Answer:
(a) 1:3
(b)
mmol of OH⁻ = 1.893 mmol
mmol of H₃C₆H₅O₇: 0.6310 mmol
mass of H₃C₆H₅O₇: 0.1212 g
mass % of H₃C₆H₅O₇ in orange juice: 1.37%
molarity of H₃C₆H₅O₇ in orange juice: 0.0726 M
Explanation:
Let's consider the following balanced chemical equation.
H₃C₆H₅O₇ + 3 OH⁻ → C₆H₅O₇³⁻ + 3 H₂O
<em>(a) What is the stoichiometry of H₃C₆H₅O₇ to OH⁻? </em>
The molar ratio of H₃C₆H₅O₇ to OH⁻ is 1:3
<em>(b)</em>
<em>mmol of OH⁻: ?</em>
<em>mmol of H₃C₆H₅O₇: ?</em>
<em>mass of H₃C₆H₅O₇: ?</em>
The molar mass of the citric acid is 192.1 g/mol.
<em>mass % of H₃C₆H₅O₇ in orange juice: ?</em>
<em>molarity of H₃C₆H₅O₇ in orange juice: ?</em>
Answer:
1. Chemical, Radiant, Heat
2. Mass, Speed, Heat
3. Mechanical, Heat, Chemical
4. Heat, Electrical, Radiant
Depending on whether or not you can only use the choices at the top.
Explanation:
1. Chemical, Radiant, Thermal
2.Mechanical, Elastic, Thermal
3. Chemical, Mechanical
4. Radiant, Electrical, Thermal
Mechanical energy because of the mixing and mashing of the teeth. https://www.solarschools.net/knowledge-bank/energy/types (check this website because I'm not sure if I'm right yet).
Answer:
455 Kcal
Explanation:
2Cl2(g) + 7O2(g) + 130kcal → 2Cl2O7(g)
Rearranging we get,
2Cl2(g) + 7O2(g) → 2Cl2O7(g) Δ H = 130 kcal . mol⁻¹
So for per mol reaction will be as above.
In case of 7 mols of product, we need 7/2 mole ratio x 130 = 455 Kcal
The compound CBr4 has the highest melting point of 91°C
Explanation:
Electrons are closer to the nucleus are in filled orbitals and are called core electrons. More energy which in nucleus called nuclear strOng energy to remove electron thars why its also a way harder too..
