The average acceleration is -5.0 m·s⁻².
The formula for acceleration (<em>a</em>) is
= 25 m·s⁻¹;
= 0;
= 5.0 s
∴ = -5.0 m·s⁻²
The negative sign tells you that the object is <em>slowing down</em>, i.e., it is <em>decelerating</em>.
Using the solubility curves, approximately how many grams of NaNO3 can be dissolved in 100. grams of water at 80 °C?
2 answers:
Answer:
As temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C .
You can determine how many grams of sodium chloride, commonly known as table salt, can be dissolved in
100 g
of water at
80
∘
C
by taking a look at its solubility graph.
A substance's solubility graph tells you how its solubility changes, let's say starting from room temperature, when temperature is either decreased or increased.
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