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What is the mass of 1.2x1024 molecules of NaCL?
The molecular mass of NaCl (as formula unit) is 58,44 g.
Are 50 grams of NaCl and 50 grams of MgCl2 the same amount?
No, there will be more molecules in the 50 grams of NaCl, because its molacular weight is lower. NaCl has a molaculair mass of 58.44 g/mol and MgCl2 has a molcular mass of 95.21 g/mol. 50 g / 58.44 g/mol = 0.86 mol NaCl 50 g / 95.21 g/mol = 0.53 mol MgCl2 The avogadro contstant states that 1 mole equals 6.02214179*1023 molecules. So you have 0.86 * 6.022*1023 = 5.18*1023 molecules of NaCl and 0.53 * 6.022*1023 = 3.19*1023 molecules of MgCl2.
How many atoms in 26 gr of sodium chloride?
We just use stoichiometry. The molecular formula for sodium chloride is NaCl. First we must find the molar mass of NaCl, using the molar masses of each element in the compound. So, 23 g/mol of Na + 36 g/mol of Cl = 58 g/mol of NaCl. Next, we take the amount of grams you have (26 grams) and divide it by the molar mass of NaCl to find the number of moles in your sample. 26 g NaCl / 58 g/mol of NaCl = .45 mol NaCl. Finally, we convert that to the number of NaCl molecules in a mole by multiplying .45 moles by 6.02x1023. This equals 2.7x1023 molecules. Because, technically, NaCl is made up of 2 atoms per molecule, you can multiply that by 2, giving 5.7x1023 atoms.
What is the number of moles in 42 g of NaCl?
To find the number of moles in 42 g of NaCl, divide the given mass by the molar mass of NaCl. The molar mass of NaCl is approximately 58.5 g/mol (sodium's atomic weight is 23 and chlorine's is 35.5). So, 42 g / 58.5 g/mol ≈ 0.72 moles of NaCl.
How many Na ions are in 4.2 g of NaCl?
To determine the number of Na ions in 4.2 g of NaCl, we need to first calculate the amount of NaCl present. The molar mass of NaCl is 58.44 g/mol. This means that in 4.2 g of NaCl, there are 4.2/58.44 = 0.072 mol of NaCl. Since NaCl dissociates into 1 Na+ ion and 1 Cl- ion, there are 0.072 mol of Na+ ions in 4.2 g of NaCl. To find the number of Na+ ions, you would then multiply the number of moles by Avogadro's number (6.022 x 10^23).
How many molecules are there in 450 grams of NaSO4?
To find the number of molecules in 450 grams of NaSO4, we first need to calculate the number of moles using the molar mass of NaSO4 (142.04 g/mol). Then, we can use Avogadro's number (6.022 x 10^23 molecules/mol) to find the number of molecules in the calculated moles.
If crystal salt has a mass of 0.12 g how many NaCl formula units does it have?
1.24 x 10 (18th) molecules .12mg x 1g/1000mg x 1mol/58.443g (molar mass of NaCl) x 6.022 x 10(23rd) molecules/1mol =1.236 x 10 918) molecules :) hope this helps! -forensics major currenly!!
How many moles are in 13 g of NaCl?
13(g) / 58.5(g/mol) = 0.22 mol NaCl
How many moles of NaCl are in 737 g of NaCl?
To find the number of moles in 737g of NaCl, first calculate the molar mass of NaCl, which is 58.44 g/mol. Then divide the given mass (737g) by the molar mass to get the number of moles. Number of moles = 737g / 58.44 g/mol ≈ 12.61 moles of NaCl.
How many moles of NaCl are there in crystal of halite that weight is 5.88 g?
To determine the number of moles of NaCl in a crystal of halite (NaCl), you first need to find the molar mass of NaCl, which is approximately 58.44 g/mol. Divide the given mass of 5.88 g by the molar mass to find the number of moles. So, 5.88 g / 58.44 g/mol = 0.1 moles of NaCl.
How many moles are present in 234g of NaCl?
To find the number of moles in 234g of NaCl, divide the given mass by the molar mass of NaCl. The molar mass of NaCl is 58.44 g/mol (sodium = 22.99 g/mol, chlorine = 35.45 g/mol). So, 234g ÷ 58.44 g/mol = 4 moles of NaCl.
How many moles would there be in 20.0 grams of sodium chloride?
To find the number of moles in 20.0 grams of sodium chloride (NaCl), divide the given mass by the molar mass of NaCl. The molar mass of NaCl is 58.44 g/mol. Number of moles = 20.0 g / 58.44 g/mol = 0.342 moles of NaCl.
