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:
Explanation:
Mallabone’s tests suggest there’s no risk the jacket liner will explode or heat up so much that it risks causing burns. The reaction also doesn’t produce acidic byproducts. And because calcium oxide doesn’t react with humidity (water vapor in the air), the liners can be stored for long periods and still work when needed.
Calcium oxide: A substance that gives off heat as it chemically reacts with water. Its chemical formula is CaO (which means each molecule is made up of one calcium atom and one oxygen atom).
Exothermic reaction: A chemical reaction that generates heat as it proceeds. (In Greek, “exo” means outside and “therm” means heat.)
Thought this might help ;)
1. 2.408 x 10²⁴ molecules
2. 2.408 x 10²⁴ atoms
3. 4.816 x 10²⁴ atoms
<h3>Further explanation</h3>
Given
4 moles of Carbon dioxide.
Required
Carbon dioxide molecules
Carbon atoms
Oxygen atoms?
Solution
1 moles = 6.02 x 10²³ particles(molecules, atoms, ions)
1. Carbon dioxide molecules :
= 4 moles x 6.02 x 10²³
= 2.408 x 10²⁴ molecules
2. The number of Carbon atoms
In CO₂, there is 1 atom C, so the number of atoms :
= 1 x 2.408 x 10²⁴
= 2.408 x 10²⁴ atoms
3. The number of Oxygen atoms :
In CO₂, there is 2 atom O, so the number of atoms :
= 2 x 2.408 x 10²⁴
= 4.816 x 10²⁴ atoms
Answer:
this is false took the test
Explanation:
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