Mole ratio:
H2SO4 + Ca(OH)2 = CaSO4 + 2 H2O
1 mole H2SO4 ----------- 1 mole Ca(OH)2
? moles H2SO4 --------- 0.10 moles Ca(OH)2
0.10 x 1 / 1
= 0.10 moles of H2SO4
The answer would be A) Kyrpton
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- Chlorine has 17 protons.
After looking at all of these numbers we can see that the element with the highest number of protons is krypton, at 36 protons.
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Answer:
The answer to your question is 3, 2, 6, 1
Explanation:
Unbalanced chemical reaction
CoBr₂ + K₃PO₄ ⇒ KCl + Co₃(PO₄)₂
Reactants Elements Products
1 Co 3
2 Cl 1
3 K 1
1 P 2
4 O 8
Balanced chemical reaction
3CoCl₂ + 2K₃PO₄ ⇒ 6KCl + Co₃(PO₄)₂
Reactants Elements Products
3 Co 3
6 Cl 6
6 K 6
2 P 2
8 O 8
1.7 x 10 to the power of 22 formula units
A formula is the empirical formula of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations.
Answer:
0.677 moles
Explanation:
Take the atomic mass of K = 39.1, O =16.0, P = 31.0
no. of moles = mass / molar mass
no. of moles of K3PO4 used = 4.79 / (39.1x3 + 31 + 16x4)
= 0.02256 mol
From the equation, the mole ratio of KOH : K3PO4 = 3 :1,
meaning every 3 moles of KOH used, produces 1 mole of K3PO4.
So, using this ratio, let the no. of moles of KOH required to be y.
y = 0.02256 x3
y = 0.0677 mol
If you don't find exactly 0.677 moles as one of the options, go for the closest one. A very slight error may occur because of taking different significant figures of atomic masses when calculating.