The pH of a buffer solution : 4.3
<h3>Further explanation</h3>Given
0.2 mole HCNO
0.8 mole NaCNO
1 L solution
Required
pH buffer
Solution
Acid buffer solutions consist of weak acids HCNO and their salts NaCNO.
valence according to the amount of salt anion
Input the value :
Total number of atoms in the sample is the sum of number of atoms of all the elements present in the sample.
Number of gold, atoms in
=
atoms (given)
From the formula of compound that is it is clear that the number of potassium and gold are same whereas those of carbon and nitrogen are 2 times of them.
So, the number of atoms of each element is:
Number of potassium, atoms in
=
atoms
Number of carbon, atoms in
=
atoms =
Number of nitrogen, atoms in
=
atoms =
Total number of atoms in = Number of gold,
atoms+Number of potassium,
atoms +Number of carbon,
atoms + Number of nitrogen,
atoms
Total number of atoms in =
Total number of atoms in =
atoms
Hence, the total number of atoms in is
atoms.
Answer:
Explanation:
Given the amount of heat absorbed and the amount of substance in moles, we may calculate the heat of vaporization. Heat of vaporization is defined as the amount of heat per 1 mole of substance required to evaporate that specific substance.
Based on the value of heat of vaporization, we will identify the substance. Firstly, let's calculate the heat of vaporization:
Secondly, let's use any table for heat of vaporization values for substances. We identify that the heat of vaporization of is 18.7 kJ/mol