4. The reading on a Kelvin scale Is 274 degrees C. On the Celsius scale the read

Question

4. The reading on a Kelvin scale Is 274 degrees C. On the Celsius scale the reading would be what? 5. The denser a liquid is, the easier it is for an object to float on it. If a substance floats in an unknown liquid but sinks in water, what does that tell you about the densities of water and the unknown liquid? 6. Would it be much easier to separate a mixture of NaCI and sugar than NaCI and Sand? Explain 7. How do you know when two variables are inversely proportional and direct proportional to each other? Give one example of two variables that are inverse to each other from one experiment we did this semester and another example of two variables that are direct proportional to each other 8. How Ma (Va) Mb (Vb) differs from M1 (V1) M2 (V2)? Under what condition do you use these two formulas? Why is it important to dispose of chemical waste in the proper location? Explain. Is it ever acceptable to pour chemicals down the drain? Explain. 9.

Explanation / Answer

4)

we have:

K = 274 K

we have below equation to be used:

C = K - 273.15

C = 274 - 273.15

C = 0.850

Answer: 0.850 oC

5)

since object sinks in water, density of water is less than object

since object floats in unknown liquid, density of unknown liquid is more than object

Combing both statements we get,

density of water is less than unknown liquid

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