Divide the Molar Mass of C and Cl4 by 56 to get your awnswer!
The answer is 0,364 moles.
Depending upon how precise your masses are, KOH has a molar mass of about 56, so your answer is about 34/56.
To find the number of atoms we need to find number of moles of Fe in 312.0 grams. Molar weight of Fe = 56 Number of moles of Fe in 312 grams = 312/56 =5.571 moles. 1 mole of Fe has Avogadro number of atoms. So 5.571 moles of Fe has atoms = 5.571 * Avogadro number. Avogadro number = 6.022 * 10^23 So total atoms = 5.571 * 6.022 * 10^23 = 33.548 * 10^23 * means multiply, ^ means raised to power.
The Answer is.56 moles OR 0.56 moles
Barium (Ba) has an At. No. of 56, and an At. Wt. of 137.36.(7.8 gm moles) X (137.36 gm/gm mole) = 1071.408 gm.
The answer is 0,364 moles.
moles = weight in grams / molecular weight = 56 / 28 = 2 moles
Mass in grams = no of moles x molecular mass. So, mass in grams = 5.2x 56 = 291.2g
The molecular mass of selenium is 78.96g/mol. You need to convert micrograms to grams. i.e. 56/1,000,000 is 0.000056 grams. 0.000056/78.96 is 0.00000071 moles.
Depending upon how precise your masses are, KOH has a molar mass of about 56, so your answer is about 34/56.
56 moles × (6.02 × 1023) = 3.37 × 1024 atoms
56 hectograms = 5600 grams
To find the number of atoms we need to find number of moles of Fe in 312.0 grams. Molar weight of Fe = 56 Number of moles of Fe in 312 grams = 312/56 =5.571 moles. 1 mole of Fe has Avogadro number of atoms. So 5.571 moles of Fe has atoms = 5.571 * Avogadro number. Avogadro number = 6.022 * 10^23 So total atoms = 5.571 * 6.022 * 10^23 = 33.548 * 10^23 * means multiply, ^ means raised to power.
The Answer is.56 moles OR 0.56 moles
1 kilogram = 1,000 grams 2 kilograms = 2,000 grams 56 kilograms = 56,000 grams
Barium (Ba) has an At. No. of 56, and an At. Wt. of 137.36.(7.8 gm moles) X (137.36 gm/gm mole) = 1071.408 gm.
56 grams 448 grams in a pound / 8 = 56 grams