Freshwater on the land surface is a vital part of the water cycle for everyday human life. On the landscape, freshwater is stored in rivers, lakes, reservoirs, and creeks and streams. Most of the water people use everyday comes from these sources of water on the land surface.
No it will be a 10% of that balance so take 16 * 10% and then take that answer and divide bye 70%
Answer:
The molarity is 3.42
Explanation:
The molarity reflects the concentration of a solution and indicates the number of moles of solute per liter of solution. In other words, the molarity (M) is the number of moles of solute that are dissolved in a given volume.
The Molarity of a solution is determined by the following formula:
Molarity is expressed in units ().
To know the amount of moles of solute (NaCl) you must know its molar mass. If:
- Na: 23 g/mole
- Cl: 35.45 g/mole
the molar mass of NaCl is: 23 g/mole + 35.45 g/mole= 58.45 g/mole
Now you apply a rule of three as follows: if 58.45 g of NaCl are present in 1 mole, 10 grams of the compound in how many moles are they?
moles= 0.171
Then:
- number of moles of solute: 0.171 moles
- volume= 50 mL= 0.05 L (being 1 L=1000 mL)
Replacing in the definition of molarity:
Molarity= 3.42
<u><em>The molarity is 3.42 </em></u><u><em></em></u>
Answer:
The ability to be maintained at a certain rate or level
Explanation:
Explanation:
In balancing chemical equations, the law of conservation of matter must be strictly obeyed.
By the virtue of this, the following steps are usually taken:
- First identify the atoms on each side of the expression. This to know the number of species to balance.
- Then count the atoms on each side.
- Then using appropriate number as the coefficients, increase the atom on each side until there are equal numbers on both sides.
- Finally, check to make sure we have the same number of each type of atom on each side.