Interpretation:
To identify the name of scientists whose names are used as an honor to name the element with
Concept Introduction :
Although only 13 of the element names have been legally acknowledged by the International Union of Pure and Applied Chemistry (IUPAC), there are 14 elements with people's names.
Explanation of Solution
The element having atomic number 99 is named Einsteinium. Its chemical symbol is ‘Es’. It is named to honor Albert Einstein.
The element having atomic number 101 is named Mendelevium. Its chemical symbol is ‘Md’. It is named to honor Dmitri Mendeleev.
The element having atomic number 104 is named Rutherfordium. Its chemical symbol is ‘Rf’. It is named to honor Ernest Rutherford.
The element having atomic number 107 is named Bohrium. Its chemical symbol is ‘Bh’. It is named to honor Niels Bohr
Chapter 6 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
- The acid-base indicator HX undergoes the following reaction in a dilute aqueous solution: HX (color 1) H+ + X- (color 2). The following absorbance data were obtained for a 0.00035 M solution of HX in 0.1 M NaOH and 0.1 M HCI. Measurements were made at wavelengths of 450 nm and 620 nm using a 1.0 cm glass cuvette. 450 620 A(460 nm) A(630 nm) 0.1 M NaOH 0.1 M HCI 0.065 0.435 0.895 0.150 In the 0.1M NaOH solution, the indicator will be almost 100% in the X- form, while in 0.1M HCI, the indicator will be nearly 100% protonated (HX). Calculate the acid dissociation constant for the indicator if a pH=5 buffer solution containing a very small amount of indicator exhibits an absorbance of 0.567 at 450 nm and 0.395 at 620 nm (measured in a 1 cm glass cuvette).arrow_forwardShow work...give the name of the given compound. Don't give Ai generated solutionarrow_forwardShow work with explanation needed. don't give Ai generated solutionarrow_forward
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