Enzymes Transcription: Transcription factors (eukaryotes), RNA polymerase
<span>Enzymes Translation: initiation factors, elongation factors, termination factors </span>
<span>Molecules transcription: mRNA , DNA </span>
<span>Molecules translation: ribosomes, tRNA, mRNA, GTP (energy source)</span>
The _____melting point________ is the temperature at which a substance changes from solid to liquid; _______boiling point_________ is the temperature at which a substance changes from a liquid to as gas; _______vapourisation_________ is the process by which atoms of molecules leave a liquid and become a gas.
Answer:
2.35 L
Explanation:
Given data:
Mass of sodium metal = 4.81 g
Volume of Cl react at STP= ?
Balance chemical equation = ?
Solution:
Balance chemical equation:
2Na + Cl₂ → 2NaCl
Number of moles of Na:
Number of moles = mass/ molar mass
Number of moles = 4.81 g/ 23 g/mol
Number of moles = 0.21 mol
Now we will compare the moles of sodium and chlorine from balance chemical equation.
Na : Cl₂
2 : 1
0.21 : 1/2×0.21 = 0.105 mol
Volume of Cl₂:
PV = nRT
standard temperature = 273 K
standard pressure = 1 atm
R = general gas constant = 0.0821 atm.L/mol.K
n = moles = 0.105 mol
Now we will put the values.
V = 0.105 mol × 0.0821 atm.L/mol.K × 273 K / 1 atm
V = 2.35 L/ 1
V = 2.35 L
