Mathematics, 16.10.2019 00:50, cdradlet2001
1. calculate the amount of fluorescein (mw 332.31) you will need to make 10 ml of 15 mm solution in ethanol (etoh).
my 0.05 g 2.using equation c1v1=c2v2 calculate the volume of stock solution (15 mm) you need to make 1 ml of each working solution concentration: 0 mm and 0.25 mm. remember to convert your volumes to microliter.
my answers: volume for 0mm --> 0 microliter volume for 0.25 mm--> 16.67 ~ 17 microliter 3. calculate the volume of di h2o needed for each. remember that this volume will be the total final volume minus the volume of stock solution you calculated.
my answers: volume of water for the 0 mm --> 10,000 microliter subtract 0 microliter = 10,000 microliter
volume of water for the 0.25 mm --> 10,000 microliter subtract 17 microliter = 9983 microliter
Answers: 2
Mathematics, 22.06.2019 01:50, Aidanme25
If its non of them tell me..valerie took a day-trip. she drove from her house for a while and took a coffee break. after her coffee break, she continued driving. after 2 hours of driving after her coffee break, her distance from her house was 210 miles. her average speed during the whole trip was 60 miles per hour. valerie created the equation y−210=60(x−2) to represent this situation, where xx represents the time in hours from her coffee break and yy represents the distance in miles from her house. which graph correctly represents valerie's distance from her house after her coffee break?
Answers: 1
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