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The number of moles is equal to the mass divided by the molar mass. In mathematical form, it is:
Moles = Mass of Mg / Molar Mass of Mg
Moles = 109.4 / 24.3
Moles = 4.501 (rounded to three decimal points)
Always keep a Periodic Table handy, molar masses are quite important.
Wiki User
∙ 6y ago
Wiki User
∙ 13y agoTo find moles when given grams, divide the Atomic Mass of the element by the weight in grams. The atomic mass of Magnesium is 24.305, so you would divide 24.305 by 109.4, which equals .222166, or .2 when rounded according to significant figures.
Wiki User
∙ 11y agoAbout 4.5 moles.
Wiki User
∙ 13y ago4.50
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What is equivalent to 45mg of sodium?
45 mg contains approximately 1.956 moles of atomic sodium.
How many moles of sodium borohydride are used in 100 mg?
.0104 mol
How many moles of magnesium are 12.04 x 10 23 atoms?
1 mole Mg = 6.022 x 1023 atoms Mg 12.04 x 1023 atoms Mg x 1mol Mg/6.022 x 1023 atoms Mg = 1.999 moles Mg
How many moles of oxygen gas O2 needed to react with 4.00 mol of Mg?
Do you mean this reaction? 2Mg + O2 -> 2MgO 4.11 moles Mg (1 mole O2/2 mole Mg) = 2.06 moles oxygen gas consumed --------------------------------------------------
If 0.0276 g of Mg reacts with HCl how many moles of gas produced?
0,0011 moles of hydrogen are obtained.
How many moles of Mg contain 8.231023 atoms Mg?
8,23.1023 atoms Mg is equivalent to 1,366 moles.
How many moles are in 225.8 g of Mg?
There are 18.9 moles in 225.8 mg. This is a math problem.
How many moles is 1.346g of Mg?
1.346 grams Mg (1 mole Mg/24.31 grams) = 0.05537 moles magnesium
How many moles of Mg are present in 14.95 g?
The answer is 0,615 moles.
What is equivalent to 45mg of sodium?
45 mg contains approximately 1.956 moles of atomic sodium.
How many moles of atoms are there in 8.45 1023 atoms Mg?
This is equivalent to 1,4 moles.
How many moles are in 1.2 mg of oxygen?
The molar mass of oxygen is 32 g.1,2 mg oxygen is equal to 0,0000375 moles.
How many moles are in 14.84 g Mg?
14,84 g magnesium are equivalent to 0,61 moles.
How many moles are in 29.4mg of BrI?
29,4 mg of BrI is the equivalent of 0,000 143 moles.
How many moles of sodium borohydride are used in 100 mg?
.0104 mol
What is the molarity of a solution of lii which contains 26800 mg of solute in a total volume of 0.282l?
0.0296 M solution means 1000 ml contains 0.0296 moles of LiI By applying unitary method we get, no. of moles of LiI in 258.6ml =.00765456 moles
How many moles are found in (4.58x101) E23 atoms Mg?
6,02214129.10ex.23---------------1 mol458.10ex.23---------------------------xx = 76,o5 moles Mg
