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
Naily [24]
3 years ago
15

A saturated solution of Ammonium Chloride is dissolved in 100 g of water.

Chemistry
1 answer:
faltersainse [42]3 years ago
5 0

Answer:

10 g

Explanation:

All we need is to read off the solubility curve attached to this answer. The solubility curve is a plot of solubility of a solute against temperature.

By reading off the solubility curve, we can know the mass of precipitate that crystallizes out as the solution is cooled from 50°C to 30°C.

From the solubility curve;

Mass of Ammonium Chloride  dissolved at 50°C = 50 g

Mass of Ammonium Chloride  dissolve at 30°C = 40 g

Hence;

Mass of precipitate formed = 50 g - 40 g

Mass of precipitate formed = 10 g

You might be interested in
ODIO POD
miss Akunina [59]

Answer:

\boxed{\text{40 mol Al}}

Explanation:

            Al₂O₃ ⟶ 2Al + 3O₂

n/mol:     20

\text{Moles of Al} = \text{20 mol Al$_{2}$O$_{3}$}\times \dfrac{\text{2 mol Al}}{\text{1 mol Al$_{2}$O$_{3}$}}= \textbf{40 mol Al}\\\text{You can produce }\boxed{\textbf{40 mol Al}}

8 0
3 years ago
What are the chemical formulas for..
andrezito [222]
S4O5
S3O
SeF6
N4S5
CCl9

All numbers should be subscripts
6 0
3 years ago
In chemistry what contains the smallest amount of matter
Agata [3.3K]
C. 2,500Dg Im pretty sure thats it
3 0
3 years ago
A serving of soup contains 5.0 g of fat, 20.0 g of carbohydrates, and 3.0 g of protein. Determine how many kilocalories (kcal) a
marta [7]

<u>Answer:</u> The amount of kilocalories contained in the given serving of soup is 0.137 kCal

<u>Explanation:</u>

<u>As per the USDA:</u>

Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.

We are given

Mass of fat in the soup serving = 5.0 g

Mass of carbohydrates in the soup serving = 20.0 g

Mass of protein in the soup serving = 3.0 g

Conversion factor used:  1 kCal = 1000 Cal

Applying unitary method:

  • <u>For Fat:</u>

1 gram of fat provides 9 calories

So, 5.0 gram of fat will provide = \frac{9}{1}\times 5.0=45Cal=0.045kCal

  • <u>For Carbohydrates:</u>

1 gram of carbohydrates provides 4 calories

So, 20.0 gram of carbohydrates will provide =\frac{4}{1}\times 20.0=80Cal=0.080kCal

  • <u>For Proteins:</u>

1 gram of proteins provides 4 calories

So, 3.0 gram of fat will provide = \frac{4}{1}\times 3=12Cal=0.012kCal

Total kilocalories per serving = [0.045 + 0.080 + 0.012] kCal = 0.137 kCal

Hence, the amount of kilocalories contained in the given serving of soup is 0.137 kCal

4 0
3 years ago
How can you tell one elements from another?
stepladder [879]
The protons in the atom determine what the atom is. It also determines the atomic number<span>. For example, hydrogen has one proton, so it the atomic number is one. Lithium has an atomic number of three because it has three protons.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • August kekule described the various ring structures of the carbon compound benzene. What type of chemist would he be considered
    15·2 answers
  • Which best represents the reaction of calcium and zinc carbonate (ZnCO3) to form calcium carbonate (CaCO3) and zinc? Ca → ZnCO3
    11·2 answers
  • Consider the following data concerning the equation: H2O2 + 3I– + 2H+ → I3– + 2H2O [H2O2] [I–] [H+] rate I 0.100 M 5.00 × 10–4 M
    10·1 answer
  • What substance is acting as the Brønsted-Lowry base in the forward reaction below? H2O + HCl yields H3O+ + Cl-
    14·1 answer
  • 6 Which substances have atoms of the same element but different molecular structures?
    10·1 answer
  • What is the electron configuration of a potassium ion when it has formed an ionic bond with a bromine ion?
    9·2 answers
  • Which element is a metalloid? Check all that apply. selenium (Se) polonium (Po) silicon (Si) iodine (I) tin (Sn) antimony (Sb) p
    8·2 answers
  • When a river flows over a cliff its
    8·2 answers
  • Which element is the least reactive? Neon, Chlorine, Gallium or Tin
    15·2 answers
  • Using the scientific method, design an experiment to test whether snow in Delaware makes better snowman than in New Jersey. Be s
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!