Answer: The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles SO2, or 64.0638 grams.
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I think that the answer is probably b-the liquid water particles turn into water vapor that spreads in the air
Answer:
Tests for unsaturation involves addition across the multiple bonds in the unsaturated compound.
Explanation:
In organic chemistry, we define an unsaturated compound as any compound that contains a double or triple bond. These multiple bonds are also known as pi bonds.
There are two major tests for unsaturation which shall both be discussed here.
The first test for unsaturation is by the use of bromine water. The unknown sample is passed through a solution of bromine water which normally appears reddish brown. The bromine water becomes decolorized due to addition of bromine across the multiple bond. This is a standard test for unsaturation.
Secondly, unsaturated compounds decoulourize a solution of potassium permanganate when passed through it. This alone can not be used as a distinctive test for unsaturation.
Propenoic acid will give a positive test to the both reagents showing that it contains multiple bonds, in this particular instance, a double bond.
Answer:
Explanation:
Equation of reaction:
2HCl → H₂ + Cl₂
From the equation of reaction,
From ideal gas equation,
PV = nRT
P = pressure of the ideal gas
V = volume of the gas
n = number of moles
R = ideal gas constant
T = temperature of the gas
At STP,
P = 1.0atm
T = 273.15K
R = 0.082J/mol.K
PV = nRT
1 .0 × 11.2 = n × 0.082 × 273.15
11.2 = 22.398n
n = 11.2 / 22.398
n = 0.50mole
From the equation of reaction,
2 moles of HCl = 1 mole of Cl₂
X moles HCl = 0.5mole
X = (2 × 0.5) / 1
X = 1 mole of HCL
Number of mole = mass / molar mass
Molar mass of HCl = 1 + 35.5 = 36.5g/mol
Mass = number of mole × molar mass
Mass = 1 × 36.5
Mass = 36.5g
36.5g of HCl is required to to produce 11.2L of Cl₂
