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Vera_Pavlovna [14]

2 years ago

6

For practice, the molecular formula for ascorbic acid is C6H8O6, and you used 6 g in this experiment, calculate the molarity of

the ascorbic acid. Now calculate the concentration in moles per drop (assume 1 mL = 20 drops)

2 answers:

spin [16.1K]2 years ago

8 0

6mL is the answer i just looked it up

deff fn [24]2 years ago

4 0

Answer:

6ml just did the project

Explanation:

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Tiny sacs in the lungs where gas exchange takes place are called ____?

SSSSS [86.1K]

Answer:

Alveoli

Explanation:

I hope this helps you.

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2 years ago

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N2 + 3H2 = 2NH3

My name is Ann [436]

This is so basic bro u gotta first move

6 0

3 years ago

Hello! Id like if someone could tell me this answer, thank you so much!

DaniilM [7]

Answer:

Option D. ZnCl₂ and H₂

Explanation:

From the question given above, the following equation was obtained:

2HCl + Zn —> ZnCl₂ + H₂

Products =?

In a chemical equation, reactants are located on the left side while products are located on the right side i.e

Reactants —> Products

Now, considering the equation from the question i.e

2HCl + Zn —> ZnCl₂ + H₂

The products are ZnCl₂ and H₂ because from our discussion above, we said that products are only located on the right side of chemical equation.

Thus, option D gives the correct answer to the question.

4 0

2 years ago

Zirconium has an atomic number of 40, And an atomic mass of 91. How many electrons does zirconium have?

Vedmedyk [2.9K]

Answer: 40

Explanation: Whatever the atomic number is, that’s also the number of electrons and protons.

3 0

2 years ago

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Sodas are not only full of sugar (124 grams/L), but they are also acidic and will dissolve your teeth, composed of hydroxyapatit

Naya [18.7K]

Answer:

The pH of the HCl solution is 3.9

Explanation:

Knowing the molar mass of HCl (36.5g/mol) it is possible to calculate the number of moles of HCl in the solution,

$\frac{1.5x10^{-3}g}{36.5g/mol} = 4.1x10^{-5}moles$ of HCl

HCl is a strong acid and when added to water will form H+ and Cl-, thus the moles of HCl are equal to moles of H+ in 354 mL of water

$\frac{4.1x10^{-5}moles }{354mL} x 1000= 1.16x10^{-4} M$

The concentration of protons in the solutions is $1.16x10^{-4} M$ .

The expression used to calculate the pH is

$pH = -Log ([H^{+}]) = -Log (1.16x10^{-4} M) = 3.9$

Hence, the pH of the HCl solution is 3.9 and Pepsi has a pH of 3.4 approximately, so they have almost the same pH.

3 0

2 years ago