how much chlorine, Cl 2, do you need to order to react completely with 500 kg of platinum, Pt, to make cisplatin, PtCl 2(NH 3) 2?
To calculate the amount of chlorine (Cl2) needed to react completely with platinum (Pt) to make cisplatin (PtCl2(NH3)2), we need to determine the stoichiometry of the reaction.
The balanced chemical equation for the reaction can be written as follows:
1 Pt + 2 Cl2 + 4 NH3 -> PtCl2(NH3)2
From the equation, we can see that 2 moles of Cl2 are required to react with 1 mole of Pt to form 1 mole of cisplatin.
Now, we need to convert the mass of platinum (500 kg) to moles. To do this, we need to know the molar mass of platinum.
The molar mass of platinum (Pt) is approximately 195.08 g/mol.
First, we convert the mass of platinum to grams:
500 kg = 500,000 grams
Next, we calculate the number of moles of platinum:
moles of Pt = mass of Pt / molar mass of Pt
moles of Pt = 500,000 g / 195.08 g/mol
Now, let's calculate the moles of Cl2 required for the reaction:
moles of Cl2 = (moles of Pt) * (2 moles of Cl2 / 1 mole of Pt)
Finally, let's convert the moles of Cl2 to grams:
mass of Cl2 = (moles of Cl2) * (molar mass of Cl2)
Note: The molar mass of chlorine (Cl2) is approximately 70.90 g/mol.
Therefore, by following these calculations, you can determine the amount of chlorine (Cl2) you need to order to react completely with 500 kg of platinum (Pt) to make cisplatin (PtCl2(NH3)2).
Convert 500 kg Pt to mols. mols = grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols Pt to mols Cl2.
Convert mols Cl2 to grams. g = mols x molar mass.