Answer:
Explanation:
aCa + bCO₂ + cO₂ → dCaCO₃
Chemical reactions obey the law of conservation of matter. The law states that "matter is neither created nor destroyed in the course of a chemical reaction". From this, we can deduce that the total mass of the products and reactants are equal.
To balance a chemical reaction, we can do so by inspecting the atoms/compounds involved and putting the appropriate coefficients at the back of the reactants and products. For equations in which inspection might not easily work, we can use a mathematical approach.
By inspecting the reaction above, we can easily balance it
Using the mathematical approach:
The coefficients are a,b,c and d. They are needed to conserve the atoms. So:
For Conservation of Ca: a = d (i)
C: b = d (ii)
O: 2b + 2c = 3d (iii)
if we assume that a = 1, then d = 1
b = 1
from (iii): 2c = 3d -2b
2c = 3- (2 X 1)
2c = 1
c =
Therefore we have a = 1
c =
b = 1
d = 1
aCa + bCO₂ + cO₂ → dCaCO₃
Ca + CO₂ + O₂ → CaCO₃
The amine compounds are those compounds that contain nitrogen attached to the carbon chain.
<h3>What is an amine?</h3>
Thee term amine refers to a compound that contains the amine group (-NH2). The amine compounds are those compounds that contain nitrogen attached to the carbon chain.
I have shown three structures that correspond to the formula C5H13N. The names of the structures are also shown. From left to right, all the structures that are shown are all tertiary amines.
Learn more about amines;brainly.com/question/28167507
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Answer:
The molecular formula of benzene =
Explanation:
% of C = 92.3
Molar mass of C = 12.0107 g/mol
% moles of C = = 7.6848
% of H = 7.7
Molar mass of H = 1.00784 g/mol
% moles of H = = 7.6401
Taking the simplest ratio for C and H as:
7.6848 : 7.6401
= 1 : 1
The empirical formula is =
Molecular formulas is the actual number of atoms of each element in the compound while empirical formulas is the simplest or reduced ratio of the elements in the compound.
Thus,
Molecular mass = n × Empirical mass
Where, n is any positive number from 1, 2, 3...
Mass from the Empirical formula = 12+ 1 = 13 g/mol
Molar mass = 78.0 g/mol
So,
Molecular mass = n × Empirical mass
78.0 = n × 13
⇒ n ≅ 6
<u>The molecular formula of benzene = </u>
Answer:
46.97g
Explanation:
Hello,
To find the theoretical yield, we must first of all get the equation of reaction right in order to know how the compounds combine together.
Equation of reaction;
2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O
From the equation of reaction,
2 moles of C₂H₆ reacts with 7 moles of O₂ to produce 4 moles of CO₂.
Number of moles = mass / molar mass
Mass = number of moles × molar mass
Mass of CO₂ = 4 × 44 = 176g
Mass of C₂H₆ = 2 × 30 = 60g
Mass of O₂ = 7 × 32 = 224g
Therefore, 224g + 60g (O₂ + C₂H₆) = 176g of CO₂.
284g of reactants = 176g of product(CO₂)
(18 + 57.8)g of reactants = x g of products(CO₂)
X = (75.8 × 176) /284
X = 46.97g of CO₂.
Theoretical yield of CO₂ is 46.97g
Answer: 2. Determine the molarity of 2.5 L solution made with 698g rubidium chloride (RbBr).
Explanation: