Answer:
A homologous series is a family of hydrocarbons with similar chemical properties who share the same general formula. We will look at three hydrocarbon series: alkanes, alkenes and the cycloalkanes. Hydrocarbons are compounds that contain only hydrogen and carbon.
Explanation:
Answer:the volume will be 2.15L
Explanation:
V1 = 2.35L
V2 =?
T1 = 20°C = 20 +273 = 293k
T2 = - 5°C = - 5 + 273 = 268k
V1 /T1 = V2 /T2
2.35 /293 = V2 /268
V2 = (2.35 / 293) x 268
V2 = 2.15L
Answer:
2Na+F2 yields 2NaF is balanced.
Explanation:
There are 2 sodium and 2 fluorine in both reactants and product: In 2NaF the 2 is distributed because it is in the beginning of the compound.
212 g of sodium carbonate (Na₂CO₃)
Explanation:
We find the number of moles of sodium carbonate (Na₂CO₃) using the following formula:
molar concentration = number of moles / volume (L)
number of moles = molar concentration × volume (L)
number of moles of Na₂CO₃ = 4 × 0.5
number of moles of Na₂CO₃ = 2 moles
Now we calculate the mass of sodium carbonate (Na₂CO₃):
number of moles = mass / molar weight
mass = number of moles × molar weight
mass of Na₂CO₃ = 2 × 106
mass of Na₂CO₃ = 212 g
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molar concentration
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