Answer:
- Volume of the solution will increase.
- Molarity will decrease.
Explanation:
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In this case, for molarity, unit of concentration relating the moles of solute and volume of solution, we have:
Hence, since the given molarity is 0.70M, we first shall infer that by adding more water, that for sure is the solvent, the volume of the solution will increase which will be the first change. Moreover, since the volume and the molarity are in an inversely proportional relationship, as the volume increases the molarity decreases, which is the other change. In addition to the aforementioned statements, the moles of the solute are not modified as just water is added.
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Higher temperature, more kinetic energy, more space between particles, higher volume
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Answer: atomic number Z, gives the proton number of an element and it is unique for all elements ( i.e no two elements have the same atomic number or proton number) if the atom of the element is electrically neutral, the atomic number can also be the electron number
Explanation:
Answer:
Explanation:
Here, we want to calculate the number of formula units in the given molecule
We start by getting the number of moles
To get the number of moles, we have to divide the mass given by the molar mass
The molar mass is the mass per mole
The molar mass of calcium bromide is 200 g/mol
Thus, we have the number of moles as follows:
The number of formula units in a mole is:
The number of formula units in 0.2075 mole will be:
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