Question

Complete these statements, supplying the proper quantity Report your answers with 4 significant digits. For numbers in scena natation, use the following notation for 1000, enter 1.000E+3. A mole of O atoms contains The number of significant digits is set to 4, the tolerance is +/-0.1% A mole of O2 molecules contains molecules. The number of significant digits is set to ; the tolerance is +/-0.196 A mole of O molecules contains The number of significant digits is set to as the colorance is +/-0.196 grams Amole of O atoms has a mass of The number of significant dosis set to d; the tolerance +/-0.196 A mole of a molecules has a mass of The number of significant digits is set to the tolerance is +/-0.156

Answer 1

WHEN the is 1 mole contain NA Number of molecules where NA= Avogadro Number NA = 61023 xloro A mole of (0) oxygen atom & contain NA atoms means 61023x102 atoms. i) In a mole of og molecule contain - 6.023X1023 male eules I ) In A mole of Og molecules contains I male og = 6023 x 108 x 2 oxygen = 109.046X1023 orygen atoms (iv) A mole of o atoms I Given. (h) mole = mass (m) LO=167 - moler mass (M) meleror Given; h=1 atomic mass is 16. 1 = MO mats (M) = 16 goam] (W) anno In a case of; 1 mole of Og molecules CamScanner = 1 mole atoms THAT

(mole) = m (mass) - m (molar mass) To=16 atomic mass) Og moler 1 = m 32 2 mass of - 2x16 = 32 u Im = 32 gram CS Scanned with CamScanner