How many moles of a gas sample are in a 5.0 L container at 373 K and 203 kPa? 0.33 mole

0.66 mole

1.11 moles

3.05 moles

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %

Moving force of air flows from areas of high pressure to areas of low pressure true or false

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.