Αποτελέσματα Αναζήτησης
Molar Mass Practice Worksheet. Find the molar masses of the following compounds: NaBr. PbSO4. Ca(OH)2. Na3PO4. (NH4)2CO3. C6H12O6. Fe3(PO4)2.
Molar Mass Problems. 1. Calculate the mass of 1.000 mole of CaCl2. 2. Calculate grams in 3.0000 moles of CO2. 3. Calculate number of moles in 32.0 g of CH4. 4. Determine mass in grams of 40.0 moles of Na2CO3.
Molar Mass Worksheet. Calculate the molar masses of the following chemicals: 1) Cl2. 8) UF6. 2) KOH. 9) SO2. 3) BeCl2. 10) H3PO4. 4) FeCl3. 11) (NH4)2SO4. 5) BF3. 12) CH3COOH. 6) CCl2F2. 7) Mg(OH)2. 13) Pb(NO3)2. 14) Ga2(SO3)3. Avogadro’s Number and the Mole. 1) How many moles of water does 6.02 x 1023 molecules represent?
MOLAR MASS WORKSHEET Calculate the molar mass. Show work for #1-5 1) Cl 2 2) KOH 3) FeCl 3 4) (NH 4) 2 SO 4 5) Prozac, C 17 H 18 F 3 NO, is a widely used antidepressant that inhibits the uptake of serotonin by the brain. Find its molar mass. For #6-14, do them in your calculator. You can show your work if you would like to. 6) SO 2 7) BF 3 8 ...
Mass –> Mole Conversions – using molar mass of each substance convert the following quantities. 72.0 g Ar 1.80 mol. 3.70 x 10–1 g B 3.43 x 10-2 mol. 187 g Al 6.93 mol. 333 g SnF2 2.13 mol. 7.21 x 10–2 g He 1.80 x 10-2. 27.4 g NO2 0.596 mol.
1. Mass of substance. Convert using the molar mass of the substance. 2. Amount of substance in moles. Use Avogadro's number for conversion. 3. Number of atoms, molecules, or formula units of substance. PROBLEMS INVOLVING ATOMS AND ELEMENTS. Sample Problem 1. A chemist has a jar containing 388.2 g of iron filings.
Molar mass tells us the mass of 1 mol of an atom or compound. In each case we simply calculate the sum of the masses of the atoms in the formula to determine the mass of a mole. These masses can be found on the periodic table. EXAMPLE: Calculate the molar mass of a mole of iodine, I2.
