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Jobisdone [24]
3 years ago
10

What is the molarity of a solution containing 12.0 g of NaOH in 250.0 mL of solution?

Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
3 0

Answer:

1.196 M NaOH

Explanation:

Molarity = moles/Volume (L)

moles NaOH = mass NaOH/MM NaOH = 12/40.01 = 0.299 moles NaOH

Volume solution = 250 mL = 0.250L

M = 0.299/0.250=1.196 M NaOH

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LekaFEV [45]

Answer:

                                          Your answer would be (D

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3 0
3 years ago
Read 2 more answers
At which temperature do the molecules of an ideal gas have 3 times the kinetic energy they have at 32of?
algol [13]

Answer:

  • 820 K

Explanation:

As per Boltzman equation, <em>kinetic energy (KE)</em> is in direct relation to the <em>temperature</em>, measured in absolute scale Kelvin.

  • KE α T.

Then, <em>the temperature at which the molecules of an ideal gas have 3 times the kinetic energy they have at any given temperature will be </em><em>3 times</em><em> such temperature.</em>

So, you must just convert the given temperature, 32°F, to kelvin scale.

You can do that in two stages.

  • First, convert 32°F to °C. Since, 32°F is the freezing temperature of water, you may remember that is 0°C. You can also use the conversion formula: T (°C) = [T (°F) - 32] / 1.80

  • Second, convert 0°C to kelvin:

         T (K) = T(°C) + 273.15 K= 273.15 K

Then, <u>3 times</u> gives you: 3 × 273.15 K = 819.45 K

Since, 32°F has two significant figures, you must report your answer with the same number of significan figures. That is 820 K.

7 0
3 years ago
How many grams oxygen are present in 76.8g of CO2
katrin [286]
There would be 55.8 g present
8 0
3 years ago
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10 Points
slamgirl [31]

Answer:

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Explanation:

The indivisibility of an atom was proved wrong an atom can be further subdivided into protons, neutrons and electrons. However an atom is the smallest particle that takes part in chemical reactions......

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5 0
3 years ago
What is the name of the molecule below?
Lostsunrise [7]

The name of the molecule above is <u>Ethene</u>

<h3>What are organic compounds?</h3>

Organic compounds can be defined as compounds containing carbon and hydrogen.

Some classes of organic compounds are:

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  • Alkanols
  • Alkanals
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So therefore, he name of the molecule above is Ethene

Learn more about organic compounds:

brainly.com/question/704297

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3 0
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