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Molecular Mass and Formula Mass

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  1. 1
    Amylum Starch in General Chemistry A clear explanation of amylum starch as a polysaccharide, including its repeating formula unit, polymer structure, and iodine test behavior.
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  2. 2
    Brand of Borax That Is Sodium Tetraborate Decahydrate Identify a borax product labeled as sodium tetraborate decahydrate and compute its chemical formula and molar mass with clear, step-by-st...
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  3. 3
    Chemical formulas with no subscripts Understand when a compound’s chemical formula is written with all subscripts omitted and what that implies about atom ratios.
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  4. 4
    Determine the number of elements in 4NH3 Learn how to determine the number of elements and total atoms represented by the chemical formula 4NH3 using coefficients and subscripts.
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  5. 5
    Ethanol Molar Mass (C2H6O) Calculate the ethanol molar mass step by step from its chemical formula using standard atomic weights.
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  6. 6
    EtOH Medical Abbreviation: Meaning, Chemical Formula, and Structure of Ethanol EtOH medical abbreviation is clarified by linking clinical shorthand to the chemistry of ethanol, including formula, structure, and commo...
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  7. 7
    Fe2O3 (fe_2o_3): name, molar mass, and percent composition Learn the correct name of Fe2O3 and compute its molar mass and mass percent of Fe and O from atomic masses.
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  8. 8
    Formula and Percent Composition for Potassium Chromate Find the chemical formula of potassium chromate and calculate the mass percent of K, Cr, and O from formula mass.
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  9. 9
    How Many Grams Is Silver Nitrate? (AgNO3 Molar Mass) Compute the molar mass of silver nitrate (AgNO3) and convert between moles and grams with correct chemical-formula accounting.
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  10. 10
    How Many Grams of Oxygen Are in Cu2O? Find the grams of oxygen in copper(I) oxide (Cu2O) using molar mass and mass percent composition.
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  11. 11
    How to Find Mass in Chemistry (Moles, Molar Mass, Density, and Solutions) Learn how to find mass using molar mass, density, molarity, and stoichiometry, with clear formulas and worked examples in general chemistry.
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  12. 12
    KCl Molar Mass (Potassium Chloride): Step-by-Step Calculation Calculate the KCl molar mass by adding atomic masses for K and Cl, then apply it for mole–mass conversions and composition checks.
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  13. 13
    Mass of 3.81 mol of PH3 (phosphine) using molar mass Converts 3.81 moles of PH3 to grams by calculating the molar mass from atomic masses.
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  14. 14
    Molar mass co: CO vs Co (carbon monoxide vs cobalt) Resolve the CO vs Co ambiguity and compute the molar mass using atomic masses and chemical formula notation.
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  15. 15
    Molar Mass of AgNO3 (Silver Nitrate) Learn how to calculate the molar mass of AgNO3 by summing the atomic-mass contributions of Ag, N, and O.
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  16. 16
    Molar Mass of Fe (Iron): Value and Conversions Find the molar mass of Fe from the periodic table and use it to convert between grams, moles, and atoms of iron.
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  17. 17
    Molar Mass of Glucose (C6H12O6) Compute the molar mass of glucose by summing the atomic-mass contributions from its chemical formula.
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  18. 18
    Molar Mass of HCl (Hydrogen Chloride) Calculate the molar mass of HCl by summing the atomic masses of hydrogen and chlorine from the periodic table.
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  19. 19
    Molar Mass of SnO2 (Tin(IV) Oxide) Calculates the molar mass of SnO2 by summing the atomic masses according to the chemical formula.
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  20. 20
    Molecular Weight of H2O (Water): Step-by-Step Molar Mass Calculation Learn how to calculate the molecular weight of H2O by summing atomic masses and applying the result to simple mole–mass conversions.
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  21. 21
    NaCl Molar Mass (Sodium Chloride) Compute the NaCl molar mass by adding sodium and chlorine atomic masses to get grams per mole.
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  22. 22
    NaOH Molar Mass (Sodium Hydroxide) — Step-by-Step Calculation Learn how to compute the NaOH molar mass by summing sodium, oxygen, and hydrogen atomic masses and applying correct units and rounding.
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  23. 23
    Sodium Percarbonate — Composition, Reactions, and Molar Mass Understand what sodium percarbonate is, how it releases hydrogen peroxide in water, and how to calculate its molar mass and available oxy...
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  24. 24
    Sucrose (saccharose): formula and molar mass Molecular formula, molar mass, and percent composition for sucrose (saccharose) with a clear breakdown.
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