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UNO [17]
3 years ago
7

Which type of reaction occurs when 50mL quantities of 1 M Ba(OH)2 (aq) and H2SO4 (aq) are combined

Chemistry
1 answer:
iragen [17]3 years ago
5 0
Double replacement.

Ba(OH)2 + H2SO4 ====> 2H2O + BaSO4
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A student decided to research primate psychology for their science project. They measured how long it took gorillas to adapt to
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Which statement correctly compares electric charge with electric current?
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Your answer would be D) They both require a movement of charged particles

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What scientific instrument is capable of measuring very small masses?​
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Electronic balances.

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5 0
3 years ago
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In trying to control fall armyworms in crops, an Agriculture extension officer applied cypermethrin which was prepared by dissol
sveta [45]

Answer:

Mole fraction for C₂₂H₁₉Cl₂NO₃ = 0.0086

Explanation:

Mole fraction remains a sort of concentration. It indicates:

moles of solute / (moles of solute + moles of solvent)

Moles of solute / Total moles.

Solute: Cypermethrin → C₂₂H₁₉Cl₂NO₃

Solvent: Water (PM = 18g/mol)

We calculate moles from solvent: 1000g /18 g/mol = 55.5 moles

We calculate PM for C₂₂H₁₉Cl₂NO₃

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Moles of solute: 200 g / 416g/mol = 0.481 moles

Total moles: 0.481 + 55.5 = 55.98 moles

Mole fraction for C₂₂H₁₉Cl₂NO₃ = 0.481 moles / 55.98 moles = 0.0086

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