If you dilute 16.0 ml of the stock solution to a final volume of 0.310 l , what will be the concentration of the diluted solution

Assume that the concentration of stock is 1.0 M

And initial volume = 16.0 ml  

final volume = 0.310 L or 310 ml

therefore  

CiVi  = CfVf

1.0*16 ml = Cf * 310 ml

Cf = 1.0*16/310

= 0.052 M

Thus dilute solution  is 0.052 M times dilute to concentrate solution  

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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