A student in chm 11500 lab measured the mass of a 250-ml erlenmeyer flask and recorded it as 79. 83 g. She added 10. 00 ml of de

Question

Natasha2012 [34]

11 months ago

7

A student in chm 11500 lab measured the mass of a 250-ml erlenmeyer flask and recorded it as 79. 83 g. She added 10. 00 ml of de

ionized water from a 25-ml buret to the flask. The mass of the flask plus the water was 89. 82 g. The temperature of the water was 22 °c. What is the calculated volume of the water that the student measured?.

Chemistry

1 answer:

umka2103 [35] · Answer 1 · 2024-09-11T14:00:54+03:00

An Erlenmeyer flask is also termed as conical flask and titration flask. Invented in the year 1860. It is made up of glass and plastic. Inventer - Emil Erlenmeyer

Weight of empty erlenmeyel flask = 79.83 g

Weight after addition of water = 89.82 g

Weight of water = 89.82 - 79.83 = 9.99 g

Density of water at 22 deg celcius = 0.99777

Density = mass / volume

Volume = mass / density

= 9.99 g / 0.99777 g/ ml

= 10.01 ml

Calculated volume of water that the student measured is 10.01 ml.

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