Specific heat and molar mass

[dilasluis]

Given the molar mass of Fe and the specific heat of Sn, what is the specific heat of Fe and the molar mass of Sn in approximate values?

 

[Mapes]

Please show your attempt to answer the problem, as is required on this forum.

 

[kerimek]

To determine the specific heat of Fe and the molar mass of Sn, we can use the equation Q = mCΔT, where Q is the heat absorbed or released, m is the mass, C is the specific heat, and ΔT is the change in temperature.

First, we can rearrange the equation to solve for C: C = Q / (mΔT). We know the molar mass of Fe (55.845 g/mol) and the specific heat of Sn (0.21 J/g°C), so we can substitute those values into the equation along with the mass of Fe (let's say 100 grams) and the change in temperature (let's say 10°C):

C = Q / (mΔT)
C = (100 g)(0.21 J/g°C) / (55.845 g/mol)(10°C)
C = 0.378 J/mol°C

Therefore, the specific heat of Fe is approximately 0.378 J/mol°C.

To find the molar mass of Sn, we can rearrange the equation again to solve for m: m = Q / (CΔT). We know the molar mass of Fe (55.845 g/mol) and the specific heat of Sn (0.21 J/g°C), so we can substitute those values along with the heat absorbed or released (let's say 500 J) and the change in temperature (let's say 20°C):

m = Q / (CΔT)
m = (500 J) / ((0.21 J/g°C)(20°C))
m = 119.05 g/mol

Therefore, the molar mass of Sn is approximately 119.05 g/mol.

It is important to note that these values are only approximations and may vary depending on the actual values used in the calculations. Additionally, the specific heat and molar mass of a substance can also vary depending on factors such as temperature and pressure. Further experimentation and analysis would be needed to determine more precise values.