Ask questions and get helpful answers.
Ask a New Question
  1. Questions
  2. physics

An oxygen molecule consists of two oxygen atoms whose total mass is 5.3 x 10-26 kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is 1.82 × 10-46 kg·m2. From these data, estimate the effective distance between the atoms.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Joe
1 answer

  1. For each atom, more than 99.9% of the mass is in the nucleus, which can be treated as a point, when compared to the internuclear separation, d. Let M be the total mass of the molecule.

    The moment of inertia of the O2 molecule, though an axis that passes midway between the atoms, is

    I = 2*(M/2)*(d/2)^2 = M*d^2/4
    = 1.82*10^-46 kg*m^2

    d^2 = 7.28^10^-46/5.3*10^-26
    = 13.74*10^-21 m^2
    d = 1.172*10^-10 m = 1.172*10^-8 cm
    = 1.172 Angstroms

    The actual value is somewhat higher (1.21 Angstroms), but this is what the formula says.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    drwls

Answer this Question

Related Questions

  1. science

    Select the correct formula for cellular respiration. Carbon dioxide + water + ATP → glucose + oxygen Glucose + oxygen → carbon dioxide + water + ATP*** Carbon dioxide + glucose → oxygen + water + ATP Glucose + water → oxygen + carbon dioxide + ATP

  2. science

    Which change is chemical? water boiling water undergoing electrolysis*** water freezing water evaporating Which number remains unchanged during photosynthesis? the number of carbon atoms*** the number of water molecules the number of glucose molecules the

  3. science

    1. Which statement is true about the following molecule? (1 point)The molecule is composed of four atoms.The molecule contains oxygen atoms.The molecule is water.The molecule represents an element. 2. A(n) _____________ is made up of two or more different

  4. science

    HELP ASAP 1) which change is chemical? • water undergoing electrolysis •water freezing •water evaporating •water boiling 2)which number remains unchanged during photosynthesis • The number of glucose molecules • The number of carbon atoms •

  5. biology

    Nitric acid is a chemical that is used in the production of fertilizers. The chemical formula of nitric acid is HNO3. Which of the following are true for a nitric acid molecule? Select all that apply. It has three oxygen atoms. It has three nitrogen atoms.

  6. chemistry

    A student writes the equation that summarizes respiration incorrectly C_6 H_12 O_6 + 6O_2 ----> 3CO + 3CO_2 + 6H_2O Which of the following statements correctly identifies the mistake in balancing the equation? a. Not enough oxygen atoms are created in the

  7. Science

    1) Which of the following is a chemical change? (1 point) Boiling of water Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen*** 2) What is the mass of water that results from combining 2.0g of hydrogen with

  8. chemistry

    You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of 1.00 g, combust it under an oxygen atmosphere, and collect 2.20 g of carbon dioxide and 0.400 g water. The molar mass of aspirin is between 170 and 190

  9. Chemistry

    Oxygen gas and water are produced by the decomposition of hydrogen peroxide. If 10.0 mol of H2O2 decomposes, what volume of oxygen will be produced? Assume the density of oxygen is 1.429g/L. 2H2O2= 2H2O+O2

  10. science

    During cellular respiration, the covalent bonds of a molecule are broken down to form products. Which molecule is broken down? ADP carbon dioxide water sugar*** During cellular respiration, four total ATP are produced when pyruvic acid is created. What

Still need help?

You can ask a new question or browse existing questions.