All categories

3 years ago

A nonaqueous solution has a solvent that is not water. Which is an example of a nonaqueous solution?

Chemistry

1 answer:

Tom [10]3 years ago

5 0

Answer:

Tincture o iodine.

Explanation:

If a solute is dissolved in a solution that is not water for example, alcohol, ether, carbon disulphide, Carbon tetrachloride and many other carbon based liquids, the resulting solution is classified as a non aqueous solution.

An example of such a solution is tincture of iodine made by dissolving in 1 liter alcohol.

The molarity of iodine is approximately 0.53M

The solution is largely used as a sore disinfectant.

You might be interested in

Can someone help me pls

Inessa [10]

Answer:

The heat would flow from the hot solid to the cool solid until all temperatures are near equal.

4 0

3 years ago

There is a 30 g sample of Be-11. It has a half-life of about 14 seconds.How much will be left after 28 seconds?A.3.75 gB.7.5 gC.

pshichka [43]

Answer:

After 28 sec 7.5 grams of Be will be left

Explanation:

Given data:

Total amount of Be = 30 g

Half life of Be = 14 sec

Mass left after 28 sec = ?

Solution:

First of all we will calculate the number of half lives in 28 sec.

Number of half lives = T elapsed / half life

Number of half lives = 28 sec / 14 sec

Number of half lives = 2

AT time zero = 30 g

At first half life = 30 g/2 = 15 g

At second half life = 15 g/ 2 = 7.5 g

So after 28 sec 7.5 grams of Be will be left.

5 0

4 years ago

What trend does the electronegativity have on the periodic table?

jolli1 [7]

Electronegativity increases as you move up the periodic table.
Electronegativity increases as you move across the periodic table from left to right.

7 0

3 years ago

11.Suppose you have the most abundant isotope of gold (Au). How many neutrons would it have?

Rus_ich [418]

Neutrons = 118

<h3>Further explanation </h3>

The elements in nature have several types of isotopes

Isotopes are elements that have the same Atomic Number (Proton)

Atomic mass is <em>the average atomic mass of all its isotopes </em>

The most abundant isotope of gold (Au) is isotope Au-197

So the atomic mass of Au = 197

and the atomic number of Au = 79

Atomic mass is the sum of protons and neutrons

Atomic Number (Z) = Atomic mass (A) - Neutrons

Neutrons = A - Z

So neutrons for Au-197 :

$\tt neutrons=197-79=118$

6 0

3 years ago

What is the molarity of a solution that contains 0.500 mole of kno3 dissolved in 0.500-liter of solution?

belka [17]

Answer : The molarity of solution is, 1.00 M

Explanation : Given,

Moles of $KNO_3$ = 0.500 mol

Volume of solution = 0.500 L

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

$\text{Molarity}=\frac{\text{Moles of }KNO_3}{\text{Volume of solution (in L)}}$

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

$\text{Molarity}=\frac{0.500mol}{0.500L}=1.00mole/L=1.00M$

Therefore, the molarity of solution is, 1.00 M

7 0

3 years ago