If the temperature of a piece of aluminum increases from 19°C to 34°C and it absorbs 278.5 cal of heat, what is the mass of the sample?
A. 901.19
B. 86.19
DATA TABLE 1
Specific Heat of Common
Substances
Specific
Heat
Substance Formula
(cal/g
°C
Aluminum A1 0.2157
Zinc Zn 0.0928
Iron Fe 0.1074
Ethanol C2H5OH 0.5783
Tin Sn 0.0543
Nickel Ni 0.1062
C. 18.5 g
D. 0.012 g

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Calculate the mass of 0.750 mol of the following substance. na3po4. , i'm not quite sure on how to set up the problem to solve! : (

Two examples of energy transformations are shown. the energy transformations are similar because they both involve transformations that begin with chemical energy. begin with electrical energy. result in radiant energy. result in mechanical energy.