Answer:
A cation has more protons than electrons, consequently giving it a net positive charge. For a cation to form, one or more electrons must be lost, typically pulled away by atoms with a stronger affinity for them.
Were i found my answer: Cation vs Anion: Definition, Chart and the Periodic Table
Explanation:
Bases
A base is a substance that dissociates into more hydroxide ions (-OH-) when dissolved in water. Bases are also good proton acceptors. Bases, therefore, reduce the number of H+ and increase OH- hence raising the pH of the solution.
B(aq) + H₂O(l) ⇌ BH⁺(aq) + OH⁻(aq)
Explanation:
Other properties of bases is that they are bitter to the taste and they feel slippery when touched. Strong bases are nonthlese very corrosive like acids. Bases turn red litmus paper blue. Most alkali hydroxides such as NaOH are bases.
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Specific heat capacity is the amount of energy required to raise one gram of substances by 1 degree celsius . Therefore specific heat capacity for tatanium is 89.7j /( 33.0g x5.2 degree celsius) = 0.52j/g degree celcius
Molar mass for tatanium is 47.9 g/mole
heat is therefore 47.9 g/mole x 0.52j/g =24.9j/mole
Answer:
The resulting solution contains approximately 666 g of water.
Explanation:
In the initial solution we have:
1g salt : 8g sugar : 200g water
This means that the ratios are:
![\frac{salt}{sugar} = \frac{1}{8} \\\\\frac{sugar}{water} = \frac{8}{200} =\frac{1}{25}](https://tex.z-dn.net/?f=%5Cfrac%7Bsalt%7D%7Bsugar%7D%20%20%3D%20%5Cfrac%7B1%7D%7B8%7D%20%5C%5C%5C%5C%5Cfrac%7Bsugar%7D%7Bwater%7D%20%3D%20%5Cfrac%7B8%7D%7B200%7D%20%3D%5Cfrac%7B1%7D%7B25%7D)
In the final solution we have:
5g salt: xg sugar: yg water
The new ratios are:
![\frac{salt}{sugar} = \frac{3}{8} \\\\\frac{sugar}{water} = \frac{1}{50}](https://tex.z-dn.net/?f=%5Cfrac%7Bsalt%7D%7Bsugar%7D%20%3D%20%5Cfrac%7B3%7D%7B8%7D%20%5C%5C%5C%5C%5Cfrac%7Bsugar%7D%7Bwater%7D%20%3D%20%5Cfrac%7B1%7D%7B50%7D)
Now we can calculate the amount of sugar in the final solution:
![\frac{salt}{sugar} = \frac{5}{x} =\frac{3}{8} \\\\X = 13.333 g](https://tex.z-dn.net/?f=%5Cfrac%7Bsalt%7D%7Bsugar%7D%20%20%3D%20%5Cfrac%7B5%7D%7Bx%7D%20%3D%5Cfrac%7B3%7D%7B8%7D%20%5C%5C%5C%5CX%20%3D%2013.333%20g)
Finally, we calculate the amount of water:
![\frac{sugar}{water} = \frac{13.333}{y} = \frac{1}{50} \\y = 666.667 g](https://tex.z-dn.net/?f=%5Cfrac%7Bsugar%7D%7Bwater%7D%20%3D%20%5Cfrac%7B13.333%7D%7By%7D%20%3D%20%5Cfrac%7B1%7D%7B50%7D%20%5C%5Cy%20%3D%20666.667%20g)
Answer:
![\text{ }1.25\times10^{23}\text{ formula units}](https://tex.z-dn.net/?f=%5Ctext%7B%20%7D1.25%5Ctimes10%5E%7B23%7D%5Ctext%7B%20formula%20units%7D)
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:
![\frac{41.5}{200}\text{ = 0.2075 mol}](https://tex.z-dn.net/?f=%5Cfrac%7B41.5%7D%7B200%7D%5Ctext%7B%20%3D%200.2075%20mol%7D)
The number of formula units in a mole is:
![1\text{ mole = 6.02 }\times10^{22}\text{ formula units}](https://tex.z-dn.net/?f=1%5Ctext%7B%20mole%20%3D%206.02%20%7D%5Ctimes10%5E%7B22%7D%5Ctext%7B%20formula%20units%7D)
The number of formula units in 0.2075 mole will be: