Answer:
a.20.988m
b.21.74m
c.221652000
d.23 200kg/m^3
e.121.159
f.349.47m
g.0.43489
h.2.59108e-7
i.0.00168550368
j.76330
k.74.98764 liters
l.0.008199
plzzzzz mark me as brainliest this took me 4 hours
Chemical reaction: HSO₄⁻(aq) ⇄ H⁺(aq) + SO₄²⁻(aq);
or HSO₄⁻(aq) + H₂O(l) ⇄ H₃O⁺(aq) + SO₄²⁻(aq)
Ka₂ = [H⁺]·[SO₄²⁻]/[HSO₄⁻]; Ka₂ = 1.0·10⁻².
[H⁺] is equilibrium concentration of hydrogen cations.
[SO₄²⁻] is equilibrium concentration of sulfate anions.
[HSO₄⁻] is equilibrium concentration of hydrogensulfate(bisulfate) anions.
Answer:
3.568 g of H₂O
Solution:
The Balance Chemical Equation is as follow,
2 H₂ + O₂ → 2 H₂O
Step 1: Calculate the Limiting Reagent,
According to Balance equation,
4.04 g (2 mol) H₂ reacts with = 32 g (1 mol) of O₂
So,
0.40 g of H₂ will react with = X g of O₂
Solving for X,
X = (0.40 g × 32 g) ÷ 4.04 g
X = 3.17 g of O₂
It means 0.4 g of H₂ requires 3.17 g of O₂, while we are provided with 3.2 g of O₂ which is in excess. Therefore, H₂ is the limiting reagent and will control the yield of products.
Step 2: Calculate amount of Water produced,
According to equation,
4.04 g (2 mol) of H₂ produces = 36.04 g (2 mol) of H₂O
So,
0.40 g of H₂ will produce = X moles of H₂O
Solving for X,
X = (0.40 g × 36.04 mol) ÷ 4.04 g
X = 3.568 g of H₂O
Answer:
The possible isomers of C2H2Br2 are Cis- 1,2-dibromoethene, Trans-1,2-dibromoethene and 1,1- dibromethene
Explanation:
Isomerism is the phenomenon whereby organic molecules have the same molecular formular but different structure formular or spatial arrangement.
- When it has different structure formular, then it is referred to as Structural isomerism
- When it has different spatial arrangement, then it is referred to as Stereoisomerism
Dibromoethene has 2 Stereoisomer (Cis- 1,2-dibromoethene andTrans-1,2-dibromoethene ) and 1 structural isomer (1,1- dibromethene)
The lewis structures are structures showing the outer electron used in bonding.
(Please kindly find the attached document containing the lewis structure)
Answer:
The products have less potential energy than reactants.
Explanation:
For an exothermic reaction; the potential energy of the products is less than that of reactants.
Since, ΔH = Pot. energy of products - Pot. energy of reactants.
and it must be negative value.
The attached image shows also the potential energy diagram of an exothermic reaction.
So, the right choice is The products have less potential energy than reactants.