Answer:
517.3 K
Explanation:
Initial volume of gas V1= 114 L
Initial temp. T1= 273 K
Final volume V2= 216 L
Final temp. T2= ?
From Charles law, Volume is directly proportional to temperature provided pressure is kept constant
V1/T1 = V2/T2
T2 = V2T1/V1
T2 = (216×273)/114
T2 = 517.3 K
The average atomic mass of the imaginary element : 47.255 amu
<h3>Further explanation </h3>
The elements in nature have several types of isotopes
Isotopes are elements that have the same Atomic Number (Proton)
Atomic mass is the average atomic mass of all its isotopes
Mass atom X = mass isotope 1 . % + mass isotope 2.% ..
isotope E-47 47.011 amu, 87.34%
isotope E-48 48.008 amu, 6.895
isotope E-49 50.009 amu, 5.77%
The average atomic mass :
Answer:
See below.
Explanation:
The mass of octane in the sample of gasoline is 0.02851 * 482.6 = 13.759 g of octane.
The balanced equation is:
2C8H18(l) + 25O2(g) ----> 16CO2(g) + 18H2O(g)
From the equation, using atomic masses:
228.29 g of octane forms 704 g of CO2 and 324.3 g of H2O
So the mass of CO2 formed from the combustion of 13.759 g of octane = (704 * 13.759) / 228.29
= 42.43 g of CO2.
Amount of water = 324.3 * 13.759) / 228.29
= 19.55 g of H2O.
In atomic models balls represent an atom
Now if an atom like carbon has four holes it means it can bond with four atoms. It has valency = 4.
The atomic number of carbon is 6
the configuration is 1s2 2s2 2p2
So due to four valence electrons it can bind with four other atoms and thus we have four holes in carbon ball
The hydrogen show a valency of one
the atomic number of hydrogen = 1
its configuration is 1s1
So it can bind with one atom (max) thus we have one hole in hydrogen ball
Answer:<u> G1, S, and G2</u>
Explanation: Typically interphase lasts for at least 91% of the total time required for the cell cycle. Interphase proceeds in three stages, G1, S, and G2, followed by the cycle of mitosis and cytokinesis.
( I hope this somewhat helps )
