28 for N2
14 for N
that is 14 times ?
monoatomic, diatomic, triatomic etc
Normal saline is 0.9% weight/volume sodium chloride to water. This is 9 grams per litre. NaCl has a molecular weight of 58.5, sodium (Na) has a weight of 23, which is 39.3% of the molecular weight. So sodium is 39.3% of the weight. 1 litre of saline has 9 grams, 250ml is a quarter of a litre, so has 9/4 grams = 2.25 grams. 39.3% of 2.25 g is 0.884 grams of sodium.
Phenol. C6H5OH 6 carbon atoms = 72.06 grams 6 hydrogen atoms = 6.048 grams 1 oxygen atom = 16.0 grams ===========================add = 94.108 grams per mole ---------------------------------
The weight in grams of a liter of a substance will vary depending on the density of the substance. To convert between volume (liters) and weight (grams), you need to know the density of the substance in question. The formula to calculate this is: mass (in grams) = volume (in liters) x density (in grams per liter).
The molecular weight (or, more appropriately, the molar mass) is defined by # of grams per # of moles. MW = g / mol For example: if you have 4 grams of substance and you know the substance to be 2 moles (say, for example, the balanced chemical equation), then your MW would be 2.
The weight is equal to density multiplied by volume, so to find the weight in grams for Cinnamon oil we would have to know the density which is essentailly the weight per unit volume. Weight = Volume * Density Hope it helps --- Shailesh
To convert molecular weight from daltons to grams, you use the molar mass constant, which is 1 g/mol = 1 dalton. Therefore, the molecular weight in daltons is equivalent to the molar mass in grams per mole. Simply express the molecular weight in grams per mole.
The molecular weight of a compound is measured in daltons, which is a unit of mass used for atoms and molecules. To convert daltons to grams per mole (g/mol), you can use the conversion factor 1 dalton 1 g/mol. This means that the molecular weight in daltons is equal to the molecular weight in grams per mole.
The molecular weight of a compound is the sum of the atomic weights of all the atoms in the molecule, measured in daltons. To convert this to grams per mole (g/mol), you can use the conversion factor 1 dalton 1 g/mol. This means that the molecular weight in daltons is equal to the molecular weight in grams per mole.
The only difference is the name of the unit; the numerical values are the same. However, the value in amu is the mass of a single molecule, while the molecular weight in grams is the mass of Avogadro's number of molecules. The mass of Avogadro's number of molecules is called a Gram-mole. The molecular weight of , say, Hydrogen H2 is 2 amu. A gram mole of this would be 2 grams. The molecular weight in grams is the weight of this molecule in real grams and is an extremely small value.
You would need to dissolve 14.62 grams of NaCl in water to make a 0.5M NaCl solution with a final volume of 500 ml. This calculation is based on the formula: moles = Molarity x Volume (in liters), and then converting moles to grams using the molecular weight of NaCl.
gram molecular weight = weight of one mole of the substance in grams for example 1 mole of water weighs 1 + 1 + 16 = 18 grams so gram molecularweight of water is 18g
The molecular weight of iron (Fe) is approximately 55.85 grams per mole.
let we have to calculate wait of 20mM tris-HCL for a solution of 1liter,then formula for molarity is Molarity= weight (in grams)/molecular weight X volume in liter hence 20/1000=wait/121.14X1 wait = 20 X 121.14/1000 (cross multiplication) wait = 2.42gm
The molecular weight of NaCl is 58.44. So you would need to add 116.88 g of NaCl into 1 L of water. Molarity X Required volume X Molecular weight 2 M/L X 1 L X 58.44 =116.88 g/L
(158 g = 1 mole) --- molar mass of potassium permanganate. You also need to specify the volume to be made. For 1 liter just add 15.8 g in a volumetric flask to make 1000 ml (1 liter) of solution.
They use a number called a mole. This many atoms of an element equals its atomic weight in the periodic table. Molecular weight is the sum of atomic weight. Silver has an atomic weight of 108 grams/mole and Chlorine is 35.4 grams/mole. This makes AgCl 108 + 35.4 = 143.4 grams/mole. The % Chlorine is the atomic weight of Chlorine divided by the molecular weight of AgCl. 1 mole of AgCl would contain 35.4 grams / 143.4 grams = 25% Chlorine by weight. 1.22 grams AgCl would contain (0.25)*(1.22) = 0.30 grams of Cl. To find the Chlorine in the unknown, divide the weight of Chlorine from the experiment by the initial weight of the unknown. 0.30 grams / 0.63 grams = 0.48 = 48% Cl by weight.
Normal saline is 0.9% weight/volume sodium chloride to water. This is 9 grams per litre. NaCl has a molecular weight of 58.5, sodium (Na) has a weight of 23, which is 39.3% of the molecular weight. So sodium is 39.3% of the weight. 1 litre of saline has 9 grams, 250ml is a quarter of a litre, so has 9/4 grams = 2.25 grams. 39.3% of 2.25 g is 0.884 grams of sodium.