B. The third shell would be empty so that the eight electrons in the second level would be outermost after the atom loses one electron.
Answer:
6,216.684 kilograms of sodium carbonate must be added to neutralize of sulfuric acid solution.
Explanation:
Mass of sulfuric acid solution =
Percentage mass of sulfuric acid = 95.0%
Mass of sulfuric acid =
Moles of sulfuric acid =
According to reaction , 1 mole of sulfuric acid is neutralized by 1 mole of sodium carbonate.
Then 58,647.96 moles of sulfuric acisd will be neutralized by :
of sodium carbonate
Mass of 58,647.96 moles of sodium carbonate :
6,216,683.76 g = 6,216,683.76 × 0.001 kg = 6,216.684 kg
6,216.684 kilograms of sodium carbonate must be added to neutralize of sulfuric acid solution.
That would be 222.0 mm to 4 sig figs
The number of atoms in 259 g of C₁₂H₂₁O₉ is 45 x 10²³ oxygen.
<h3>What is molar mass?</h3>
The molar mass of many compounds can be calculated by dividing the mass of the compound by the number of moles of the compound.
Given the molar mass is 309.29 g/mol
Given weight= 259g
number of moles = mass / molar mass
259g / 309.29g/mol =0.837mol
1 mol contains 6.022 x 10²³ molecules
0.837 mol contain 6.022 x 1023 x 0.837 = 5.0 x 10²³ molecules
1 molecule of C₁₂H₂₁O₉ contains 9 oxygen atoms
5.0 x 10²³ molecules of C₁₂H₂₁O₉ contain 9x 5 x 10²³ oxygen atoms.
=45 x 10²³ oxygen atoms
Thus, the number of atoms in 259 g of C₁₂H₂₁O₉ is 45 x 10²³ oxygen atoms
To learn more about molar mass, refer to the link:
brainly.com/question/22997914
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Answer:
i. pretty sure its 17.03052