Answer:
3.08 moles of CaF₂ and 3.08 mol of H₂SO₄
Explanation:
In order to produce HF we can assume this chemical reaction:
CaF₂ + H₂SO₄ → CaSO₄ + 2HF
1 mol of calcium fluoride can react to 1 mol of sulfuric acid in order to produce 1 mol of calcium sulfate and 2 moles of HF
In this case, ratio is 2:1 with both reactants. Let's make a rule of three:
2 moles of HF were produced by 1 mol of CaF₂ and 1 mol of H₂SO₄
Then, 6.16 moles of HF must be produced by:
(6.16 . 1) / 2 = 3.08 moles of CaF₂ and 3.08 mol of H₂SO₄
Answer:
1.42 Kg of NaHCO3
Explanation:
From
Co= 10 pd/M
Where;
Co= concentration of the stock solution of acid
p= percentage of raw acid = 36%
d= density of the acid= 1.138g/mL
M= molar mass of the acid= 36.5 g/mol
Co= 10 × 36 × 1.138/36.5
Co= 11.22 M
Number of moles of acid= CV = 11.22 M × 1.508 L= 16.9 moles
The reaction equation is;
NaHCO3(aq)+HCl(aq)→NaCl(aq)+H2O(l)+CO2(g)
If 1 mole of NaHCO3 reacts with 1 mole of HCl
Then 16.9 moles of HCl reacts with 16.9 moles of NaHCO3
Hence 16.9 moles of NaHCO3 is required to neutralize the HCl.
From
n= m/ M
Where;
n= number of moles = 16.9
m= mass of NaHCO3= ??
M= molar mass of NaHCO3= 84.007 g/mol
m= n× M/1000
m= 16.9 × 84.007 /1000
m= 1.42 Kg
Answer:
They are listed below
Explanation:
The 5 things that the periodic table includes are;
1. Name of the element
2. The symbol of the element
3. Atomic number of the element
4. Relative atomic mass
5. Electron configuration
Answer:
prohibited because of germs that are on your phone.
Explanation:
Answer:
- .
Explanation:
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