Chemistry Flash Cards

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Title: Chemistry
Description: mole
Number of Cards: 25
Save Count: 0
Author: laurielaforce11
Created: 2001-12-11
Tags: chemistry
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    • Question
    • Answer
    • Side 3
    • How many atoms are in each of the following.

      0.230 g Pb
    • 0.0066888 x 10 (23rd) atom

      6.69 x 10 (20th) atom
    • how many mole of each elemnt in 0.250 molK2 Cr04
    • 0.0250 mol K2Cro4x 2 molK
    • calculate the number of moles of each element in 1.25 mole glucose (C6H12O6)
    • 9.04x10 24th atom/oxygen
    • How many moles are in
      3.75 x10(24th) molecules CO2
    • .623x 10(1st) = 6.23
      molecules CO2
    • calculate the molar mass of acetic acid (CH3OOH)
    • C 2x 12 =24
      H 4 x 1 =4
      O 2 x 16= 32
      ____________
      60
    • How many atoms are in the following:
      45.6 g Si
    • 9.77 x 10 (23rd) atoms
    • what mass of sodium chloride contains 4.59 x 10 24 form. units
    • 446g
      4046 x 10 2nd g
    • what is the mass of 4035x10-2 moles of zinc Chloride (znCl2)
    • Zn=65.4
      Cl=35.5
      _______
      100.9
    • what mass of sodium chloride contains 4.59 x 10 24 form. units
    • 446g
      4046 x 10 2nd
    • Determine the # of moles present
    • 2206g AgNo3 x 1/170. = 0.13 mole

      Ag 1x 10=108
      N 1 x 14.0 = 14
      O 3x 16.o=48
      ____________
      170.g/mol
    • How many moles are in:
      5.75 x 10(24th)
    • 0.955 x 10(1) = 9.55 Mo Al
    • Determine the number of moles of Chloride ion in:
      2.50 mol ZnCl2
    • 3.01 x 10(24th) ion Cl
    • How many atoms in:
      4.56 x 10 -2 g sodium
    • 2.4608 x 10(25)
    • Determine the mass in grams of 125 mol of Neon?
    • 1.19 x 10(21st)atoms
    • Calculate the mass in grams of:

      2.56 x 10 -3 moles of iron
    • 143 x 10 -3g Fe

      *1.43 g Fe*
    • Calculate the number of moles of each element in 1.25 mole glucose(C6 H12 O6)
    • 9.04 x 10(24th)atoms/22H
    • find the molar mass (NH4)3 PO4
    • N=3x14=42
      H=12x1=12
      P=1x31=31
      O=4x16=64
      _________
      149g/mole
    • what is the mass of 3025 mole HeSo4
    • H 2x 1.01
      S 1x32.1 = 32.1
      O 4x16.o= 64.0
      ______________
      98.12


      318.g/HeSO4
    • Determine the mass in grams of 125 mol of neon.
    • 2525g Ne
      __________

      1 mole Ne

      * 2.53 x 10 (3rd) g Ne *
    • find the molar mass of
      CaCl 2
    • 110.984

      Ca=1x40.078=4.078
      Cl=2x35.453=70.906
    • What is the mass in grams?
    • 6.69 g pb
    • determine the molar mass of Silver Nitrate.
    • AgNo3

      Ag 1x108=108
      N 1x14=14
      O 3x16=48
      _________
      170g/mole AgNO3
    • How many moles of titanium are contained in 71.4 g
    • 1.49 mol Ti
    • determine the molar mass of Silver Nitrate.
    • AgNo3

      Ag 1x108=108
      N 1x14=14
      O 3x16=48
      _________
      170g/mole AgNO3
    • how many mole of each elemnt in 0.250 molK2 Cr04
    • 0.0250 mol K2Cro4x 2/1 mol K