Answer:
80.11 torr
Explanation:
Hello,
In this case, since the masses are equal, we could assume 1 gram for each gas, which result in the following moles:

Thus, the molar fractions:

Thus, the total pressure is:

Hence the pressure of methane:

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Answer:
Gold is much heavier than lead. It is very dense. Another rather simple way to think of this is that if the density of water is 1 g/cc then the density of gold is 19.3 times greater than water. Water weighs about 8.3 pounds per gallon.
Explanation:
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Answer:
Metallic.
Explanation:
Hello,
In this case, when nickel and tin bond, the difference in their electronegativities results:

Such difference, in addition to the fact that nickel is a transition metal and tin a metal, will suggest that the predominant type of bond for this substance is metallic as the attractive force between the conduction of electrons and positively charged metal ions is present.
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<span>A colloid can be detected by using the Tyndall effect. The correct option among all the options that are given in the question is the second option. The other choices are incorrect and can be easily neglected. I hope that this is the answer that you were looking for and the answer has actually come to your desired help.</span>
Answer:
The pH of the substance is 4,06.
Explanation:
The pH indicates the acidity or basicity of a substance. PH values between 0 and less than 7 indicate acidic solutions, 7 neutral and greater than 7 to 14 basic. It is calculated as:
pH = -log (H +)
pH= -log (8.8x10^-5)
<em>pH=4,06</em>