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VladimirAG [237]
3 years ago
8

WILL MARK THE BRAINLEST

Chemistry
2 answers:
WITCHER [35]3 years ago
5 0
C I think but if I’m wrong I’m really sorry
alexdok [17]3 years ago
3 0

Answer:

a. Hh, hh

b. hh

c. 50%

d. 50%

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How many moles are in 98.3 grams of aluminum hydroxide
solong [7]

Answer:

1.260

Explanation:

7 0
3 years ago
Calculate the cell potential, Ecell, of a concentration cell containing a 0.1 M solution of Zn2 and a 1.0 M solution of Zn2
Agata [3.3K]

Answer:

The cell potential is 0.0296V

Explanation:

Please see the attachment below

3 0
3 years ago
An aqueous solution was prepared by dissolving 266.07 g of AgNO3 ( 169.88 g/mol) in enough water to make a total volume of 250.0
const2013 [10]

Answer:

The correct answer is 6.265 M.

Explanation:

To find the molarity of the solution, we first must recall that molarity represents the number of moles of solute divided by the number of liters of solution. Thus, our first step should be to convert the solute amount in grams to moles, using the given molar mass.

266.07 g * (1 mol/169.88 g) = 1.5662 mol

Now, we can find the molarity using the following formula:

Molarity = moles solute/liters solution

M = 1.5662 mol/0.25 L

M = 6.265 M

Therefore, the molarity of the solution is 6.265 M.

Hope this helps!

7 0
2 years ago
A sample of gallium bromide, GaBr3, weighing 0.165 g was dissolved in water and treated with silver nitrate, AgNO3, resulting in
melamori03 [73]

Answer:

%Ga by mass in sample of GaBr_{3} is 23.0%

Explanation:

Molar mass of AgBr = 187.77 g/mol

So, 0.299 g of AgBr = \frac{0.299}{187.77} moles of AgBr = \frac{0.299}{187.77} moles of Br = 0.00159 moles of Br

Br in AgBr comes from GaBr_{3}

So, there are 0.00159 moles of Br in 0.165 g of GaBr_{3}

Molar mass of Br = 79.904 g/mol

So, mass of Br in 0.165 g of GaBr_{3} = (0.00159\times 79.904)g = 0.127 g

So, mass of Ga in sample of GaBr_{3} = (0.165-0.127) g = 0.038 g

So, %Ga by mass in sample of GaBr_{3} = [(mass of Ga)/(mass of GaBr_{3})]\times 100%

                                                              = \frac{0.038}{0.165}\times 100 %

                                                              = 23.0%

8 0
3 years ago

Angelina_Jolie [31]

Answer:

GAUUUUUUUUUUUUUUUUUUUUUUUuR

Explanation:

4 0
3 years ago
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