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Mass calculation using the formula Mass = Moles × Molar Mass is a fundamental concept in chemistry that allows you to determine the mass of a substance required for a solution based on the number of moles and the substance's molar mass.
The calculator uses the basic chemical formula:
Where:
Explanation: This formula connects the microscopic scale (number of particles) with the macroscopic scale (measurable mass) through Avogadro's number and atomic/molecular weights.
Details: Accurate mass calculation is essential for preparing solutions with precise concentrations, conducting chemical reactions, pharmaceutical preparations, and laboratory experiments where exact quantities are critical.
Tips: Enter the number of moles and the molar mass of urea (60.06 g/mol for urea). Both values must be positive numbers. For urea solutions, this helps determine the exact mass needed for specific molar concentrations.
Q1: What is the molar mass of urea?
A: The molar mass of urea (CH₄N₂O) is 60.06 g/mol, calculated from carbon (12.01 × 1), hydrogen (1.008 × 4), nitrogen (14.01 × 2), and oxygen (16.00 × 1).
Q2: How do I calculate moles from concentration?
A: Moles = Concentration (mol/L) × Volume (L). Once you have moles, you can use this calculator to find the mass.
Q3: Why is urea commonly used in solutions?
A: Urea is widely used in biochemistry for protein denaturation, as a fertilizer in agriculture, and in various industrial applications due to its high solubility and denaturing properties.
Q4: Can this calculator be used for other compounds?
A: Yes, this calculator works for any chemical compound. Simply input the number of moles and the compound's specific molar mass.
Q5: What precision should I use for laboratory work?
A: For most laboratory applications, measure mass to at least 0.001 g precision using an analytical balance for accurate results.