What describes how much of a substance has been dissolved into another substance and is usually expressed in a ratio or percent?

Chemistry

1 answer:

gregori [183]2 years ago

7 0

<h3>Answer: <u><em>It's A Hope this helps </em></u></h3>

<h3>Explanation: </h3><h3><u><em>Well this answer was a bit tricky well A and B were like the same definition and thinking A but C and D were both wrong </em></u></h3><h3><u><em /></u></h3>

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The word weather is most commonly used to refer to the state of the atmosphere at a certain time. Why do you think the same word

s344n2d4d5 [400]

<span> weather is the condition of the climate in a particular place at a particular
time.</span>

3 0

2 years ago

How many grams of sodium phosphate are formed by the reaction of 10 g of sodium with phosphoric acid?

Norma-Jean [14]

Answer:

23.8g of sodium phosphate are formed

Explanation:

Based on the reaction of sodium, Na, with phosphoric acid, H₃PO₄:

3Na + H₃PO₄ → Na₃PO₄ + 3/2 H₂

<em>3 moles of sodium produce 1 mole of sodium phosphate</em>

<em />

To solve this question we must find the moles of sodium in 10g. Using the chemical reaction we can find the moles -And the mass- of sodium phosphate produced, as follows:

<em>Moles Na -Molar mass: 22.99g/mol-</em>

10g * (1mol / 22.99g) = 0.435 moles Na

<em>Moles Na₃PO₄:</em>

0.435 moles Na * (1mol Na₃PO₄ / 3mol Na) = 0.145 moles Na₃PO₄

<em>Mass Na₃PO₄ -Molar mass: 163.94g/mol-</em>

0.145 moles Na₃PO₄ * (163.94g/mol) =

<h3>23.8g of sodium phosphate are formed</h3>

8 0

1 year ago

Molecules are likely to dissolve in nonpolar solvents.

masha68 [24]

The answer to this is yes they are likely, true.

4 0

2 years ago

What is the chemical formula for monosaccharides?

goldfiish [28.3K]

Since monosaccharides are the simplest units of carbohydrates, then they are made up of carbon, hydrogen, and oxygen atoms.

empirical formula : CxH2xOx
where
$x \geqslant 3$
Monosaccharides can be classified by the number x of carbon atoms they contain: triose(3) tetrose (4), pentose (5), hexose (6), heptose (7), and so on.

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2 years ago

Determine the change in volume that takes place when a 3.25-L sample of N2(g) is heated from 250.0 K to 406.8 K. Enter your answ

alexgriva [62]

<u>Answer:</u> The change in volume is 2.05 L

<u>Explanation:</u>

To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$