I’m so sorry i have to do this 5L 24
Answer:
0,508g of H₂O₂
Explanation:
For the reaction:
2KMnO₄(aq) + H₂O₂(aq) + 3H₂SO₄(aq) → 3O₂(g) + 2MnSO₄(aq) + K₂SO₄(aq) + 4H₂O(l)
2 moles of KMnO₄ react with 1 mol of H₂O₂.
In the titration, moles of KMnO₄ required were:
1,68M×0,0178L = 0,0299 moles of KMnO₄. Moles of H₂O₂ are:
0,0299 moles of KMnO₄×
= 0,01495 moles of H₂O₂. As molar mass of H₂O₂ is 34,01g/mol, mass of H₂O₂ was dissolved is:
0,01495 moles of H₂O₂×
= <em>0,508g of H₂O₂</em>
Bar graph is a visual tool that uses bars to compare data among categories
Explanation:
Bar charts compares the values between the categories. It is one of the easy method to check whether the data is discrete or continuous where discrete data is counted as number of political parties and continuous is measured in height or sales.
If the data has more than one value per category, a stacked or grouped bar charts allows you to see individual values and compare categories.
The stacked bar chart is ideal for comparing the sum of the components of each group. The stacked bar chart is not useful for comparing totals because the present of all respondents adds up to 100% roughly for every category.
