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(7.6 g NaCl) (moles NaCl/58.44 g NaCl) (1 mole Na/1 mole NaCl) ( 22.99 g Na/mole Na) = 2.989 g Na or 3.0 g Na (significant figures)
Steps:
1. Change everything to moles: use molar mass/molecular of NaCl
2. Find the molar ratio: since there are 1 Na in every NaCl, then the ratio of NaCl to Na is 1:1
3. Change moles back to grams: use the molar mass/molecular weight of Na
4. Watch out for significant figures!
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How many sodium ions are in 25.75 grams of sodium chloride?
To calculate the number of sodium ions in 25.75 grams of sodium chloride, first find the molar mass of NaCl (58.44 g/mol). Divide the given mass by the molar mass to find the number of moles of NaCl (0.44 moles). Since each NaCl molecule contains one sodium ion, there are 0.44 moles of sodium ions in 25.75 grams of NaCl.
How many moles are in 72.0g of sodium cloride?
To find the number of moles in 72.0g of sodium chloride, you first need to calculate the molar mass of NaCl, which is 58.44 g/mol. Then divide the given mass by the molar mass: 72.0g / 58.44 g/mol ≈ 1.23 moles of NaCl.
How many moles are there in 42.5 grams of sodium chloride?
To find the number of moles in 42.5 grams of sodium chloride (NaCl), you first need to calculate the molar mass of NaCl, which is 58.44 g/mol. Then divide the given mass by the molar mass to get the number of moles. In this case, 42.5 grams divided by 58.44 g/mol is approximately 0.727 moles of sodium chloride.
How many grams of sodium chloride are in 3 x 10 to the 25 formula units of sodium chloride?
1 mole NaCl = 58.443g NaCl = 6.022 x 1023 formula units NaCl 3 x 1025 formula units NaCl x 1mol NaCl/6.022 x 1023 formula units NaCl x 58.443g NaCl/mol NaCl = 2911g NaCl = 3000g NaCl (rounded to 1 significant figure)
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.
How many sodium ions are in 25.75 grams of sodium chloride?
To calculate the number of sodium ions in 25.75 grams of sodium chloride, first find the molar mass of NaCl (58.44 g/mol). Divide the given mass by the molar mass to find the number of moles of NaCl (0.44 moles). Since each NaCl molecule contains one sodium ion, there are 0.44 moles of sodium ions in 25.75 grams of NaCl.
Calculate the grams of sodium in 7.6 grams of NaCl?
NaCl has a molar mass of 22,989 769 28 + 35,453 = 58,442 769 28 g Na has an atomic weight of 22,989 769 28 g. % Na = 22,989 769 28 ÷ 58,442 769 28 = 39,337 Mass of Na in 7,6 grams of NaCl = 0,39337 x 7,6 g = 2,99 g
How many grams of sodium are in 75grams of NaCl?
The percentage of sodium in NaCl is 39,666.So, 75 x 39,666/100= 29,75 g sodium in 75 g NaCl
How many moles are in 72.0g of sodium cloride?
To find the number of moles in 72.0g of sodium chloride, you first need to calculate the molar mass of NaCl, which is 58.44 g/mol. Then divide the given mass by the molar mass: 72.0g / 58.44 g/mol ≈ 1.23 moles of NaCl.
How many moles are there in 42.5 grams of sodium chloride?
To find the number of moles in 42.5 grams of sodium chloride (NaCl), you first need to calculate the molar mass of NaCl, which is 58.44 g/mol. Then divide the given mass by the molar mass to get the number of moles. In this case, 42.5 grams divided by 58.44 g/mol is approximately 0.727 moles of sodium chloride.
How many grams of sodium chloride are in 3 x 10 to the 25 formula units of sodium chloride?
1 mole NaCl = 58.443g NaCl = 6.022 x 1023 formula units NaCl 3 x 1025 formula units NaCl x 1mol NaCl/6.022 x 1023 formula units NaCl x 58.443g NaCl/mol NaCl = 2911g NaCl = 3000g NaCl (rounded to 1 significant figure)
How many grams of sodium are in and 5 grams of NaCl?
The answer is 1,98 g sodium.
How many grams of sodium are in 200ml of 0.45 percent NaCl?
NaCl has a molar mass of 22,989 769 28 + 35,453 = 58,442 769 28 g Na has an atomic weight of 22,989 769 28 g. % Na = 22,989 769 28 ÷ 58,442 769 28 = 39,337 200 mL of 0,45 % sodium chloride contain 0,9 g NaCl. Mass of Na in 0,9 grams of NaCl = 0,39337 x 0,9 g = 0,354 g
What is the density of sodium chloride (NaCl) in grams per milliliter?
The density of sodium chloride (NaCl) is 2.165 grams per milliliter.
How many moles are there in 20.67g sodium chloride?
To find the number of moles in 20.67g of sodium chloride, you need to first calculate the molar mass of NaCl (sodium chloride), which is approximately 58.44 g/mol. Then, divide the given mass by the molar mass to get the number of moles. In this case, 20.67g divided by 58.44 g/mol is approximately 0.354 moles of sodium chloride.
How many grams of NaCL are contained in 350mL of a 0.250M solution of sodium chloride?
To calculate the mass of NaCl in the solution, you need to first calculate the number of moles of NaCl present. You can use the formula: moles = concentration (M) x volume (L). Once you have the number of moles, you can convert it to grams using the molar mass of NaCl, which is 58.44 g/mol.
How may grams are in 1.946 moles of NaCl?
1.946 moles NaCl (58.44 grams/1 mole NaCl) = 113.7 grams sodium chloride ======================
