1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solniwko [45]
2 years ago
10

what is the new concentration of A if 7.7 ml of a .10 M solution of A is mixed with 18.3 mL of .20 M solution B and an additiona

l 11.7 ml water?
Chemistry
1 answer:
Elenna [48]2 years ago
4 0

Answer:

0.12 M

Explanation:

To find the new concentration, you need to (1) find the moles of Solution A (via the molarity equation), then (2) find the moles of Solution B, then (3) combine all of the moles and volumes, and then (4) calculate the new molarity. The final answer should have 2 sig figs to reflect the lowest amount of sig figs in the given values.

<u>Solution A:</u>

7.7 mL / 1,000 = 0.0077 L

Molarity = moles / volume

0.10 M = moles / 0.0077 L

0.00077 = moles

<u>Solution B:</u>

18.3 mL / 1,000 = 0.0183 L

Molarity = moles / volume

0.20 M = moles / 0.0183 L

0.00366 = moles

<u>New Solution:</u>

11.7 mL / 1,000 = 0.0117 L

New Volume = 0.0077 L + 0.0183 L + 0.0117 L

New Volume = 0.0377 L

New Moles = 0.00077 moles + 0.00366 moles

New Moles = 0.00443 moles

Molarity = moles / volume

Molarity = 0.0043 moles / 0.0377 L

Molarity = 0.1175 M = 0.12 M

You might be interested in
When sunlight passes through a prism, the different wavelengths separate into a(n)________ of colors.
Masteriza [31]
When sunlight passes through a prism, the different wavelengths separate into a spectrum of colors.
7 0
3 years ago
Read 2 more answers
What is the wavelength range,in nanometer,for infrared light? In what portion of this range does the earth receive IR from the s
andrezito [222]
  • The wavelength range of Infrared radiation is 700 nanometers to 1 millimeter.
  • The sun emits mainly near-infrared which is mainly composed of wavelength below 4 micrometers.
  • The thermal range of infrared ranges between wavelengths 3.5 and 2.0 micrometers

Explanation:

The wavelength range of Infrared radiation is 700 nanometers to 1 millimeter. This also translates to a frequency range of 430 TeraHertz  to 300 Giga Hertz.

Because the sun is a star and is hot in comparison to earth and other planetary bodies, the bigger  range of infrared radiation it emits is in the near-infrared which is mainly composed of wavelength below 4 micrometers.

The earth's surface produces infrared radiation of the mid-infrared range while cooler substances will produce far-infrared range

The thermal range of infrared ranges between wavelengths 3.5 and 2.0 micrometers and is produced by black bodies.

Learn More:

For more on infrared radiation check out;

brainly.com/question/2369243

#LearnWithBrainly

7 0
3 years ago
A balloon is floating around outside your window. The temperature outside is 21 ∘C , and the air pressure is 0.700 atm . Your ne
Andreyy89

Answer:

V=162L

Explanation:

Hello,

In this case, we can compute the required volume by using the ideal gas equation as shown below:

PV=nRT

Thus, solving for the volume and considering absolute temperature (in Kelvins), we obtain:

V=\frac{nRT}{P}= \frac{4.70mol*0.082\frac{atm*L}{mol*K}*(21+273)K}{0.700atm} \\\\V=162L

Best regards.

4 0
3 years ago
For a solar eclipse to occur which of the following alignments is necessary? A. The moon is located along a straight line betwee
Aloiza [94]

For a solar eclipse t occur;

C. The moon is located from a line between the sun and earth

8 0
3 years ago
The mode of 12, 17, 16, 14, 13, 16, 11, 14,13, 16 is​
RUDIKE [14]

Answer:

<h2>Mean = 14.2</h2><h2>Median = 14</h2><h2>Mode = 16</h2><h2>Range = 6</h2>

Explanation:

__________________________________________________________

<em>Mean = 14.2 or 14</em>

<em>Median = 14</em>

<em>Mode = 16</em>

<em>Range = 6</em>

<em>__________________________________________________________</em>

<em>Here are all the numbers from least to greatest order: 11, 12, 13, 13, 14, 14, 16, 16, 16, 17.</em>

<em>__________________________________________________________</em>

<em>Hope this helps! <3</em>

<em>__________________________________________________________</em>

8 0
3 years ago
Other questions:
  • Write the complete balanced equation for the following reaction:
    11·1 answer
  • What is an isotope? a. A form of an element with a different number of electrons c. A form of an atom with a different amount of
    9·1 answer
  • Explain equilibrium based on collision theory.​
    10·1 answer
  • What is significant about the elements within the same group of the periodic table?
    14·1 answer
  • The process that converts light energy from the sun to chemical energy stored in glucose is called
    14·1 answer
  • Plz help if you can!!!
    8·1 answer
  • What properties do metalloids have?
    6·1 answer
  • 3. Match each of the following descriptions with one of the beakers in Model 1. In each case, assume the change in volume as the
    11·1 answer
  • when magnesium is burned in air the mass of the product is greater than the mass of the solid magnesium burned. A student claims
    11·2 answers
  • Convert molecules of vitamin d (molar mass 384.7 g/mol) to grams of vitamin d.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!