Ask question

Ask question

All categories

2 years ago

13

How do you determine how much alum can be dissolved in 10 ml of hot deionized water to make a saturated solution??

1 answer:

xeze [42]2 years ago

3 0

You need to monitor the solution to see when the crystals start gathering at the bottom of the solution. You can slowly add alum until it stops dissolving. The point just before it starts its sedimentation at the bottom is the point when the solution is saturated.

You might be interested in

White vinegar is a 5.0% by mass solution of acetic acid in water. If the density of white

Alex_Xolod [135]

The pH = 2.41

<h3>Further explanation</h3>

Given

5.0% by mass solution of acetic acid

the density of white vinegar is 1.007 g/cm3

Required

pH

Solution

Molarity of solution :

$\tt M=\dfrac{\%mass\times \rho\times 10}{MW~acetic~acid}\\\\M=\dfrac{5\times 1.007\times 10}{60}\\\\M=0.839$

Ka for acetic acid = 1.8 x 10⁻⁵

[H⁺] for weak acid :

$\tt [H^+]=\sqrt{Ka.M}$

Input the value :

$\tt [H^+]=\sqrt{1.8\times 10^{-5}\times 0.839}\\\\(H^+]=0.00388=3.88\times 10^{-3}\\\\pH=3-log~3.88=2.41$

7 0

2 years ago

Scientific knowledge results from the interaction of scientists who are investigating natural phenomena. Which of these BEST des

seraphim [82]

Answer:

5ywhxhghghghfhffgffgffg

Explanation:

6 0

2 years ago

The ions in most ionic compounds are organized into a

Igoryamba

They are organized into crystals hope i helped

5 0

2 years ago

Explain why chemistry affects all aspects of life and most natural events

Alecsey [184]

Chemistry affects all aspects of life and most natural events because all living and nonliving things are made of matter.

6 0

3 years ago

List three things that rely on the Sun as the major source of energy

valkas [14]

Answer:

Three things that rely on the sun for energy is coal,oil, and natural gases

Explanation:

We use engery too cook our food that's an example of how gases are used.

We run our cars .Cars use oil.

And we use electricity for lights. You need coal for the electricity

6 0

2 years ago

Read 2 more answers