Molar Mass of C₈H₁₀N₄O₂
Caffeine. A purine alkaloid. A typical cup of coffee contains around 0.5 mmol of it.
Molar mass of C8H10N4O2
194.194 g/mol
8 × 12.011 + 10 × 1.008 + 4 × 14.007 + 2 × 15.999 = 194.194
Calculation, element by element
| Element | Atoms | Atomic mass (g/mol) | Subtotal | Mass % |
|---|---|---|---|---|
| Carbon (C) | 8 | 12.011 | 96.088 | 49.48% |
| Hydrogen (H) | 10 | 1.008 | 10.080 | 5.19% |
| Nitrogen (N) | 4 | 14.007 | 56.028 | 28.85% |
| Oxygen (O) | 2 | 15.999 | 31.998 | 16.48% |
| Total | 194.194 | 100% |
= 0.051495 mol = 3.1011 × 1022 formula units
C₈H₁₀N₄O₂ molar mass FAQ
What is the molar mass of caffeine (C₈H₁₀N₄O₂)?
194.194 g/mol. It is the sum of the atomic masses of every atom in the formula: 8 × 12.011 + 10 × 1.008 + 4 × 14.007 + 2 × 15.999 = 194.194 g/mol.
How many grams are in one mole of C₈H₁₀N₄O₂?
194.194 g. Molar mass is the mass of one mole (6.022 × 10²³ formula units), so 1 mol of C₈H₁₀N₄O₂ weighs 194.194 g and 0.5 mol weighs 97.097 g.
How many moles are in 10 g of C₈H₁₀N₄O₂?
10 g ÷ 194.194 g/mol = 0.05149 mol.
What is the percent composition of C₈H₁₀N₄O₂?
Carbon 49.48%, Hydrogen 5.19%, Nitrogen 28.85%, Oxygen 16.48%.
Is molecular weight the same as molar mass for C₈H₁₀N₄O₂?
Numerically yes: the molecular (or formula) weight is 194.194 u per formula unit, and the molar mass is 194.194 g/mol.
Molar masses of other common compounds
H2O WaterNaCl Sodium chlorideNaOH Sodium hydroxideC6H12O6 GlucoseCO2 Carbon dioxideHCl Hydrochloric acidH2SO4 Sulfuric acidO2 Oxygen gasCaCO3 Calcium carbonateC2H5OH EthanolNH3 AmmoniaN2 Nitrogen gasCH4 MethaneCuSO4 Copper(II) sulfateKMnO4 Potassium permanganateMgCl2 Magnesium chlorideCuSO4·5H2O Copper(II) sulfate pentahydrateNaHCO3 Sodium bicarbonateNa2CO3 Sodium carbonateKCl Potassium chlorideHNO3 Nitric acidH3PO4 Phosphoric acidCH3COOH Acetic acidC12H22O11 SucroseH2O2 Hydrogen peroxideCa(OH)2 Calcium hydroxideFe2O3 Iron(III) oxideAl2O3 Aluminium oxideAgNO3 Silver nitrateNH4NO3 Ammonium nitrateC9H8O4 AspirinC3H8 PropaneC8H18 OctaneH2 Hydrogen gasCl2 Chlorine gasO3 OzoneCO Carbon monoxideSO2 Sulfur dioxideKOH Potassium hydroxideMgO Magnesium oxideCaCl2 Calcium chlorideNaNO3 Sodium nitrateK2Cr2O7 Potassium dichromateBaSO4 Barium sulfate