mol=35:101.11 g/mol=0.346
formula units = 0.346 x 6.02 x 10²³ = 2.082 x 10²³
Answer:
ponge is a solid yet we able to compress it because it has holes in it. When we compress the sponge the air goes out of those pores.
Explanation:
Taking into account the definition of density, the density of the metal is 16.33
.
<h3>Definition of density</h3>
Density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.
<h3>Density of the metal in this case</h3>
In this case, you know that:
- Mass= 34.3 g
- Volume= 2.1 mL
Replacing in the definition of density:

Solving:
<u><em>density= 16.33 </em></u>
In summary, the density of the metal is 16.33
.
Learn more about density:
<u>brainly.com/question/952755?referrer=searchResults</u>
<u>brainly.com/question/1462554?referrer=searchResults</u>
Answer: 40.5 mol
Explanation:
Since this is a double replacement reaction, the unbalanced equation is something like follows:

Balancing this equation,

From this equation, we can conclude that for every 3 moles of sodium hydroxide consumed, 1 mole of potassium phosphate is consumed.
This means the answer is 13.5(3)=<u>40.5 mol</u>