Answer is: in chemical reaction with with weak acid, sodium carbonate produce carbonic acid (H₂CO₃), which decomposes into carbon(IV) oxide (fizzy bubbles) and water.
Balanced chemical reaction:
Na₂CO₃ + 2HClO → CO₂(g) + H₂O + 2NaClO.
Chemical decomposition is the separation of a carbonic acid into water and carbon dioxide: H₂CO₃ → CO₂ + H₂O.
Answer:
Explanation:
density = mass / volume
mass = 17.95 grams
volume = 17.97 - 15.50 mL = 2.45 mL = 2.45 cc
density = 17.95 /(2.45) = 7.327 grams / cc
Answer:
42.1 kj
Explanation:
Given data:
Molar heat of vaporization = 3.86×10⁴ j/mol
Mass of ethanol = 50 g
Amount of heat required to convert into gaseous form = ?
Solution:
First of all we will calculate the number of moles of ethanol.
Number of moles = mass/ molar mass
Number of moles = 50.0 g/ 46.07 g/mol
Number of moles = 1.09 mol
H(vap) = number of moles × molar heat of vaporization
H(vap) = 1.09 mol × 3.86×10⁴ j/mol
H(vap) = 4.21×10⁴ j
In Kj:
4.21×10⁴ / 1000 = 42.1 kj
Answer:
See explaination
Explanation:
The mole balance for a constant-volume batch reactor is given such as, For a first-order isothermal reaction, the time to reach a given conversion is the same for constant-pressure and constant-volume reactors. Also, the time is the same for a reaction of any order if there is no change in the number of moles.
Please kindly check attachment for the step by step solution of the given problem.
Hello mayaredalen. I do believe the exact corrected balanced equation will be that of 2 H2+2 Cl2=> 4 HCl. I'm really sorry if I gave you any wrong information. It's best to make sure before importing such a balance equation to your assignment.
