1 atomic mass unit = _ kg
Correct answer: A. 1.66×10-²⁷ kg
- A. 1.66×10-²⁷ kg
- B. 2.45×10-³¹ kg
- C. 2.77 x 10^34 kg
- D. 9.34×10-²⁵ kg
Explanation
The atomic mass unit (AMU or amu) of an element is a measure of its atomic mass. Also known as the dalton (Da) or unified atomic mass unit (u), the AMU expresses both atomic masses and molecular masses. AMU is defined as one-twelfth the mass of an atom of carbon-12 (12C). masses. 1 amu is equal to 1.67377 x 10-24 grams or 1.67377 x 10-27 kilograms.
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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