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Cloud [144]
3 years ago
10

I learned that ____is a substances used to dissolve a ______. Its is of the _____amount. There are substances that can be dissol

ved in the given solvent, it is called ______. While the materials that can't be dissolved is called_____.​
Chemistry
1 answer:
masya89 [10]3 years ago
8 0

Answer:

1 solute

2 soluble

3 smaller

4 solvent

5 Insolute

6 coffee

Yan po pa braininess nalang po

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Phosphoric acid is a triprotic acid ( K a1 = 6.9 × 10 − 3 , K a2 = 6.2 × 10 − 8 , and K a3 = 4.8 × 10 − 13 ). To find the pH of
timama [110]

Answer:

Ka2 values should be used in obtaining pKa2 in the Henderson–Hasselbalch equation

Explanation:

During first dissociation from H3PO4 to H2PO4-, ka1 will be used, and from H2PO4-to HPO4-, ka2 values will be used, hence a buffer solution containing H2PO4-and HPO4-will use ka2 in obtaining pKa2 in the Henderson–Hasselbalch equation.

7 0
4 years ago
Calculate the density of an object with a mass of 3.8 g, that when placed in a 10.0 mL graduated cylinder with an initial volume
Arturiano [62]

Answer : The density of an object is 0.93 g/mL

Explanation : Given,

Mass of an object = 3.8 g

Initial volume = 4.5 mL

Final volume = 8.6 mL

First we have to calculate the volume of an object.

Volume of an object = Final volume - Initial volume

Volume of an object = 8.6 mL - 4.5 mL

Volume of an object = 4.1 mL

Now we have to calculate the density of an object.

Formula used:

\text{Density}=\frac{\text{Mass of an object}}{\text{Volume of an object}}

Now putting all the given values in this formula, we get:

\text{Density}=\frac{3.8g}{4.1mL}

\text{Density}=0.93g/mL

Therefore, the density of an object is 0.93 g/mL

3 0
3 years ago
To produce an electric current, you need a continuous source of _________.
Liono4ka [1.6K]
Watts........ or potential diffrence
6 0
4 years ago
Read 2 more answers
Is mass conserved when 50 g of sugar undergoes a physical change? Use complete sentences to support your answer by explaining ho
Andrew [12]
It is not, because the mass is being conserved and not changed. 
A

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3 years ago
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How does a volcanic eruption affect the Earth's atmosphere? A) Eruptions shoot out ash and poisonous gases into the air. B) The
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Answer:

A

Explanation:

7 0
3 years ago
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