Answer:
Pressure = 1820 mmHg ... T = ( 2.39atm x 5.12L ) / ( 0.4041 moles x 0.08206atm. ... n is moles, R is the gas constant, and T is temperature in Kelvins.
Explanation:
this might help you
<h2>
<em><u>PLEASE MARK BRAINLIEST</u></em></h2>
760 mmHg = 1 atm Therefore 30 atm = 760 * 3 mmHg = 2280 mmHg p1 = 700 mmHg p2 = 2280 mmHg You can compare them from there. You may also convert mmHg to atm by dividing by 760.
Your answer would be 243.2 mm Hg
Ans 118
There are 118 known elements on the periodic table. The most recently discovered element, Ununoctium, was first reported by Russian scientists from Dubna in 2002.
The hybridization of the central atom in SCl₂ is sp³.
<h3>What is Lewis Structure ? </h3>
Lewis structure is also known as Lewis dot structure which simply represent the valence electron of an atom.
<h3>What is Hybridization ? </h3>
Hybridization is defined as the mixing of two atomic orbitals belongs to same atom but having entirely different shapes , energies which produces a new hybridized orbitals.
Now first write the electronic configuration of central atom.
The central atom in SCl₂ is S (Sulphur).
Electronic configuration of S: [Ne] 3s² 3p⁴
One 3s and three 3p undergo hybridization to form sp³ orbitals. Here each atom forms bond with one sp³ hybrid orbital.
Thus from the above conclusion we can say that The hybridization of the central atom in SCl₂ is sp³.
Learn more about the Hybridization here: brainly.com/question/24180903
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10) You need to find the atomic mass of every element, which you can get from any periodic table.
a) 6.02x10^23 atoms of Mg
Atomic mass of Mg = 24.3 g/mol
# of mols = 6.02 x 10^23 atoms / 6.02 x 10^23 atoms/mol = 1 mol
mass = 1 mol x 24.3 g/mol = 24.3 g
b) 3.01x10^23 formula units of Ca Cl2
Atomic masses
Ca: 40 g/mol
Cl: 35.5 g/mol
Formula mass: 40g/mol + 2x 35.5g/mol = 111 g/mol
# of mols = 3.01 x 10^23 / 6.02 x 10^23 = 0.5 mol
mass = 0.5 mol x 111 g/mol = 55.5 g
c) 12.4 x 10^15 molecules of CH2O
formula mass = 12 g/ mol + 2 g/mol + 16 g/mol = 30 g/mol
# of mols
mass = [12.4 x 10^15 / 6.02 x 10^23]mol x 30 g/mol = 2.1 x 10 ^(-8) g
3)
a) The polar solute is dissolved in water which is a polar solvent, while the non polar solute is not dissolved in water. This is a rule in chemistry: polar solvents dissovle polar soultes and non polar solvents dissolve non polar soluted.
The extremes of the polar molecules are easily solvated by the water molecules.
b) KI is an ionic compound, which implies that it will ioinize (separare in iones) in water, being in this way be dissolved, while the CO2, which is no polar, will not be easily dissolved in water under normal conditions
