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Temperature of Gas (degrees C)
Near 0 degrees C 3°
Near 20 degrees C 21°
Near 40 degrees C 40°
Near 60 degrees C 57°
Near 80 degrees C 82°
Near 100 degrees C 98°

Height of the column of gas (cm)
5.7 cm
6.2 cm
6.7 cm
6.9 cm
7.4 cm
7.8 cm

Temperature of gas (K)
276 k
294 k
313 k
330 k
355 k
371 k

Volume of gas (cm^3)
0.72 cm
0.78 cm
0.84 cm
0.87cm
0.93 cm
0.98 cm

Ratio V/T (cm^3/K)
0.72/276
0.78/294
0.84/313
0.87/330
0.93/355
0.98/371
Graph!
1. Make a scatterplot of temperature (K) vs. volume (cm^3)
2. Use a regression calculator (Excel works fine) to determine the equation of the line of best fit for the scatterplot.
3. Determine R. A value close to 0 indicates that there is not a linear relationship. A value near +1 indicates that the data is strongly linear.
4. If the Volume-intercept is close to 0, volume and temperature (in K) are proportional.


Sagot :

Explanation:

chemical analysis of a compound shows that it contains 0.99g lead ,0.154g sulfur and 0.306g oxygen. what is the empirical formula of the compound.