<h3><u>Answer;</u></h3>
0.0024%
<h3><u>Explanation</u>;</h3>
- Parts per million or ppm means out of a million. Usually describes the concentration of something in water or soil.
- One ppm is equivalent to 1 milligram of something per liter of water (mg/l) or 1 milligram of something per kilogram soil (mg/kg).
Therefore to convert 24 ppm of CO as a percentage.
24 ppm × 100%
(24/10⁶)× 100%
<u>= 0.0024%</u>
The correct answer is option 3. Oxygen having a density of 1.43 grams per liter describes a physical property of the element oxygen. A physical property is a property that can be observed or measured without changing the composition of matter and density is one physical property.
Answer: 2,3 * 4 = 9,2
Explanation:
If 1 mole CH4 has 4 H atoms 2,3 moles of CH4 will have 9,2 H atoms.
Answer: 18g
Explanation:
1 mle of glucose combusts to give 6moles of CO2 and 6moles of H2O
C6H12O6 + 6O2-------- 6CO2 + 6H2O at STP.
Multiplying 6 by 3 moles we have 18 g of CO2
