Answer:
The molar mass of the unknown gas is 154.4 g/mol
Explanation:
Step 1: Data given
It takes 986 seconds for an unknown gas to effuse
It takes 811 seconds for chlorotrifluoromethane (CClF3) gas to effuse
Molar mass of chlorotrifluoromethane (CClF3) = 104.46 g/mol
Step 2: Calculate the molar mass of the gas
t1/t2/ √(M1/M2)
⇒with t1 = the time needed for the unknown gas to effuse = 986 seconds
⇒with t2 = the time needed for CClF3 to effuse = 811 seconds
⇒with M1 = the molar mass of the unknown gas = TO BE DETERMINED
⇒with M2 = the molar mass of CClF3 = 104.46 g/mol
986/811 = √(M1/104.46)
(986/811)² = M1 / 104.46
M1 = 154.4 g/mol
The molar mass of the unknown gas is 154.4 g/mol
Direct Combination Reaction : The reaction in which two or more substances combine to form a single substance is called direct combination reaction. Synthesis Reaction: The reaction in which two or more elements combine to form a compound is called direct combination reaction.
HOPED I HELP BRIANEST PLZZ
Answer:
Valence electrons or outer electrons are most important as they participate in bonding. The octet rule states that atoms gain, lose, or share valence electrons to have filled energy levels.. this gives atoms a stable configuration like that of the nearest noble gas.
<span>the highest ionization energy is Be, it is higher and righter than other elements in periodic table, so it harder to remove electron from its atom</span>
The answer is B. Continental Drift (Confidently)
