Question
1) 0.1% w/v = ? mg/100 ml? Only include the number and not any units 2)0.1% = ? ug/ml? Only include the number and not
1) 0.1% w/v = ? mg/100 ml? Only include the number and not any units
2)0.1% = ? ug/ml? Only include the number and not any units
3)The molecular weight of tartrazine is 534.4 g/mole. What is the concentration of your stock solution in mM? Be sure to give your answer in milliMolar to TWO decimal places
4)What dilution of your stock do you need to get the first standard (100 ug/ml)? Express as 1:x, where x is the fold dilution needed.
5)What weight of tartrazine (in mg) would you need to make up 250 mL of a 2.5 mM solution (MW of tartrazine is 534.4 g/mole)? Give your answer to the nearest whole number. write the number only, not the units
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