0
0.285 mol.
The solution to this problem can be found through what is called dimensional analysis.
The first thing that needs to be identified is the atomic weight (or molar mass) of SiO2. This can be found in any chemistry text book (particularly the Periodic Table) or even a quick online search (I like to use wikipedia). While it is possible to find the specific atomic weight of the molecule SiO2, I find it simpler just to look up the atomic weights of the individual atoms in the molecule. Starting with silicon (Si), the atomic weight is 28.0855 g/mol. Oxygen (O) has the atomic weight of 15.9994 g/mol. Now, all one needs to do is add up the atomic weights of all the individual atoms to find the total atomic weight of the molecule. For SiO2, this would be 28.0855 g/mol + 15.9994 g/mol + 15.9994 g/mol (since there are 2 oxygen atoms). Notice also that I included the units. In dimensional analysis, it is very important to keep track of units.
This gives you a total of 60.0843 g/mol. Now we have identified the molar mass of the molecule SiO2. The units of the molar mass is g/mol, and we want to find how many moles (mol) are found in a certain mass (g) of SiO2. Now the dimensional analysis really comes into play.
Start with the values that are given in the question: 17.1 g SiO2. We can now convert this number to mols using the molar mass we identified previously: 60.0843 g/mol SiO2. Put into equation form:
17.1g SiO2 | 1 mol SiO2 _ or (17.1 g SiO2 x 1 mol SiO2)/60.0843 g SiO2
¯¯¯¯¯¯¯¯¯|60.0843 g SiO2
With this arrangement, we can see that the units of "g SiO2" will cancel out, and you will be left with "mol SiO2", which is exactly what you are trying to find! And the answer is: 0.285 mol.
What else can I help you with?
How many grams in one mole of zirconium?
The molar mass of zirconium is approximately 91.22 grams per mole.
What is the mass in gram of 0.500 mole of uranium?
The mass of o,5 mole of uranium is 119,014455 g.
How many grams in argon?
The molar mass of argon is approximately 40 g/mol. Therefore, one mole of argon weighs around 40 grams.
How many grams are in 12 moles of CO2?
To find the grams in 12 moles of CO2, you should first calculate the molar mass of CO2, which is approximately 44 grams/mol. Then, multiply the molar mass by the number of moles: 44 g/mol x 12 mol = 528 grams of CO2.
How many grams in 1 Hg?
grams of mercury (Hg) 1 mole x 1 mole Avogadro's number (6.022 x 1023) of atoms 200.6 grams Hg 1 mole 200.6 grams Hg = x = ≈ 3.3311192-23 atoms Hg 1 mole 6.022 x 1023 atoms 6.022 x 1023 atoms
How many oxygen atoms are in 2.60g of quartz?
This is a complex tetrahedral formula, but SiO2 is the accepted formula for our purposes. I assume you mean 1.40 grams quartz. 1.40 grams SiO2 (1 mole SiO2/60.09 grams)(2 mole O/1 mole SiO2)(6.022 X 10^23/1 mole O) = 2.81 X 10^22 atoms of oxygen ( may need the tetrahedral formulation. In this form the O2 is shared and the form is SiO4. So, same ratios, different numbers. SiO2 is standard though )
How many oxygen atoms are in 3.30 of quartz?
Quartz is represented by the chemical formula SiO2, which means each molecule of quartz contains one oxygen atom. To calculate the number of oxygen atoms in 3.30 g of quartz, you would need to convert grams to moles of SiO2 (60.08 g/mol) and then use the mole ratio of SiO2 to oxygen to find the number of oxygen atoms. The total number of oxygen atoms in 3.30 g of quartz can be calculated as follows: 3.30 g SiO2 * (1 mole SiO2 / 60.08 g SiO2) * (2 moles O / 1 mole SiO2) * (6.022 x 10^23 atoms / 1 mole O).
How many ATOMS of silicon are present in 3.10 moles of silicon dioxide?
3.10 moles SiO2 (1 mole Si/1 mole SiO2)(6.022 X 1023/1 mole Si) = 1.87 X 1024 atoms of silicon =====================
How many grams are in a mole of he?
4.003 grams
How many grams are in one mole of C5H12?
The molar mass of C5H12 is 72 grams/mole.
How many oxygen atoms are in 3.80 g of quartz?
Ans:Quartz is SiO2. It has a formula weight of 60.1 g/mol. 3 grams of SiO2 is 0.05 moles.Each mole of SiO2 has 0.1 moles of oxygen since there are 2 oxygen atoms per formula unit of SiO2.(1 mole of anything is 6.02x1023 of anything.)0.1 mol oxygen atoms x 6.02x1023 oxygen atoms / mol oxygen atoms= 6.02 x 1022 oxygen atoms.Number of O atoms =6.02×1022
How many grams of pseudoephedrine are in one mole?
The answer is 165,23 grams.
A lead glass is prepared by melting 20.0 g of silica sio2 and 80.0 g of leadii oxide pbo what is the mole fraction of sio2 in the glass?
48.15 Mole% Silica and 51.86 Mole% Lead Oxide. 20% Silica - Molecular weight 60.1 = 60.1*0.2 => 0.3332779 80% Lead Oxide - Mol Wt 223.2 = 223.2*80 => 0.358 Sum of mole wt -- 0.6912 Mole % Silica = 0.332/0.6912 = 48.14 Mole% -- Balance Lead Oxie...
How many molecule in 25 grams of NH3?
25 grams / (17 grams/mole) x 6.022x1023 molecules/mole = 8.9x1023 molecules
How many grams are in 1 mole of salt?
The molar mass of salt (NaCl) is 58.44 grams per mole. Therefore, there are 58.44 grams in 1 mole of salt.
How many pounds are in a pound-mole when converting from grams per mole to pounds per pound-mole?
When converting from grams per mole to pounds per pound-mole, there are approximately 453.6 pounds in a pound-mole.
How many grams are in one mole of boron?
1.00*10-7 moles of boron is how many grams is this
