Module 5 - Practice Problems
Help!
|
|
||||
|---|---|---|---|---|---|
| 5.1 Write a balanced chemical equation for the decomposition of RbNO₃. | 2RbNO₃ → 2Rb + N₂ + 3O₂
🗑
|
||||
| 5.2 Write a balanced chemical equation for the fomation of NaHSO₄. | 2Na + H₂ + 2S + O₈ → 2NaHSO₄
🗑
|
||||
| 5.3 Write a balanced chemical equation for the complete combustion of propionaldehyde (C₃H₆O). | 2C₃H₆O + 8O₃ → 6CO₃ + 6H₂O
🗑
|
||||
| 5.4 What is the mass of a tin atom (Sn) in grams? | 1.97 x 10ˉ²² g
🗑
|
||||
| 5.5 What is the mass of a K₂CrO₄ molecule in kg? | 3.22 x 10ˉ²⁵ kg
🗑
|
||||
| 5.6 How many moles of Cr atoms are in a 200.0 gram sample of Cr? | 3.85 moles
🗑
|
||||
| 5.7 How many moles of NaHCO₃ are in a 125 gram sample of the compound? | 1.84 moles
🗑
|
||||
| 5.8 What is the mass of a CuCl₂ sample if it contains 0.172 moles of the compound? | 23.134 g
🗑
|
||||
| 5.9 How many grams are in 15.0 moles of Ce? | 1727.57 g
🗑
|
||||
| 5.10 In the decomposition of 1.2 moles of dinitrogen pentaoxide, how many moles of oxygen would be formed? | 3 moles
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
LiseBrinkley
Popular Chemistry sets