FORMULAS Flashcards

1
Q

MEAN xbar

A

∑x / n

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2
Q

standard deviation s

A

√(Σx-)² / n-1

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3
Q

variance (s)²

A

(x-xbar)² / n-1

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4
Q

UCL

A

xbar + 3s

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5
Q

LCL

A

xbar - 3s

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6
Q

CAPSULE: %weight variation

A

x / xbar x 100

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7
Q

TABLET: %weight variation

A

|x-xbar| / xbar x 100

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8
Q

mEqwt

A

MW / feq x 1000

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9
Q

%A content/purity

A

mL x N x mEqwt / g x 100

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10
Q

N₁

A

N₂V₂ / V₁

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11
Q

Normality N

A

g / mL x mEqwt

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12
Q

g

A

N x mL x mEqwt

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13
Q

mL

A

g / N x meqwt

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14
Q

volume of titrant mL

A

g x %A / N x mEqwt x 100

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15
Q

Titermg

A

N x MW / feq

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16
Q

TiterN

A

mg x feq / MW

17
Q

%Atiter

A

mL x NF x mgtiter / mgsample x 100

18
Q

normality factor NF

A

Nactual / Ntheoretical

19
Q

%Aresidual

A

(NxsVxs) - (NtiterVtiter) x mEqwt / gsx x 100