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BARSIC [14]
4 years ago
9

I need help with this :/

Chemistry
1 answer:
uranmaximum [27]4 years ago
6 0
Ok please tell me what exactly you need help with

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Why is the concentration of 1.34gvCuCl2 in a volumetric flask with approx. 100mL of water has a concentration of 0.050M?
jarptica [38.1K]
<h3>Answer:</h3>

Concentration will be 0.1 M and not 0.050M

<h3>Explanation:</h3>

This explains why the molarity is not 0.050 M but 0.1 M

Molarity is the concentration of a solution in moles per liter.

Therefore,

Molarity = moles ÷ Volume

In this case,

We have 1.34 g of CuCl₂ and a volume of 100 mL

To get the molarity we need to find the number of moles in 1.34 CuCl₂

Number of moles = Mass÷ molar mass

Molar mass of CuCl₂ = 134.45 g/mol

Therefore,

Moles of CuCl₂ = 1.34 g ÷ 134.45 g/mol

                         = 0.009965 moles

                         = 0.01 moles

Then we can calculate the molarity;

Molarity = Number of moles ÷ Volume

Volume of the solution is 100 mL or 0.1 L

Molarity = 0.01 moles ÷ 0.1 L

            = 0.1 M

Therefore, the concentration of 1.34 g CuCl₂ in a volume of 100 mL is 0.1 M and not 0.050M.

8 0
3 years ago
16. Mass = 10g
inessss [21]

Actual volume=Final Volume-initial volume

\\ \sf\longmapsto 50ml-30ml=20ml

Now

\\ \sf\longmapsto Density=\dfrac{Mass}{Volume}

\\ \sf\longmapsto Density=\dfrac{10}{20}

\\ \sf\longmapsto Density=2g/ml

3 0
3 years ago
Grade 11 chemistry what happen when n hexane is heated at 600 degree celcius in pressure of a cr2O3 catalyst?
Nonamiya [84]

Answer:

For Example, When n-Hexane Is Passed Over Chromium Oxide (Cr2O3) Supported Over Alumina (Al2O3) at 600 degree Celsius, Benzene Is Produced

8 0
2 years ago
I'm not sure about the process on how to calculate the molarity, please help me out!
azamat

Answer:

500mlg

Explanation:

please give a brainliest

8 0
3 years ago
Using a steel framework with masonry sheathing, the ________, designed by Louis Sullivan, is thought by many to be the first gen
ahrayia [7]

Answer:

Louis Sullivan designed Wainwright Building by using steel framework with masonry sheathing.

Explanation:

Louis Henry Sullivan is called as  'father of modernism' was an architect who build the Wainwright Building.

He took the idea from Marcus Vitruvius Pollio and used cast in iron or called terra cotta that contain vines and ivy that gives more geometric design.

Terra cotta is lighter and easy to use than stone masonry.

All of these materials are used in constructing Wainwright Building,Guaranty Building.

As he first invent to design the remarkable designs,he is called as father of American skyscraper

7 0
4 years ago
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