Which of the following mixtures would represent a proper buffer solution? A buffer solution should have approximately the same moles of a weak acid and its conjugate base (or a weak base and its conjugate acid) in a solution since the species will be at equilibrium (with Ka << 1, for instance) and the common-ion effect will be in place in order for the buffer to be effective. Group of answer choices

2.0 M hydrochloric acid & water

Sodium chloride & hydrochloric acid, 1.0 M each

Sodium sulfate & sulfuric acid, 1.0 M each

Sodium formate & formic acid, 0.1 M each

0.1 M sodium nitrate & water

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.