Answer:30.27 g HNO3
Step by step solution:
45 g Cu x 1 mol Cu / 63.54 g Cu
= 0.1802 mol Cu
0.1802 mol Cu x 8 mol HNO3/3 mol Cu =0.4805 mol HNO3
Molar Mass HNO3
= 1.0 + 14.0 +3×16.0
= 63.0 g/mol
0.4805 moles HNO3 x 63.0 g HNO3/1 mol HNO3
= 30.27 g HNO3
Answer:
1. Animals are multicellular.
2. Animals are heterotrophic, obtaining their energy by consuming energy-releasing food substances.
3. Animals typically reproduce sexually.
4. Animals are made up of cells that do not have cell walls.
5. Animals are capable of motion in some stage of their lives.
6. Animals are able to respond quickly to external stimuli as a result of nerve cells, muscle or contractile tissue, or both.
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Answer:
The answer is <u>C. As2O3</u>
Explanation:
0.600 gr of Arsenic and Oxygen.
0.454 gr of Arsenic
So, 0.146 gr of Oxygen will be in the compound.
- First: The grams of each element must be divided by its atomic weight:
- 0.454 gr As / 74.92u As = 0.00606
- 0.146 gr O / 16u O = 0.009125
- Both results must be divided by the lowest number found:
- 0.009125 / 0.00606 = 1.5 O
- As one of the values is not an integer then both results are multiplied until both give an integer:
- Then the answer is given: