When it is water, what state is it solid, liquid or gas?
1 answer:
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Answer:
C2H8N
Explanation:
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In this case, since the molecular formula is the complete representation of the considered chemical compound and the empirical one is the smallest possible whole-numbered representation of the former, we infer that the ratio of the molar masses of these two provides the times in which the empirical formula is within the molecular one; for that reason, we first compute the molar mass of the empirical formula:
Thus, since the ratio is 46/46=1, we infer that the molecular formula is also C2H8N.
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Answer:
1.04 L
Explanation:
Charles law states that for a fixed mass of gas, volume of gas is directly proportional to the absolute temperature at constant pressure.
where V1 is the volume and T1 is absolute temperature at first instance
and V2 is volume and T2 is absolute temperature at the second instance
Absolute temperature is temperature in the kelvin scale
T1 - 25 °C + 273 = 298 K
T2 - -15 °C + 273 = 258 K
substituting the values in the equation
V2 = 1.04 L
when the temperature is -15 °C the volume is 1.04 L