Answer:
0.0917 mol Co(CrO₄)₃
General Formulas and Concepts:
<u>Chemistry - Atomic Structure</u>
- Reading a Periodic Table
- Using Dimensional Analysis
Explanation:
<u>Step 1: Define</u>
37.3 g Co(CrO₄)₃
<u>Step 2: Identify Conversions</u>
Molar Mass of Co - 58.93 g/mol
Molar Mass of Cr - 52.00 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of Co(CrO₄)₃ - 58.93 + 3(52.00) + 12(16.00) = 406.93 g/mol
<u>Step 3: Convert</u>
<u />
= 0.091662 mol Co(CrO₄)₃
<u>Step 4: Check</u>
<em>We are given 3 sig figs. Follow sig fig rules and round.</em>
0.091662 mol Co(CrO₄)₃ ≈ 0.0917 mol Co(CrO₄)₃
Physical. When you simply desolve something with water, to don't actually change it. This action can be undone.
An example of a chemical reaction is when the cells within completely change. You you burn wood, you can't go back in time and un-burn it. Does that make sense?
Answer:
Isotopes of an element are atoms of the same element that have different number of neutrons.
Answer:
(See explanation for further details)
Explanation:
1) The quantity of moles of sulfur is:
2) The number of atoms of helium is:
3) The quantity of moles of carbon monoxide is:
4) The number of molecules of sulfur dioxide is:
5) The quantity of moles of sodium chloride is:
6) The number of formula units of magnesium iodide is:
7) The quantity of moles of potassium permanganate is:
8) The number of molecules of carbon tetrachloride is:
9) The quantity of moles of aluminium is:
10) The number of molecules of oxygen difluoride is:
