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25 Cards in this Set
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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 4035x102 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
