ChEn-1070: Introduction to Chemical Engineering Spring 2019 UMass Lowell; Profs. Manohar and de Almeida 29Oct2019

Laboratory Work 05 29Oct2019¶

Name: `your name`¶

Rubric for each assignment:¶

Context	Points
Precision of the answer	80%
Answer Markdown readability	10%
Code readability	10%

Guidance:¶

Save your work frequently to a file locally to your computer.
During your work and before submitting the final version do: `Kernel` -> `Restart & Run All`, to verify your notebook runs correctly.
Save your file again.

Assignment 1 (20 pts).¶

Using `mendeleev` and `scipy.constants`, calculate

the molar mass of H$_2$SO$_4$ (g/mol) with 5 significant figures,
the molar mass of H$_2$O (g/mol) with 5 significant figures,
the number of atoms in one mole of each substance with 7 significant figures.

In [57]:

molar mass H2SO4 [g/mol] = 9.8072e+01
molar mass H2O [g/mol] = 1.8015e+01
# of atoms per mole of H2SO4 = 4.215499e+24
# of atoms per mole of H2O   = 1.806642e+24

Assignment 2 (20 pts).¶

Using `mendeleev` and `scipy.constants`, compute the values of:

Boiling point (Celsius)
Evaporation heat in one mole (Btu)
mass density (lb/in$^3$)

for sodium using 6 significant figures¶

In [6]:

Na boiling point [C] = 8.82950e+02
Na heat capacity [Btu] = 9.27913e+01
Na mass density [lb/in^3] = 3.50796e-02

Assignment 3 (20 pts).¶

Using `mendeleev` and `scipy.constants`, compute the energy density $\rho\,c_p\,\Delta T$ for iron where:

$\rho$ is the mass density
$c_p$ is the heat capacity
$\Delta T = 86.7$ K

and express the result in Btu/in^3 using 6 significant figures¶

In [7]:

Fe energy density [Btu/in^3] = 4.69725e+00

Assignment 4 (20 pts).¶

Using `mendeleev` and `scipy.constants`, compute the mole flow rate per minute of 9.45 L/min of dodecane when its mass density is 0.75 g/cc; use 4 significant digits.¶

In [8]:

molar flow rate [mole/min] = 4.161e+01

Assignment 5 (20 pts).¶

In a mixture of ethanol and water, their mass concentrations are 0.45 g/cc and 0.83 g/cc, compute the molar density of the solution in mol/L. Using `mendeleev` and `scipy.constants`, present the result with 5 significant figures.¶

In [10]:

solution molar density [mol/L] = 5.5841e+01

Laboratory Work 05 29Oct2019¶

Name: your name¶

Rubric for each assignment:¶

Guidance:¶

Assignment 1 (20 pts).¶

Using mendeleev and scipy.constants, calculate

Assignment 2 (20 pts).¶

Using mendeleev and scipy.constants, compute the values of:

for sodium using 6 significant figures¶

Assignment 3 (20 pts).¶

Using mendeleev and scipy.constants, compute the energy density $\rho\,c_p\,\Delta T$ for iron where:

and express the result in Btu/in^3 using 6 significant figures¶

Assignment 4 (20 pts).¶

Using mendeleev and scipy.constants, compute the mole flow rate per minute of 9.45 L/min of dodecane when its mass density is 0.75 g/cc; use 4 significant digits.¶

Assignment 5 (20 pts).¶

In a mixture of ethanol and water, their mass concentrations are 0.45 g/cc and 0.83 g/cc, compute the molar density of the solution in mol/L. Using mendeleev and scipy.constants, present the result with 5 significant figures.¶

Name: `your name`¶

Using `mendeleev` and `scipy.constants`, calculate

Using `mendeleev` and `scipy.constants`, compute the values of:

Using `mendeleev` and `scipy.constants`, compute the energy density $\rho\,c_p\,\Delta T$ for iron where:

Using `mendeleev` and `scipy.constants`, compute the mole flow rate per minute of 9.45 L/min of dodecane when its mass density is 0.75 g/cc; use 4 significant digits.¶

In a mixture of ethanol and water, their mass concentrations are 0.45 g/cc and 0.83 g/cc, compute the molar density of the solution in mol/L. Using `mendeleev` and `scipy.constants`, present the result with 5 significant figures.¶