Some amount of water is evaporated from a 2.0 L, 0.2 M NaI solution, to from a 1.0 L solution. The molar mass of NaI is 150 g/mo
1 answer:
Hello!
The right answer is C) 60 g/L
To know the final concentration of NaI solution, you'll need to calculate the initial amount of NaI in grams in the following way:
Next, you only need to calculate the concentration on NaI in the new 1 L solution, because only water is evaporating from the initial solution:
Have a nice day!
The right answer is C) 60 g/L
To know the final concentration of NaI solution, you'll need to calculate the initial amount of NaI in grams in the following way:
Next, you only need to calculate the concentration on NaI in the new 1 L solution, because only water is evaporating from the initial solution:
Have a nice day!
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Answer: He should add a single dot below the symbol to correct the electron dot diagram of an aluminium atom.
Explanation: Electron dot structures are the structures in which valence electrons around an atom are shown. The electrons are represented as dots in these structures.
Aluminium is the 13th element of the periodic table.
Electronic configuration of Aluminium is given by:
Valence electrons of aluminium = 3
In the given image, 2 valence electrons are shown and total number of valence electrons are 3. So, in order to correct the diagram, he should add a single electron below the symbol.
