Magnesium chloride hexahydrate has a density of 1.69 g/cm3. What is the volume in liters of 1.5 x10^2 pounds of MgCl2*6H2O?
yes D=m/v into V=m/d, Do I need to find the formula mass of Magnesium chloride hexahydrate and change pounds into liters? Divide the found numbers and I found my volume?
Wouldn't it have been better to show your work instead of leading us around to the back of the barn?
No you don't need the formula mas of MgCl2.6H2O.
If you can change pounds into liters you're a better chemist than I am. Pounds is a weight. L is a volume.
Change pounds to grams.
150 pounds x (453.59 g/pound) = ?
Then ?/1.69 = mL and convert to L.
I should point out here that no matter what answer you get it probably isn't right BECAUSE MgCl2.6H2O is a solid and the volume will depend upon how big the individual crystals are and how much space is between the solid particles. The size of the particles actually determines the volume of solids UNLESS it is a one piece solid.
Yes, you are on the right track! To calculate the volume of 1.5 x 10^2 pounds of Magnesium chloride hexahydrate (MgCl2*6H2O) in liters, you need to follow these steps:
1. Convert the given weight from pounds to grams:
1 pound = 453.592 grams
Therefore, 1.5 x 10^2 pounds = 1.5 x 10^2 * 453.592 grams.
2. Calculate the molar mass (formula mass) of Magnesium chloride hexahydrate (MgCl2*6H2O):
MgCl2 has a molar mass of 95.211 g/mol
H2O has a molar mass of 18.015 g/mol
To find the formula mass of MgCl2*6H2O, multiply the molar mass of MgCl2 by 1, and the molar mass of H2O by 6, and then add them together.
3. Use the density formula (V = m/d) to find the volume:
Divide the weight in grams (from step 1) by the density of Magnesium chloride hexahydrate (1.69 g/cm^3).
4. Finally, convert the volume from cubic centimeters (cm^3) to liters (L) by dividing by 1000 (since there are 1000 cm^3 in 1 L).
So, the steps are:
1. Convert pounds to grams.
2. Calculate the molar mass of MgCl2*6H2O.
3. Use the density formula to find the volume in cm^3.
4. Convert cm^3 to liters.
I hope this helps!
Yes, you are on the right track. To find the volume in liters of 1.5 x 10^2 pounds of MgCl2*6H2O, you need to follow these steps:
Step 1: Find the molar mass of MgCl2*6H2O.
To calculate the molar mass of MgCl2*6H2O, you need to know the atomic masses of each element. The atomic masses are as follows:
- The atomic mass of Mg (Magnesium) is approximately 24.3 g/mol.
- The atomic mass of Cl (Chlorine) is approximately 35.5 g/mol.
- The atomic mass of H (Hydrogen) is approximately 1.0 g/mol.
- The atomic mass of O (Oxygen) is approximately 16.0 g/mol.
Now, count the number of each element in a molecule of MgCl2*6H2O:
- Mg: 1
- Cl: 2
- H: 12 (since there are 6 water molecules, each containing 2 hydrogen atoms)
- O: 6 (since there are 6 water molecules)
Now, calculate the molar mass:
Mg: 24.3 g/mol
Cl: 35.5 g/mol (x 2)
H: 1.0 g/mol (x 12)
O: 16.0 g/mol (x 6)
Add up all the masses:
Mg: 24.3 g/mol (for 1 atom)
Cl: 35.5 g/mol (for 2 atoms)
H: 1.0 g/mol (for 12 atoms)
O: 16.0 g/mol (for 6 atoms)
Multiply the masses by the corresponding number of atoms and sum them up:
Mg: 24.3 g/mol
Cl: 35.5 g/mol x 2 = 71.0 g/mol
H: 1.0 g/mol x 12 = 12.0 g/mol
O: 16.0 g/mol x 6 = 96.0 g/mol
Sum of masses: 24.3 g/mol + 71.0 g/mol + 12.0 g/mol + 96.0 g/mol = 203.3 g/mol
Therefore, the molar mass of MgCl2*6H2O is 203.3 g/mol.
Step 2: Convert pounds to grams.
Given that the mass is 1.5 x 10^2 pounds, you need to convert it to grams to be consistent with the units in the molar mass calculation.
1 pound is equal to approximately 453.6 grams. So, multiply 1.5 x 10^2 pounds by 453.6 to get the mass in grams.
Step 3: Calculate the volume in liters.
Now that you have the mass in grams and the molar mass of MgCl2*6H2O, you can use the formula V = m/d, where V represents volume, m represents mass, and d represents density.
Given:
Density (d) = 1.69 g/cm^3
Mass (m) = the mass you obtained in grams in Step 2
Volume (V) = ?
Rearrange the formula to solve for V:
V = m / d
Now, divide the mass you obtained in grams by the density in g/cm^3 to find the volume in cm^3.
Step 4: Convert cm^3 to liters.
Since 1 L is equal to 1000 cm^3, divide the volume in cm^3 by 1000 to get the volume in liters.
That's it! By following these steps, you should be able to calculate the volume in liters of 1.5 x 10^2 pounds of MgCl2*6H2O.