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DraeDrae138
20.09.2020 •
Chemistry
And 1% of other gasses
1. The atmosphere is a shell of gasses that gasses the Earth.
2. The main components of the atmosphere are
and
3. There
layers in the atmosphere:
and
stratosphere
Solved
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Ответ:
Explanation:
Molarity is a measure of concentration in moles per liter, so the formula is:
This solution has 9.0 moles of solute and 462 milliliters of solution. We must convert milliliters to liters. Remember that 1 liter contains 1000 milliliters.
Create a ratio.
Multiply by the value we are converting: 462 milliliters
Now we know both values and we can solve for the molarity.
moles of solute= 9.0 moles liters of solution = 0.462 LDivide.
The original measurements of moles and milliliters have 2 and 3 significant figures respectively. We have to round our answer to the least number of sig figs, which is 2 in this case.
For the number we found, that is the ones place. The 4 in the tenths place (19.4805195) tells us to leave the 9 in the ones place.
1 mole per liter is equal to 1 molar or M, so our answer is equal to 19 M.
The molarity of the solution is approximately 19 M.