Processing kodak motion picture films, module 3 analytical procedures

CALCULATIONS
NaBr, g/L = (mL AgNO3 ) x (N AgNO3 )x (eq. wt. NaBr) x (1000)
(mL sample) x (1000)
where:
mL AgNO3 =mL AgNO3 consumed
N AgNO3 = Normality of AgNO3 in meq./mL used for
titration
eq. wt. NaBr = 102.91 mg/meq
mL sample = 1.0 mL (effective sample size)
1000 = factor to convert meq to eq in the
numerator and mL to L in the denominator
NaBr, g/L =
Example:
(mL AgNO3 )x (N AgNO3 ) x (102.91) x (1000)
(1.0) x (1000)
NaBr, g/L = (15.32 mL AgNO3 ) (0.0495 N AgNO3 ) (102.91) (1000)
(1.0 mL) x (1000)
NaBr, g/L = 78.7 g/L
4 Processing KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03