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gulaghasi [49]
3 years ago
11

What is the pH of a solution of H2SO that has (H3O+) = 5.45 x 10^-5 M?

Chemistry
2 answers:
Whitepunk [10]3 years ago
7 0
Answer is =4.26 I thinkk
Serggg [28]3 years ago
6 0
B fncndhjrgzhzbbzhdhhd
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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

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An atom has 20 electrons. Find out
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it's atomic number is 5 and total number is 10

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Which is a property of a base? (Chemistry test need help please)
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The answer is C . Watery feel
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If one body is positively charged and another one is negatively charged free electrons tend to ?
lord [1]

Answer is: Move from the negatively charged body to the positively charged body.

The electron (symbol: e⁻) is a subatomic particle whose electric charge is negative one elementary charge.

The proton (p⁺) is subatomic particle with a positive electric charge of +1e elementary charge.

Opposite charges (positive and negative) attract one another.  

The negatively charged body has extra electrons, more electrons than protons.

The positively charged body has less electrons than protons.

5 0
4 years ago
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How many additional grams of KOH are required to increase the concentration of the solution to 0.500 m? G
katen-ka-za [31]

Answer:

21.9g

Explanation:

This is the answer if you are on edginuity,

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