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
Lubov Fominskaja [6]
3 years ago
13

What is the molarity of solution prepared by dissolving 11.75 g of KNO3 in enough water to produce 2.00 L of solution?

Chemistry
1 answer:
zysi [14]3 years ago
3 0
The molar mass of the compound potassium nitrate, KNO3 is equal to 101.1032 g/mol. Then, we determine the number of moles present in the given amount,
                       n = 11.75g / (101.1032 g/mol) = 0.116 mol
Then, molarity is calculated by dividing the number of moles by the volume of the solution. The answer is therefore 0.058 M. 
You might be interested in
5.
kati45 [8]

Answer:

1. separating funnel

2. strainer

3. Simple distillation 

4. Fractional distillation

5.process of sublimation

Explanation:

pls mark brainliest!

5 0
3 years ago
Please help and hurry! I'll give brainliest
jonny [76]

Answer:

hi this it for the Instructions: In this engineering lab, you will build and test a device that releases and absorbs

thermal energy in order to reach a goal. You will need to repeat tests of your device to make sure it

does not need to be redesigned or improved. Record your observations and test measurements in

the lab report below. You will submit your completed report. yea that thing the answer is in the file

Explanation:

sorry for telling you on this :( but i hope this helps

Download docx
7 0
3 years ago
Read 2 more answers
If you burn 55.6 g of hydrogen and produce 497 g of water, how much oxygen reacted?
tester [92]

Answer:

441.28 g Oxygen

Explanation:

  • The combustion of hydrogen gives water as the product.
  • The equation for the reaction is;

2H₂(g) + O₂(g) → 2H₂O(l)

Mass of hydrogen = 55.6 g

Number of moles of hydrogen

Moles = Mass/Molar mass

          = 55.6 g ÷ 2.016 g/mol

          = 27.8 moles

The mole ratio of Hydrogen to Oxygen is 2:1

Therefore;

Number of moles of oxygen = 27.5794 moles ÷ 2

                                               = 13.790 moles

Mass of oxygen gas will therefore be;

Mass = Number of moles × Molar mass

Molar mass of oxygen gas is 32 g/mol

Mass = 13.790 moles × 32 g/mol

<h3>          = 441.28 g</h3><h3>Alternatively:</h3>

Mass of hydrogen + mass of oxygen = Mass of water

Therefore;

Mass of oxygen = Mass of water - mass of hydrogen

                          = 497 g - 55.6 g

<h3>                           = 441.4 g </h3>
6 0
4 years ago
Read 2 more answers
Which property is true for metals?
Aleks04 [339]
They're malleable and have high melting and boiling points
8 0
3 years ago
Astronauts go to live on the International Space Station for a period of ________ month(s). A one B three C six D nine
kumpel [21]

Answer:

The answer is C. six months

Explanation:

I hope this helps you bestie:))

3 0
3 years ago
Other questions:
  • Which balanced equation represents a redox reaction? a. AgNO3(aq) +NaCl(aq) →AgCl(s) +NaNO3(aq) b. H2CO3(aq) →H2O() + CO2(g) c.
    12·1 answer
  • Under what conditions will deviations from the "ideal" gas be expected?
    6·1 answer
  • !!!HELP ASAP!!! According to Le Châtelier's principle, how will a pressure increase affect a
    7·1 answer
  • Help me on this pleaseeee
    9·1 answer
  • An acid is a substance that produces hydrogen ions in a water solution true or false
    10·2 answers
  • HELP PLS ILL GIVE BRAINLIEST AND 40 POINTS!!!
    13·1 answer
  • In dry climates, people often dig wells to find additional sources of water
    9·2 answers
  • What is energy, what is power, and how are they related?
    5·2 answers
  • BRAINLIEST TO FIRST RIGHT ANSWER
    12·1 answer
  • 4) What is the density of a metal block that has a mass of 270 grams and has a length of 5 cm, width of 3
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!