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Airida [17]
3 years ago
6

Calculate the number of moles in 15 liters of oxygen at STP.

Chemistry
1 answer:
zloy xaker [14]3 years ago
8 0
<span>the answer is 0.67 mol.

</span>
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Determine a detailed mechanism for the chlorination of benzene using cl2 and fecl3.
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Step (2):
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7 0
2 years ago
Calculate molality,molarity and mole fraction of KI if the density of 20%(mass) aqueous KI is 1.202 g/mL
Scorpion4ik [409]
Basis: 1 L of the substance.
               (1.202 g/mL) x (1000 mL) = 1202 g 
                   mass solute = (1202 g) x 0.2 = 240.2 g
                   mass solvent = 1202 g x 0.8 =  961.6 g
                   moles KI = (240.2 g) x (1 mole / 166 g)  = 1.45 moles
                   moles water = (961.6 g) x (1 mole / 18 g) = 53.42 moles
1. Molality = moles solute / kg solvent 
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2. Molarity = moles solute / L solution
                  = 1.45 moles / 1 L solution = 1.45 M
3. molar mass = mole solute / total moles
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5 0
3 years ago
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