mass of element = 311.1269 amu
what is mass of 1.36 moles of these atoms in g
Hint: (1 mol = 6.022 x 1023 atoms) and (1 amu = 1.6606 x 10-24 g)
HELP!
mass=number of moles* mass element/mole
You are given the mass element in amu, multilply that by grams/amu (1.66E-24g/amu * 6.022E23amu/mole)
can someone help me work it out please?
To find the mass of 1.36 moles of these atoms in grams, you can use the following steps:
Step 1: Determine the molar mass of the element. The molar mass is the mass of one mole of the element and is equal to the atomic mass of the element in amu. In this case, the mass of the element is given as 311.1269 amu.
Step 2: Convert the molar mass from amu to grams. Since 1 amu is equal to 1.6606 x 10^-24 grams, you can multiply the molar mass of the element in amu by this conversion factor to get the mass in grams.
Step 3: Calculate the mass of 1.36 moles of the element by multiplying the molar mass in grams by the number of moles (1.36).
Let's go through the calculations:
Step 1: The molar mass of the element is 311.1269 amu.
Step 2: Convert the molar mass from amu to grams:
311.1269 amu × (1.6606 x 10^-24 g / amu) = 5.161 x 10^-22 g.
Step 3: Calculate the mass of 1.36 moles of the element:
5.161 x 10^-22 g × 1.36 mol = 7.022 x 10^-22 g.
Therefore, the mass of 1.36 moles of the atoms of this element is 7.022 x 10^-22 grams.