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OLga [1]
2 years ago
15

All I need is the answer I don’t need any work shown, what is the pH= ?

Chemistry
1 answer:
jeka942 years ago
6 0
PH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. The pH of water is a very important measurement concerning water quality.
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hodyreva [135]
I believe it is 65.37.

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4 0
2 years ago
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A chemist adds of a calcium sulfate solution to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist has
Elanso [62]

The given question is incomplete. The complete question is:

A chemist adds 0.85 L of a 0.0050M calcium sulfate to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist has added to the flask. Round your answer to significant digits.

Answer: The mass in grams of calcium sulfate the chemist has added to the flask is 0.58 g

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n}{V_s}

where,

n = moles of solute

V_s = volume of solution in L

moles of CaSO_4 = \frac{\text {given mass}}{\text {Molar mass}}=\frac{xg}{136g/mol}

Now put all the given values in the formula of molarity, we get

0.0050=\frac{x}{136\times 0.85}

x=0.58 g

Therefore, the mass in grams of calcium sulfate the chemist has added to the flask is 0.58 g

7 0
2 years ago
The solid block shown below has a mass of 146 grams. THE DIMENSIONS OF THE BLOCK ARE- 3.0 cm by 4.5 cm by 7.0 cm. What is the bl
Amiraneli [1.4K]

Explanation:

D=m÷v

D=146÷(3×4.5×7)

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5 0
2 years ago
The mass of _____ molecule of a substance is called its molar mass.
Charra [1.4K]
<h2>Answer:</h2>

Hey,

<h3><u>QUESTION)</u></h3>

The mass of 6,022 × 10²³ molecules of a substance is called its molar mass.

  • In fact this number represents the Avogadro Constant characteristic of the number of entities contained in a mole.

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2 years ago
Are two atoms of the same element identical?
Rina8888 [55]

Answer:

No. They typically are not identical.

Explanation:

Atom's electrons can be in different states

4 0
2 years ago
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