Explanation:
A pH helps us to determine whether a solution is basic or acidic in nature.
If pH is less than 7 then the substance or solution is acidic in nature and if pH is more than 7 then the substance or solution is basic in nature.
Also, acids are sour in taste whereas bases are bitter.
Thus, we can conclude that the bottle whose label have fallen off contains an acid and the pH of this liquid is MOST likely less than 7.
We have two unknowns for this problem. These are the amount of Ch4 and the amount of C2H6. We let these as x and y respectively. It should be that we generate two equation in order to solve this problem. We do as follows:
Equation 1:
x + y = 5
Equation 2
CO2 produced from CH4 + CO2 produced from C2H6 = 14.09
<span>x(44.01/16.05) + y(4)(44.01)/(2)(30.08) = 14.09
</span>2.74x +2.93y = 14.09
Solving simultaneously,
x = 2.95 g CH4
y= 2.05 g C2H6
The answer to this question is yes i think
We know, by law of constant proportion :
Chemical compounds always contains its component in constant fixed ratio or in fixed percentage without depend on its source, method of preparation and mass of compound.
Therefore, percentage of oxygen is same for any mass.
Hence, this is the required solution.
A stock solution is a solution of a known concentration. Stock solution has a high concentration and therefore, the known amount of stock solution is used for preparing different concentrations, by diluting the same with the known amount of the solvent being used, such as water.