When diluting the commercial vinegar, what would have been the effect on acetic acid molarity of failing to rinse the pipet with commercial vinegar, assuming there was some distilled water left in the pipet from a previous student?  (Think about how the concentration of the commercial vinegar is affected by the water in the pipet).

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Q: 15. How much calcium chloride would you dissolve in 250 mL to make 120 ppm primary standard solution…

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