6 . 2 in its inner shell & the remaining 6 in its outer shell.
Answer:
The periodic table
Explanation:
The periodic table can show the atomic number and atomic mass of any atoms easily. To convert grams of water to moles of water, you need to know the atoms that made up water molecules then find out their molecular mass. Water is made of two hydrogens and one oxygen atoms. Then you can find the atomic mass of hydrogens is 1 while oxygen is 16. The molecular mass of water will be 2*1 + 16= 18g/mol.
<u>Answer:</u> The mass of 97 % of NaOH solution required is 114.33 g
<u>Explanation:</u>
To calculate mass of a substance, we use the equation:
We are given:
Density of 10 % solution = 1.109 g/mL
Volume of 10% solution = 1 L = 1000 mL (Conversion factor: 1 L = 1000 mL)
Putting values in above equation, we get:
![1.109g/mL=\frac{\text{Mass of }10\%\text{ solution}}{1000mL}\\\\\text{Mass of }10\%\text{ solution}=1109g](https://tex.z-dn.net/?f=1.109g%2FmL%3D%5Cfrac%7B%5Ctext%7BMass%20of%20%7D10%5C%25%5Ctext%7B%20solution%7D%7D%7B1000mL%7D%5C%5C%5C%5C%5Ctext%7BMass%20of%20%7D10%5C%25%5Ctext%7B%20solution%7D%3D1109g)
The mass of 10 % solution is 1109 g.
To calculate the mass of concentrated solution, we use the equation:
![c_1m_1=c_2m_2](https://tex.z-dn.net/?f=c_1m_1%3Dc_2m_2)
where,
are the concentration and mass of concentrated solution.
are the concentration and mass of diluted solution.
We are given:
![c_1=97\%\\m_1=?g\\c_2=10\%\\m_2=1109g](https://tex.z-dn.net/?f=c_1%3D97%5C%25%5C%5Cm_1%3D%3Fg%5C%5Cc_2%3D10%5C%25%5C%5Cm_2%3D1109g)
Putting values in above equation, we get:
![97\times m_1=10\times 1109\\\\m_1=114.33g](https://tex.z-dn.net/?f=97%5Ctimes%20m_1%3D10%5Ctimes%201109%5C%5C%5C%5Cm_1%3D114.33g)
Hence, the mass of 97 % of NaOH solution required is 114.33 g