Explanation:
21 % of oxygen is present in air .
hope it is helpful to you
I believe the answer is .87g/mL. But I'm not sure so whatevs
As per the Equation,
Acceleration = Force/Mass
We Can Conclude That,
Acceleration of an object is affected by A). Net Force Acting On the Object and C). Object's Mass.
!! Hope It Helps !!
Answer:
No
Explanation:
The mass fraction is defined as:
where:
- wi: mass fraction of the substance i
- mi: mass of the substance i
- mt: total mass of the system
<u><em>The mass fraction of two substances (A and B), will be the same, ONLY if the mass of the substance A (mA) is the same as the mass of the substance B (mB).</em></u>
An equimolar mixutre of O2 and N2 has the same amount of moles of oxygen and nitrogen, just to give an example let's say that the system has 1 mole of O2 and 1 mole of N2. Then using the molecuar weigth of each of them we can calculate the mass:
mA= 1 mole of O2 * 16 g/1mol = 16 g
mB=1 mole of N2 *28 g/1mol=28 g
As mA≠mB then the mass fractions are not equal, so the answear is NO.
Then the resultant solution is basic.
<h3>What is basic solution?</h3>
An aqueous solution that has more OH-ions than H+ions is referred to be a basic solution. It is an aqueous solution with a pH higher than 7, in other words. Ions are present in basic solutions, which also conduct electricity, color blue on red litmus paper and are slick to the touch.
The scale ranges from zero (the most acidic) to fourteen (the most basic). Pure water has a pH value of 7, as can be seen from the pH scale above. Since it is neither acidic nor basic, this value is thought to be neutral.
Potassium hydroxide (KOH), Sodium hydroxide (NaOH), Caesium hydroxide (CsOH), Strontium hydroxide (Sr(OH)2), and Lithium hydroxide are some typical strong Arrhenius bases.
To learn more about basic solution from the given link:
brainly.com/question/3595168
#SPJ4
