84.01 g
To make a 7.5% solution of sodium carbonate in water, add 7.5 grams of sodium carbonate to 100 mL of water and stir until the sodium carbonate is completely dissolved. This will give you a 7.5% (w/v) solution of sodium carbonate.
Since quantity is not mentioned, we take on mole of Sodium Carbonate. One mole of Sodium Carbonate=106g One mole of Na2CO3 has 3 moles of oxygen which are equal to 48g Mass% of oxygen = 48/106 * 100 =45.28%
The solubility of sodium carbonate in water is around 22 g/100 mL of water at room temperature (20°C).
The molecular formula of ammonium carbonate is (NH4)2CO3. The molar mass of nitrogen in ammonium carbonate is 28.02 g/mol. The molar mass of ammonium carbonate is 96.09 g/mol. To calculate the mass percent of nitrogen in ammonium carbonate, you would divide the molar mass of nitrogen by the molar mass of the compound and multiply by 100. This gives a mass percent of nitrogen in ammonium carbonate of around 29.1%.
100 g of the solution contains 11 g of sodium chloride
The mass of sodium bicarbonate (NaHCO3) is 84 grams/mol, while the mass of calcium carbonate (CaCO3) is 100 grams/mol. Therefore, calcium carbonate has a higher molecular mass compared to sodium bicarbonate.
CaCO3=40+12+(3x16)=100 Na2CO3=(2x11)+12+(3x16)=82
To make a 7.5% solution of sodium carbonate in water, add 7.5 grams of sodium carbonate to 100 mL of water and stir until the sodium carbonate is completely dissolved. This will give you a 7.5% (w/v) solution of sodium carbonate.
Since quantity is not mentioned, we take on mole of Sodium Carbonate. One mole of Sodium Carbonate=106g One mole of Na2CO3 has 3 moles of oxygen which are equal to 48g Mass% of oxygen = 48/106 * 100 =45.28%
Yes, sodium carbonate is the same for use in the pool as for use in the laundry.
The solubility of sodium carbonate in water is around 22 g/100 mL of water at room temperature (20°C).
To calculate the percent by mass of hydrogen in the compound, you need to divide the mass of hydrogen by the total mass of the compound and then multiply by 100. Percentage mass of hydrogen = (19.4 g / 83.6 g) x 100 ≈ 23.2% hydrogen mass in the compound.
The molecular formula of ammonium carbonate is (NH4)2CO3. The molar mass of nitrogen in ammonium carbonate is 28.02 g/mol. The molar mass of ammonium carbonate is 96.09 g/mol. To calculate the mass percent of nitrogen in ammonium carbonate, you would divide the molar mass of nitrogen by the molar mass of the compound and multiply by 100. This gives a mass percent of nitrogen in ammonium carbonate of around 29.1%.
Benedict's solution typically contains copper(II) sulfate, sodium citrate, and sodium carbonate. The exact composition can vary, but a common formulation is 17.3 g copper(II) sulfate, 100 g sodium citrate, and 173 g sodium carbonate per liter of water.
Sodium hydroxide has the formula NaOH and it contains three atoms, one each of Sodium, Hydrogen and Oxygen.
The molar mass of potassium carbonate (K2CO3) is 138.21 g/mol. The molar mass of carbon in K2CO3 is 12.01 g/mol. To find the percentage by mass of carbon, divide the molar mass of carbon by the molar mass of potassium carbonate and multiply by 100. This gives a percentage of approximately 8.69%.
Sodium Carbonate has a chemical formula of Na2CO3. Percent composition is calculated using masses. The mass of oxygen in this compound is 3(16) = 48. The total mass is 2(23) + 1(12) + 3(16) = 106. Part/Whole * 100% = 48/106 * 100% = 45.2%