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
Verizon [17]
3 years ago
11

What quantity of potassium phosphate, in grams, is required to prepare 500.0 ml of solution where you the concentration of potas

sium is 0.100 M.
I did this problem and I got 10.6 grams but my computer says I did wrong. what steps am I missing. I'm confused now because I converted potassium to potassium phosphate.
​
Chemistry
1 answer:
Readme [11.4K]3 years ago
3 0

Answer: 3.54

Explanation:

You're forgetting to divide by 3 for the 3 moles of potassium that are in potassium phosphate.

Potassium Phosphate= K3PO4

You might be interested in
If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form
tigry1 [53]

Answer:

709 g  

Step-by-step explanation:

a) Balanced equation

Normally, we would need a balanced chemical equation.

However, we can get by with a partial equation, as log as carbon atoms are balanced.

We know we will need an equation with masses and molar masses, so let’s <em>gather all the information</em> in one place.  

M_r:    30.07          236.74

           C₂H₆ + … ⟶ C₂Cl₆ + …  

m/g:    90.0

(i) Calculate the moles of C₂H₆

n = 90.0 g C₂H₆  × (1 mol C₂H₆ /30.07 g C₂H₆)

  = 2.993 mol C₂H₆

(ii) Calculate the moles of C₂Cl₆

The molar ratio is (1 mol C₂Cl₆/1 mol C₂H₆)

n = 2.993 mol C₂H₆ × (1 mol C₂Cl₆/1 mol C₂H₆)

  = 2.993 mol C₂Cl₆

(iii) Calculate the mass of C₂Cl₆

m = 2.993 mol C₂Cl₆ × (236.74 g C₂Cl₆/1 mol C₂Cl₆)

m = 709 g C₂Cl₆

The reaction produces 709 g C₂Cl₆.

6 0
3 years ago
______________ is a durable material and is widely used for casting, which is a process by which the melted material is poured i
podryga [215]

The material that has been widely used in casting has been copper. Thus, option C is correct.

Casting has been the process of molding the liquid into a specific shape with the mold. The casting involves the heating of elements and converting them into liquid. The liquid has been poured into the mold and cooling results in the casted material.

The casted material has been selected based on the boiling temperature, cooling temperature, resistivity, cost-effectiveness, and damping ability.

The material that has been consisted of these characteristics has been copper. Thus, copper has been commonly used for casting. Thus, option C is correct.

For more information about casting, refer to the link:

brainly.com/question/1253405

5 0
3 years ago
Read 2 more answers
Heat energy is transferred on Earth by the processes of convection, conduction, and radiation. How does heat energy cause materi
lana66690 [7]
I think it will be D or B but my mine answer is D
5 0
3 years ago
What temperature scale do weather reporters in the United states use to tell you how hot it is outside?
mr Goodwill [35]
US uses the <span>Fahrenheit temperature scale.</span>
8 0
3 years ago
In the lewis structure of ch3oh, how many bonding pairs of electrons are there?
zysi [14]
Answer:
            There are five <span>bonding pairs of electrons in Methanol.

Explanation:
                   Those electron pairs which are being shared between two atoms in molecule are called as bonding pair electrons. While, those electron pairs which are not involved in bond formation and are not shared between two atoms are called as Non-Bonding electron pairs.
                   In molecule of Methanol as shown below, it can be seen that carbon atom is forming four bonds with three hydrogen atoms and one oxygen atom by sharing four electron pairs and oxygen is forming two bonds, one with carbon atom and one with hydrogen atom. There are two lone pair of electrons present on oxygen atom which are not taking part in and formation.</span>

8 0
4 years ago
Other questions:
  • How many milliliters of a 5.0 M H2SO4 stock solution would you need to prepare 101.5 mL of 0.17 M H2SO4?
    10·1 answer
  • When a water molecule forms a hydrogen bond with another water molecule, which atoms are involved in the interaction? *?
    15·1 answer
  • Explain the relationship between high and low <br> pressure.
    9·1 answer
  • Chromium-51 has a half life of 27.70 days. How much will be left after 166.2 days if
    10·1 answer
  • A compound has the formula c8h8 and does not contain any double or triple bonds. all the carbon atoms are chemically identical a
    5·1 answer
  • After conducting SDS-PAGE, you will conduct a staining/destaining procedure, which allows for visual identification of the prote
    12·1 answer
  • PLEASE HELP ITS URGENT!! How do I answer this? I will mark brainlist
    6·1 answer
  • What is the pH of a solution that has a concentration of 1 X 10-3 hydrogen ions?
    14·1 answer
  • The balanced equation for photosynthesis is shown below.
    12·1 answer
  • A lead apron is a ________________ instrument classification of disease transmission. Fill in the blank
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!