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Ugo [173]
2 years ago
10

What is a solution?

Chemistry
2 answers:
Shalnov [3]2 years ago
3 0
<span>A means of solving a problem or dealing with a difficult situation.

</span>
Leno4ka [110]2 years ago
3 0
It's a noun.
A means of solving a problem or dealing with a difficult situation
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Determina el pH del café cuya concentración de H+ es de 0.00001M
lara31 [8.8K]

Answer:

5

Explanation:

Given parameters:

Hydrogen ion concentration  =  0.00001M

Unknown:

pH of the solution =?

Solution:

The pH is used to estimate the degree of acidity or alkalinity of a solution. To solve for pH of any solution, we use the expression below;

          pH  = -log [H⁺]

[H⁺] is the hydrogen ion concentration

        pH  = -log (1 x 10⁻⁵)

      pH = -(-5) = 5

4 0
3 years ago
Determine the specific heat of copper from the fact that 38 g of 80°C copper are needed to raise the temperature of 15 g of wate
mars1129 [50]
From the equation q=mCΔT, set the q of copper = to q of water,

So --- mCΔT(copper)=mCΔT(water).

mass (Cu - copper) = 38g
mass (H2O - water) = 15g
C (H2O) = 4.184 J/g*C
ΔΤ (H2O) = 33-22 = 11*C
ΔΤ (Cu) = 33-80 = -47*C (the final temp is the same for both materials - thermal equilibrium)
C (Cu) = ?

So --- 38(-47)C[Cu]=15(4.184)(11)
     --- C[Cu]=690.36/(-1786) = 0.3865 J/g*C, or 0.39 in 2 sig figs. (The negative goes away, because specific heats are usually positive)
5 0
3 years ago
if a liquid is heated and the temperature at which it boils is measured, the ? property is being measured.
Serhud [2]
It would have to be physical property * if this helped you in anyway please be sure to leave a thanks:)
7 0
3 years ago
___ is the force on a dropped ball
poizon [28]

Answer:

gravity

Explanation:

the force is gravity that pulls the ball downward

4 0
3 years ago
Read 2 more answers
(I NEED THIS ANSWERED QUICKLY! I WILL GIVE BRAINLIEST IF YOU'RE ANSWER IS CORRECT! AND MAYBE EXTRA POINTS!)
MrRissso [65]

Answer:

C: object does not slide off the pan

Explanation:

6 0
2 years ago
Read 2 more answers
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