Final answer:
A 445g sample at -58 degrees Celsius has the same mass of 445g, as temperature changes do not affect the mass of an object if it remains in the same state and no chemical reactions have occured.
Step-by-step explanation:
The mass of a substance does not change with temperature unless the substance changes state or undergoes a chemical reaction. Therefore, the mass of a 445g sample at -58 degrees Celsius is still 445g. When dealing with the mass of a substance, it's important to understand that mass is a measure of the amount of matter in an object and is consistent across changes in temperature. The examples provided seem to relate to calculations involving changes in energy or temperature of a substance, but these do not affect the mass of the sample itself.