What does pH measure?

Chemistry

2 answers:

Bingel [31]3 years ago

8 0

Number three is the right answer!

Cerrena [4.2K]3 years ago

7 0

Answer:

Number 3,Concentration of hydrogen ions in solution.

Brainliest would be appreciated :))

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Given: 2LiBr + I2 → 2LiI + Br2 Calculate the mass of bromine produced when 9.033 × 1023 particles of iodine (I2) react completel

Llana [10]

Answer:

239.7 g

Explanation:

Step 1: Write the balanced equation

2 LiBr + I₂ → 2 LiI + Br₂

Step 2: Convert the molecules of iodine to moles

We have 9.033 × 10²³ particles (molecules) of iodine. In order to convert molecules to moles, we will use the Avogadro's number: there are 6.022 × 10²³ molecules of iodine in 1 mole of iodine.

$9.033 \times 10^{23}molecule \times \frac{1mol}{6.022 \times 10^{23}molecule} =1.500mol$

Step 3: Calculate the moles of bromine produced

The molar ratio of I₂ to Br₂ is 1:1. Then, the moles of bromine produced are 1.500 moles.

Step 4: Calculate the mass of bromine

The molar mass of bromine is 159.81 g/mol. The mass corresponding to 1.500 moles is:

$1.500mol \times \frac{159.81g}{mol} = 239.7 g$

7 0

3 years ago

The atomic mass and abundance of Cr-50 is 49.946 amu and 4.3%. The atomic mass and abundance of Cr-52 is 51.941 amu and 83.8%. T

Sati [7]

Multiply the mass by the abundance and add each. Make sure to convert the percentage into a decimal. (49.946 * .043) + (51.941 * .838) + (52.941 * .095) + (53.939 * .024) = 51.99 round up using sig figs and the answer is c. 52.00 amu

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2 years ago

What do you think would happen if you had a very small amount of water in a glass and you

Ipatiy [6.2K]

If it was warn - hot water, i would say yes

the warm - hot water would dissolve because of the temperature

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2 years ago

What is the total volume occupied by 132 g of CO2 at STP

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2 years ago