What type of bond would two sulfur atoms require to form a molecule?
2 answers:
Answer: double covalent bond
Explanation:
Ionic bonds are formed by transfer of electrons between metal and non metals.
Covalent bonds are defined as the bonds which are formed by the sharing of electrons between the atoms forming a compound. This bond is usually formed between two non-metals.
As sulfur molecule is formed by combination of two atoms of sulfur which is a non metal, thus form a covalent bond.
These can be single as well as multiple bonds depending on the number of electrons. Single bond is formed by the sharing of two electrons and multiple bonds are formed by the sharing of more than two electrons.
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Answer:
236.9g
Explanation:
Given parameters:
Volume of gas = 81.3L
Pressure of gas = 204kPa
temperature of gas = 95°C
Unknown:
Mass of carbondioxide gas = ?
Solution:
To solve this problem, the ideal gas law will be well suited. The ideal gas law is a fusion of Boyle's law, Charles's law and Avogadro's law.
Mathematically, it is expressed as;
PV = nRT
the unknown here is n which is the number of moles;
P is the pressure, V is the volume, R is the gas constant and T is the temperature.
convert pressure into atm
101.325KPa = 1atm
204 kPa = = 2atm
Convert temperature to Kelvin; 95 + 273 = 368K
2 x 81.3 = n x 0.082 x 368
n = = 5.38moles
Since the unknown is mass;
Mass = number of moles x molar mass
Molar mass of carbon dioxide = 12 + 2(16) = 44g/mol
Mass = 5.38 x 44 = 236.9g