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ladessa [460]
3 years ago
7

Plz say if it is a b c or d on both

Chemistry
2 answers:
Oduvanchick [21]3 years ago
8 0
What’s the question?
Digiron [165]3 years ago
7 0

Answer:

whats both

Explanation:

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A 0.98 M solution of calcium chloride with a volume of 0.25 L is diluted to form a 0.74 M solution. What is the new volume of th
tankabanditka [31]

The new volume of the dilute solution is 0.33 L.

<u>Explanation:</u>

Using the law of Volumetric analysis, we can find the volume of the dilute solution from the stock solution or the concentrated solution of Calcium Chloride.

V1M1 = V2M2

V1 be the volume of the stock solution = 0.25 L

M1 being the molarity of the stock solution = 0.98 M

V2 be the volume of the dilute solution = ?

M2 being the molarity of the dilute solution = 0.74 M

We have to rearrange the above equation to find V2 as,

V2 = $\frac{V1M1}{M2}

Now plugin the values as,

V2 = $\frac{0.25 L \times 0.98 M }{0.74 M}

   = 0.33 L

So the new volume of the dilute solution is 0.33 L.

3 0
3 years ago
How many protons, electrons, and neutrons does an atom with atomic number
sergey [27]

Answer:

protons : 10

electron : 10

neutron : 10

Explanation:

Protons will usually be the same as the electrons when its a <u>Atom</u> (when its a ion or covalent bond or simple bond they will most likely be different)

the atomic number represents protons and electrons

the mass number - the atomic number = neutron

8 0
3 years ago
A 1.0 L sample of an aqueous solution contains 0.10 mol of NaCl and 0.10 mol of CaCl2. What is the minimum number of moles of Ag
Annette [7]

Answer:

The answer to your question is: 0.3 moles of AgNO₃

Explanation:

1.0 L sample

0.1 mol of NaCl

0.1 mol of CaCl₂

AgNO₃ = ? moles

Reactions

               NaCl + AgNO₃ ⇒ AgCl + NaNO₃

Then                1 NaCl mol ---------------  1 AgNO₃

                     0.1 mol           --------------    x

             x = 0.1 moles of AgNO₃ needed

             

              CaCl₂ + 2 AgNO₃ ⇒ 2 AgCl + Ca(NO₃)₂

Then                 1 mol of CaCl₂ ------------- 2 moles of AgNO₃

                       0.1 mol              -------------      x

            x = 0.2 moles of AgNO₃

Total moles of AgNO₃ = 0.1 + 0.2 = 0.3

5 0
3 years ago
5. The strength of a gravitational force between two objects depends on
Sophie [7]

Answer:

mass and distance

Explanation:

the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases

3 0
3 years ago
The strong crystal structure of an ionic compound is one of the main reasons why ionic compounds have a __________ melting point
charle [14.2K]

Answer:

high

Explanation:

because of the strong crystal structure mentioned in the question, ionic compounds require a higher level of heat to melt

8 0
4 years ago
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