approximalety 2.94 molar
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The molarity of a 5% solution of NH3 in water depends on the density and molecular weight of NH3. Without this information, it is not possible to calculate the molarity.
Adding 4.5 moles of NH3 to 250 mL of water will result in a solution with a volume slightly greater than 250 mL. To calculate the molarity, you need to know the final volume of the solution. Once you have the final volume, you can use the formula: Molarity = moles of solute / liters of solution.
Ammonium (cation): NH4+ Hydroxyl (anion): OH- It is incorrect to write NH4OH solution, because the solution is of ammonia (NH3) in water.
The percent by mass of hydrogen in NH3 is 17.65%. This can be calculated by dividing the mass of hydrogen in NH3 by the total mass of NH3 and then multiplying by 100.
H2O (water) and NH3 (ammonia) can mix and form a homogeneous solution in certain circumstances, such as when diluting ammonia in water or using them as solvents. However, ammonia is a weak base and can react with water to produce ammonium and hydroxide ions.
When NH3 is dissolved in water, it reacts with water molecules to form ammonium hydroxide (NH4OH). This reaction increases the concentration of hydroxide ions (OH-) in the solution, making it basic. Ammonium ions (NH4+) and hydroxide ions (OH-) are present in the resulting solution.