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
djyliett [7]
1 year ago
6

If a 66.5 g sample of ammonium nitrate (NH4NO3) is dissolved in enough water to make 315 mL of solution, what will be the molari

ty (M)?
Chemistry
1 answer:
11111nata11111 [884]1 year ago
7 0

Answer:

2.64 M

Explanation:

To find the molarity, you need to (1) convert grams to moles (via molar mass), then (2) convert mL to L, and then (3) calculate the molarity (via molarity ratio). The final answer should have 3 sig figs to match the sigs figs of the given values.

(Step 1)

Molar Mass (NH₄NO₃): 2(14.007 g/mol) + 4(1.008 g/mol) + 3(15.998 g/mol)

Molar Mass (NH₄NO₃): 80.04 g/mol

66.5 grams NH₄NO₃                1 mole
---------------------------------  x  ----------------------  =  0.831 moles NH₄NO₃
                                             80.04 grams

(Step 2)

1,000 mL = 1 L

 315 mL                1 L
--------------  x  ------------------  =  0.315 L
                        1,000 mL

(Step 3)

Molarity = moles / volume

Molarity = 0.831 moles / 0.315 L

Molarity = 2.64 M

You might be interested in
Will mark as Brainliest.
stealth61 [152]
The answer you are looking for is A. If you need me to show you how I got the answer let me know. :)
3 0
2 years ago
10decimeter=<br><br> 10Decameter=
snow_lady [41]

Answer:

Explanation:

No, I don't owe nothing

Stop acting funny 5I've seen them running

Coming for more

4646

3 0
2 years ago
a sample of ammonia contains 9g hydrogen and 42g nitrogen. another sample contains 5g hydrogen .calculate the amount of nitrogen
balandron [24]
9 g of hydrogen - 42 g of nitrogen
5 g of hydrogen - x g of nitrogen

9x=42 \cdot 5 \\&#10;9x=210 \\&#10;x \approx 23.33

The mass of nitrogen in the second sample is 23.33 g.
4 0
3 years ago
Is the following nuclear equation balanced?<br> 237 Np - He+233 AM
Flura [38]

Answer:

Yes

Explanation:

Np²³⁷   →  He⁴ + Am²³³

The given nuclear equation is balanced. Np²³⁷ undergoes alpha decay and produce alpha particle and Am²³³.

Properties of alpha radiation:

Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number 4 less than and atomic number 2 less than the starting atom.

Alpha radiations can travel in a short distance.

These radiations can not penetrate into the skin or clothes.

These radiations can be harmful for the human if these are inhaled.

These radiations can be stopped by a piece of paper.

₉₂U²³⁸   →   ₉₀Th²³⁴  + ₂He⁴  + energy

6 0
2 years ago
Which of the following is true for the theoretical yield of a reaction? (1 point)
just olya [345]

Answer:

It is always twice the value of the actual yield.

Explanation:

3 0
2 years ago
Other questions:
  • How does the structure of amino acids allow them to form a polypeptide
    8·1 answer
  • Griffin was walking to school one day and found a old bone. He took it to a scientist friend of his, and after studying the bone
    8·1 answer
  • Help ASAP!<br> Answer the question and be made the Brainliest
    7·1 answer
  • How many copper atoms are in a pure copper statue with a mass of 142kg
    6·1 answer
  • Which of these bonds should be classified as ionic?
    10·2 answers
  • Lonic or Covalent? Fe2O3
    11·1 answer
  • To take liquid on a plane, they must be in a container with a maximum volume of 100ml select the item that cannot be taken on th
    6·1 answer
  • Fruit juice when boiled taste sweeter than sucrose because ​
    14·1 answer
  • When electrical ___ betweens protons is greater than strong forces, the nucleus will be unstable.
    9·1 answer
  • Write the following numbers in scientific notation.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!