to calculate the yield, we first need the theoretical and actual yields since the formula is:
Percentage yield = (actual yield / theoretical yield) x 100
The theoretical yield is calculated using the reaction equation which is:
2NaNO₃ + CuCl₂ → 2NaCl + Cu(NO₃)₂
The moles of copper chloride reacting are: 31 / 134 = 0.23
So the moles of sodium chloride produced should be: 2 x 0.23 = 0.46
The mass of sodium chloride (theoretical yield) should be: 0.46 x 58 = 26.68 g
Percentage yield = (21.2 / 26.68) x 100
Percentage yield = 79.5%