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Chemistry 20 > Formulas for Chemistry 20 > Flashcards

Formulas for Chemistry 20 Flashcards

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1
Q

How do you solve for graviametric stoichiometry?

A
  1. Balance
  2. Find the moles for given
  3. Find the moles for required
  4. Use the moles of required to determine the appropriate amount
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2
Q

What is the formula for Boyle’s Law?

A

P1V1 = P2V2

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3
Q

What is the formula for Charles’ Law?

A

V1 / T1 = V2 / T2

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4
Q

What is the formula for Ideal Gas Law?

A

PV = nRT

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5
Q

What is the formula for Combined Gas Law?

A

P1V1 / T1 = P2V2 / T2

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6
Q

What is the formula for %volume by volume?

A

Vsolute / Vsolution x 100%

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7
Q

What is the formula for %weight by volume?

A

Msolute / Vsolution x 100%

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8
Q

What is the formula for %weight by weight?

A

Msolute / Msolution x 100%

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9
Q

What is the formula for Law of Combining Volumes?

A

coefficient required / coefficient given x given amount

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10
Q

What is the formula for Molar Volume?

A

N = V / Vm

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11
Q

What is the formula for Concentration?

A

C = n / v

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12
Q

What is the formula for dilution?

A

C1V1 = C2V2

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13
Q

What is the 3 formulas that I can use for Ppm?

A

Ppm = msolute (g) / msolvent (g) x 10 to the power of 6

Ppm = msolute (mg) / Vsolvent (L)

Ppm = msolute (mg) / msolvent (kg)

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14
Q

What is the formula to find hydronium?

A

[H3O+] = 10-(negative) pH

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15
Q

What is the formula to find hydroxide?

A

[OH-] = 10-(negative) pH

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16
Q

What is the formula to find pH?

A

pH = -log [H3O+]

17
Q

What is the formula to find pOH?

A

pOH = -log [OH-]

18
Q

How do you find percent yield?

A

%yield = actual amount produced / theoretical amount produced 100%

19
Q

What is the formula for percent error?

A

theoretical amount - actual amount / theoretical amount x 100%

20
Q

How do you solve for gaseous stoichiometry?

A
  1. Balanced equation.
  2. Moles of given substance (n = PV / RT) (n = m / M) or Molar Volume at STP or SATP (n = CV)
  3. Moles of required substance (n = coefficient required / coefficient given x number of moles)
  4. Moles of required to calculate appropriate amount requested (m = nM, PV = nRT, n = V / Vm)
21
Q

How do you solve for volumetric stochiometry?

A
  1. Balanced equation.
  2. Moles of given substance (n = CV or n = m / M)
  3. Amount of moles of your required substance (n = coefficient required / coefficient given x number of moles)

Chemistry 20 (6 decks)

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