Answer:
The empirical formula is CH3O2
Explanation:
From The question, number of moles of CO2= 4.89/44=0.111mol
Number of moles of H2O=3/18= 0.1667moles
Since 1mole of CO2 contains 1mole of carbon and 2 moles of O2,
Implies that there 0.111 moles of C and 0.222moles of O2
Similarly also 0.1667moles of water contains 2 moles of H2 hence = 0.333 moles of H2
Dividing by smallest number= 0.111mol
For C = 0.111/0.111= 1
For H = 0.333/ 0.111= 3
For O = 0.222/0.111= 2
Hence the empirical formula= CH3O2
Answer:
<em>21.14 K</em>
Explanation:
<em>We know the Ideal Gas Equation is :-</em>
<em>PV = nRT</em>
<em>=> T = PV/nR</em>
<em>=> T = 6.5 x 20 / 7.5 x 0.082</em>
<em>=> T = 130 / 6.15</em>
<em>=> T = 21.14 K</em>
Answer:
2C2H6 + 7O2 → 4 CO2 + 6H20
Explanation:
Silver (Ag) is a metal, and is thus the most likely to be malleable. NaCl (sodium chloride, or salt) is brittle and a typical ionic compound in terms of its properties. Nitrogen and propane are generally gases or liquids.
Answer:
Option-D (Piece of Wood) is the correct answer.
Explanation:
Density is related to mass and volume as,
Density = Mass / Volume
For Wood,
Density = 42.5 / 50
Density = 0.85
You can calculate remaining densities by yourself. Among all the density of Piece of Wood is the least.
