Answer:
0.0005mol/kg
Explanation:
Molality = mole of solute/mass of solvent (kg)
From the question, we obtained the following data:
Mole of solute = 0.05mole
Mass of solvent = 100kg
Molality = 0.05/100
Molality = 0.0005mol/kg
The molality of the solution is 0.0005mol/kg
Answer:
mg atom have 12 election and mg ion have 10 election
3.19 x 10³
Explanation:
The exponential format of the a figure is used to simplify the expression of big numbers to make them easier to work with.
The number is simply raised to the power of tens.
3,186
This is number three thousand one hundred and eighty six
The highest number here is a thousand
A thousand is 10³
So we simply take the rest of the values and express it this way;
3.186 x 10³ or 3.19 x 10³ on rounding up
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Answer:
carbon dioxide, salt, copper
