How do you find the molarity of Na2CO3?

The molecular weight of Na2CO3 is 105.9888 g/mol (assuming the anhydrous form). So, the number of moles is 0.1369 g / 105.9888 g/mol = 0.00129. Since Na2CO3 can neutralize two moles of acid, the equivalent number of moles of base is 2*0.00129=0.00258.

How do you find the hydrated sodium carbonate?

Determine the formula of hydrated Sodium Carbonate Na2CO3. x H2O is the formula for hydrated Sodium Carbonate, where x represents the number of water molecules present in the crystals.

What is the MR of hydrated sodium carbonate?

The molar mass of hydrated sodium carbonate is 268g.

What is the molarity of a 1n sodium carbonate Na2CO3 solution?

Molarity of Na2CO3 = n(Na2CO3) / V = (0.1 mol) / (0.25 L) = 0.4 M.

How to prepare hydrated sodium carbonate?

Firstly a standard solution of hydrated Sodium Carbonate is required. Rinse volumetric flask (100 cm3) and funnel with distilled water. Approximately weigh 9.800g hydrated Sodium Carbonate crystals into small tub and replace lid. Using accurate scales, find mass of crystals and tub and lid, to three decimal places.

How do you measure the mass of a solution of sodium carbonate?

For 250 cm 3 of 0.1 M sodium carbonate. solution, the mass required is: 106 x 0.1 x 250 / 1000 = 2.65 g. Procedure. Using a balance, measure accurately 2.65 g of pure anhydrous. sodium carbonate on a clock glass.

How many grams of sodium carbonate should be in a mole?

Think of mass balance. Given the fact that you have determined the moles of sodium carbonate. Determine the grams of sodium carbonate. It should be less than 3.5 g. Where is the rest of the mass coming from?

What is the mass of hydrated sodium carbonate required for titration?

Therefore the mass of hydrated Sodium Carbonate required for the titration will be: 0.5M x 18gmol-1 = 98g 98g x (100cm3 / 1000cm3) = 9.8g. Therefore 9.8g Na2CO3.xH2O will produce a standard solution of 0.5M, when added to 100cm3distilled water. When pH is below 8.2, phenolphthalein indicator is colourless.