As in relative abundance , one is take reference
So,
One is taken as 1:
Other is subtracted from it:
(1 - 0.6011)(atomic mass of Ga-71)
Equation can be written as:
<span>69.723 = (0.6011)(68.9256) + (1-0.6011)x </span>
<span>(1-0.6011) is the percentage abundance of Ga-71 expressed in percentage: </span>
<span>Solving for x </span>
<span>28.2918 = 0.3989 x </span>
<span>x= 70.9246.......</span>
Standar molar entropies from a table:
CH3OH (l): 126.8 J / K*mol
O2 (g): 205.1 J/ K*mol
CO2(g): 213.7 J/K*mol
H2O(g): 188.8 J/J*mol
Now use the coefficients of the reaction and sum the product entropies less the reactant entropies:
4*188.8 + 2*213.7 - 3*205.1 - 2* 126.8 = 313.7 J/mol*K
Answer: option C) +3173.766 J/mol*K
Answer:
158 mL
158 mL of 0.1 M of HCl is required to react completely with 1 g mixture of Na2CO3 and NaHCO3, containing equimolar amounts of both
Explanation:
hope helpez -,-~
btw masoom bachi copied me~
Answer:
B and C
Explanation:
Selective breeding is a procedure that involves the purposeful breeding of selected parents in order to give rise to offsprings with desired traits. Selective breeding procedure has its own advantages, which includes the ability to produce more animal products such as milk, meat etc, however, it has disadvantages.
The disadvantages include that:
- Selectively bred animals are more likely to have some health problem
- Some desirable traits become more common in a population.
The answer for the following question is explained below.
- <u><em>Therefore the temperature that is require to fill the gas is 254.3 K</em></u>
Explanation:
Given:
no of moles (n) = 3.67 moles
volume of the gas (V) = 67.5 liters
pressure of the gas (P) = 115 k Pa
To solve:
Temperature of the gas (T)
We know;
<u>P × V = n × R × T</u>
<em>Where;</em>
P is pressure of the gas
V is the volume of the gas
n is the no of the moles
R is the universal gas constant
here the value of R(universal gas constant ) is 8.314 k Pa./mole.K
We know;
115 × 67.5 = 3.67 × 8.3145 × T
T =
T =
T = 254.39 K
<u><em>Therefore the temperature that is require to fill the gas is 254.3 K</em></u>