how many grams of chloroethylene C2H3Cl contain 5.47 x 10^26 molecules?
number molecules=number moles*avagNumber
= mass/molmass * avagnumber
mass=number molecules * molmass/avagNumber
To determine the number of grams of chloroethylene (C2H3Cl) that contain 5.47 x 10^26 molecules, you need to follow these steps:
Step 1: Find the molar mass of chloroethylene (C2H3Cl).
The atomic masses of each element in chloroethylene are:
- Carbon (C): 12.01 g/mol
- Hydrogen (H): 1.01 g/mol
- Chlorine (Cl): 35.45 g/mol
To find the molar mass of chloroethylene (C2H3Cl), add up the atomic masses of its constituent atoms:
Molar mass of chloroethylene = (2 * atomic mass of Carbon) + (3 * atomic mass of Hydrogen) + atomic mass of Chlorine
Molar mass of chloroethylene = (2 * 12.01 g/mol) + (3 * 1.01 g/mol) + 35.45 g/mol
Molar mass of chloroethylene = 62.51 g/mol
Step 2: Convert the number of molecules of chloroethylene to moles.
Use Avogadro's number, which states that 1 mole of any substance contains 6.022 x 10^23 molecules.
Number of moles = (number of molecules) / Avogadro's number
Number of moles = (5.47 x 10^26 molecules) / (6.022 x 10^23 molecules/mol)
Number of moles = 90.75 mol
Step 3: Convert moles to grams.
To convert moles of chloroethylene to grams, multiply the number of moles by the molar mass of chloroethylene.
Mass = (number of moles) * (molar mass)
Mass = 90.75 mol * 62.51 g/mol
Mass ≈ 5671.63 g
Therefore, approximately 5671.63 grams of chloroethylene (C2H3Cl) contain 5.47 x 10^26 molecules.
To determine the number of grams of chloroethylene (C2H3Cl) that contain a given number of molecules, you need to follow these steps:
Step 1: Find the molar mass of chloroethylene (C2H3Cl).
The molar mass is the sum of the atomic masses of each element in the compound. To find the molar mass of chloroethylene, you can refer to the periodic table.
Carbon (C) atomic mass = 12.01 g/mol
Hydrogen (H) atomic mass = 1.01 g/mol
Chlorine (Cl) atomic mass = 35.45 g/mol
Molar mass of C2H3Cl = (2 × C) + (3 × H) + Cl = (2 × 12.01) + (3 × 1.01) + 35.45 g/mol
Step 2: Calculate the number of moles of chloroethylene.
To convert the given number of molecules into moles, use Avogadro's number, which is approximately 6.022 × 10^23 molecules per mole.
Number of moles = Number of molecules / Avogadro's number
= (5.47 × 10^26) / (6.022 × 10^23) mol
Step 3: Convert moles to grams.
Use the molar mass of chloroethylene calculated in Step 1 to convert moles to grams.
Mass (grams) = Number of moles × Molar mass of C2H3Cl
Now you can calculate the mass of chloroethylene containing 5.47 × 10^26 molecules using the formula above.