How plenty of oxygen atoms are there in 4.0 × 10⁻³ moles of Al(NO₃)₃? offer your answer come 1 decimal place.

You are watching: Each mole of al(no3)3 contains how many moles of oxygen atoms?

Video Transcript

How numerous oxygen atoms are there in 4.0 times 10 come the negative three mole of Al(NO3)3? give your answer to one decimal place.

The mole is the SI unit of quantity of substance. One mole that a substance is equal to 6.02214076 time 10 come the 23rd power of entities. This value is well-known as Avogadro’s number. We commonly do not need to use Avogadro’s number to this level of precision and can ring the worth to 6.022 time 10 come the 23rd power. Entities may refer to any type of object which is gift counted but in chemistry generally refers come atoms, molecules, formula units, or particles.

through this background details in mind, let’s go back to the question. We desire to calculate the variety of oxygen atoms over there are, offered the moles of aluminum nitrate. We know from the meaning of the mole that one mole of aluminum nitrate will contain 6.022 times 10 to the 23rd formula units of aluminum nitrate. We understand we are starting with 4.0 time 10 to the negative third moles of aluminum nitrate. We can multiply this worth by our relationship written together a fraction, with moles of aluminum nitrate in the denominator, so the the unit moles of aluminum nitrate will cancel. Performing the calculation gives us a value of 2.4088 times 10 come the 21st formula devices of aluminum nitrate.

Looking at the chemical formula that aluminum nitrate, we view that each formula unit the aluminum nitrate contains three nitrate ions. And also each nitrate ion has three oxygen atoms. This means that one formula unit the aluminum nitrate has actually nine oxygen atoms. We recognize that there room 2.4088 time 10 to the 21st formula systems of aluminum nitrate in 4.0 times 10 come the an adverse third moles of aluminum nitrate. We also know that one formula unit of aluminum nitrate contains nine atom of oxygen. We deserve to multiply the number of formula units of aluminum nitrate by our connection written as a fraction, v formula systems of aluminum nitrate in the denominator, so that the units cancel. We carry out the calculation and determine the there room 2.168 times 10 to the 22nd atoms of oxygen.

However, the inquiry asks united state to give our answer come one decimal place.

See more: Complete List Of Words With The Letter J And Q And J, Words With Q And J

With proper rounding, us have figured out that 4.0 times 10 come the negative third moles of aluminum nitrate has 2.2 times 10 come the 22nd atom of oxygen.

Course Menu

Chemistry • High college The Scientific approaches The study of Chemistry divide of issue nature of matter units of measure uncertainty in measure The discovery of Atomic framework The contemporary View the Atomic framework atom Weights The periodic Table Molecules and also Molecular link Ions and also Ionic compound Naming inorganic Compounds Some basic Organic compound chemistry Equations basic Patterns of chemistry Reactivity Formula Weights Avogadro’s Number and the Mole Empirical formulas from Analyses Quantitative info from well balanced Equations Limiting reactants basic Properties of Aqueous options Oxidation-Reduction reaction concentration of remedies equipment Stoichiometry and also Chemical evaluation The Nature that Chemical power The first Law of Thermodynamics Enthalpy Calorimetry Hess’s regulation Enthalpies of formation bond Enthalpies Foods and also Fuels The wave Nature of light Quantized Energy and also Photons heat Spectra and also the Bohr version Quantum Mechanics and also Atomic Orbitals Many-Electron atoms Electron configuration Electron Configurations and the routine Table Electron Affinity Metals, Nonmetals, and also Metalloids fads for Selected Nonmetals Ionic Bonding Covalent Bonding shortcut Polarity and also Electronegativity illustration Lewis frameworks Resonance structures Strengths and also Lengths that Covalent bond Molecular shapes The VSEPR version molecule Shape and Molecular Polarity Hybrid Orbitals Multiple bonds molecule Orbitals Bonding in period 2 Diatomic molecule press The Ideal-Gas Equation additional Applications of the Ideal-Gas Equation molecule Effusion and Diffusion genuine Gases: Deviations native Ideal habits Intermolecular pressures Vapor press category of Solids frameworks of Solids Metallic Solids Metallic Bonding Polymers The Solution process Expressing equipment Concentration Reaction rates Concentration and Rate regulations The change of Concentration with Time Temperature and Rate Reaction mechanisms Catalysis The Equilibrium continuous Le Chatelier’s rule Brønsted-Lowry Acids and also Bases The pH range Weak acids Acid-Base nature of Salt services Acid-Base Titrations Precipitation and Separation of ions Qualitative evaluation for Metallic facets Human activities and Earth’s environment Human tasks and Water quality green Chemistry Spontaneous processes complimentary Energy and also the Equilibrium constant Oxidation States and also Oxidation-Reduction reaction Balancing oxidation Equations cabinet Potentials under Standard conditions Corrosion Electrolysis Radioactivity and also Nuclear Equations patterns of Nuclear stability rates of Radioactive decay Energy transforms in nuclear Reactions nuclear Power: Fission periodic Trends and Chemical reactions nature of Selected Nonmetals The change Metals Transition-Metal Complexes Alkenes, Alkynes, and Aromatic Hydrocarbons organic Functional groups