Sunday
December 8, 2013

# Posts by CASSANDRA

Total # Posts: 178

Chemistry
in step 2 aren't you supposed to divide by the molar mass of vitamin C (176.12)?

Chemistry
would 5.61x10^-5 make sense for the molarity for the original unknown sample of vit C solution prior to dilution?

Chemistry
would 5.61x10^-5 make sense for the molarity for the original unknown sample of vit C solution prior to dilution?

Chemistry
Nevermind. i figure it out. Thank you so much for your help!

Chemistry
to find the molarity of the original vit C do you just divide the moles found in 1 divided by 0.001 L or 1.0 mL?

Chemistry
to find the total moles of iodine, do you just multiple 8.5x10^-4 by .00660 L?

Chemistry
we are not given the molar mass of the vit. C. how are we supposed to find the milligrams of vit C are in the orginal sample?

Chemistry
A student has 100.0 mL of an unknown solution of Vitamin C. She removes 1.00 mL of this solution, dilutes it to 50.0 mL, and titrates this second solution with an iodine solution solution that 8.5x1^-4 M. 6.60 mL of iodine solution is required to reach the endpoint. 1. How man...

physics
The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 6.60 m, measured from its tip to the center of the circle. Find the ratio of the centripetal acceleration at the end of the blade to that which exists at a point located 2.34 m from ...

Chemistry
Then calculate the inital ClO^- concencentrations for 1st, 2nd, and 3rd reactions. Calculate [ClO^-] in a 6% bleach solution. A 6% bleach solution contains 6 grams of NaClO per 100 grams bleach. The density of 6% bleach is 1.07g/mL. Chemical reaction: Blue dye + ClO^- -->ox...

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