Author Topic: Chemistry calculations (Read 1534 times) Tweet Share

Stargirl123 · « **on:** January 13, 2018, 02:18:40 pm »

Determine the volume of 250g of water using the year 12 data book.

So confused:/

Lear · « **Reply #1 on:** January 13, 2018, 02:25:20 pm »

Hey
Here is your chemistry data book provided by VCAA - http://www.vcaa.vic.edu.au/Documents/exams/chemistry/chemdata-w.pdf

At the bottom of page 5 you will see the density of water at 25 degrees. From there you can complete this calculation.
Hope it helps

Yertle the Turtle · « **Reply #2 on:** January 13, 2018, 02:25:41 pm »

Determine the volume of 250g of water using the year 12 data book.

So confused:/

Use the density of water, which from memory is 1g/mL, and use the formula
D=m/V
so 1=250/V
Therefore V=250mL

Lear · « **Reply #3 on:** January 13, 2018, 02:27:08 pm »

Use the density of water, which from memory is 1g/mL, and use the formula
D=m/V
so 1=250/V
Therefore V=250mL

This is usually correct but depends on the conditions. Our data book shows that the density of water at 25 degrees is 0.997g per ml

Yertle the Turtle · « **Reply #4 on:** January 13, 2018, 02:34:14 pm »

This is usually correct but depends on the conditions. Our data book shows that the density of water at 25 degrees is 0.997g per ml

True, it does depend, sorry, but I didn't have access to the data booklet and was working from memory

Stargirl123 · « **Reply #5 on:** January 13, 2018, 04:56:12 pm »

Use the density of water, which from memory is 1g/mL, and use the formula
D=m/V
so 1=250/V
Therefore V=250mL

thank you!!

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