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expeople1 [14]
3 years ago
11

Samuel needs to dissolve a solid compound in water. what are some things samuel could do to cause this dissolution to occur at a

faster rate?
Chemistry
2 answers:
Marysya12 [62]3 years ago
6 0

Answer:

In order to make the dissolution of the solid compound in water to occur at a faster rate, Samuel could do the following: ... Increasing the temperature: Samuel could also increase the rate of dissolution of the substance by increasing the temperature of the water.

Explanation:

my names sam lol but i did the quiz, this is it man

ziro4ka [17]3 years ago
5 0
In order to make the dissolution of the solid compound in water to occur at a faster rate, Samuel could do the following:
1. Break down the solid into tiny particles: breaking down the solid into tiny particles increases the surface area of the solid and thus increase the quantity of the substance that comes in contact with the solvent per time, this leads to a faster dissolution of the solid.
2. Stir the liquid with iron rod: Samuel can increase the dissolution rate of the substance by stirring it continuously with iron rod.
3. Increasing the temperature:Samuel could also increase the rate of dissolution of the substance by increasing the temperature of the water. 
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Answer:

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Explanation:

Hope this helps

7 0
3 years ago
Which acid is the best choice to create a buffer with ph= 3.19?
Crazy boy [7]
<span>The best choice is hypochlorous acid nitrous acid (HNO2) because it has the nearest value of pK to the desired pH.
pKa of </span>nitrous acid<span> is 3.34 
If we know pKa and pH values,  we can calculate the required ratio of conjugate base (NO2⁻) to acid (HNO2) from the following equation:
pH=pKa + log(conc. of base)/( conc. of acid)
</span><span>3.19=3.34 + log c(NO2⁻)/c(HNO2)
</span><span>3.19 - 3.34 = log c(NO2⁻)/c(HNO2)
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5 0
4 years ago
What is the mass of a titanium alloy that has a heat of fusion of 422.5 joules/gram and requires 2,960 joules of energy to melt
romanna [79]

Answer:- Mass of the titanium alloy is 7.01 g, choice C is correct.

Solution:- The heat of fusion is given as 422.5 joules per gram and it also says that 2960 joules of heat is required to melt the metal completely.

The suggested equation is, Q=mH_f

where Q is the heat energy, m is the mass and Hf is the heat of fusion.

Since, we are asked to calculate the mass, the equation could be written as:

m=\frac{Q}{H_f}

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m=\frac{2960J}{\frac{422.5J}{g}}

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7 0
3 years ago
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rodikova [14]

Answer:

preoperational

Explanation:

7 0
3 years ago
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6 0
3 years ago
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