Calculate and express your answer to the correct number of significant figures
(1.00866 - 1.00728)/6.02205 x 10^23
During addition and subtraction, the answer cannot have more digits to the right of the decimal point than either of the original numbers.
Therefore 1.00866-1.00728 = 0.00138 (the given two numbers have same number number of decimal places).
During multiplication and division, the number of significant figures in the final product or quotient is determined by the original number that has the smallest number of significant figures.
Now, 0.00138/6.02205*10^23 = 0.000229 * 10^-23 = 2.29 * 10^-27(0.00138 has 3 significant figures and 6.02205 has six significant figures)
all 0.00138, 0.000229 and 2.29 have same number of significant figures.
Calculate and express your answer to the correct number of significant figures (1.00866 - 1.00728)/6.02205 x...
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A) Calculate [H3O+][H3O+] for solution 1.85×10−3 MM HNO3.HNO3. Express your answer to three significant figures and include the appropriate units. B) Calculate [OH−][OH−] for solution 1.85×10−3 MM HNO3.HNO3. Express your answer to two significant figures and include the appropriate units. C) Calculate [OH−][OH−] for solution 2.9×10−3 MM KOHKOH. Express your answer to two significant figures and include the appropriate units. D) Calculate [H3O+][H3O+] for solution 2.9×10−3 MM KOHKOH. Express your answer to two significant figures and include the appropriate units....
Given the following information: Mass of proton = 1.00728 amu Mass of neutron = 1.00866 amu Mass of electron = 5.486 x 10-4 amu Speed of light = 2.9979 108 m/s Calculate the nuclear binding energy (absolute value) of Li which has an atomic mass of 6.015126 amu. J/mol
An electron travels at 0.494c. 1. Calculate its Einsteinian momentum. (Express your answer to three significant figures.) ______________ x 10^-22 kg m/s 2. Calculate its Einsteinian kinetic energy. (Express your answer to three significant figures.) _____________ x 10^-15 J 3. Calculate its rest energy. (Express your answer to three significant figures.) _____________ x 10^-14 J 4. Calculate the total energy of the electron. (Express your answer to three significant figures.) ____________ x 10^-14 J
Calculate:
Part A) [H+] for [OH−]=3.5×10^-4 M Express your
answer using two significant figures.
Part B) [H+] for [OH−] =8.4×10^-9 M Express
your answer using two significant figures.
Part C) Calculate [H+] for a solution in which [OH−] is 100
times greater than [H+].
Please show how you solved it, thanks!
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