6. What are the values/formulas of the following? a) melting point of water (in

Question

6. What are the values/formulas of the following? a) melting point of water (in all 3 units) b) boiling point of water (in all 3 units) c) the density of water d) the formula for density e) the formula to obtain Kelvin from 9C 7) (Challenge) A dry and empty graduated cylinder weighs 57.4502 g. You add just a tad bit too much water to it, and the meniscus goes above the last scale marking so you can't read the volume. Instead, you weigh the gradua cylinder with the water and find that the mass is 78.0015 ted a) How many milliliters of water did you add to the cylinder? What information did you use that is not given in the problem? b) What do you think is the maximum volume the graduated cylinder can measure? Explain your reasoning

Explanation / Answer

a) Melting point The temperature at which solid get conveted into liquid.

So melting point of water = 0°C (273.15 K and 32° F).

b) Boiling point :The temperature at which liquid boils to get converted into gas.

Boiling point of water = 100°C ( 373.15 K and 212°F)

c) Density of water :

Example : if 100 mL of water have weight 98.27 gm then density is (i.e. mass of water =98.27 gm & volume =100 mL)

Density = Mass /volume = 98.27 /100 =0.9827 gm /mL

Density of water = 0.9827 gm /mL

d) Formula for Density = mass/ volume

e) Formula for to obtain kelvin from°C

Temperature in k = 273.15 + °C

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