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
Rina8888 [55]
3 years ago
5

If a particular ore contains 58.8 % calcium phosphate, what minimum mass of the ore must be processed to obtain 1.00 kg of phosp

horus?
Chemistry
1 answer:
Novosadov [1.4K]3 years ago
6 0
Ummmmmmmmmmmmmmmmm ore 58.8
You might be interested in
Which organelle's function is CORRECTLY described?
laiz [17]
The correct answer is c.
7 0
3 years ago
Read 2 more answers
Why does the nitrogen concentration decrease after hydrogen is added? n2(g)+3h2(g)⇌2nh3(g) why does the nitrogen concentration d
Leno4ka [110]

<span>The chemical reaction of a reversible reaction is actually governed by Le Chatelier’s principle. It states that when more reactants are introduced into the system, the reaction will proceed forward to create more products. So since Hydrogen is a reactant and Nitrogen is also reactant so adding more Hydrogen makes more products hence reducing the Nitrogen concentration.</span>

3 0
3 years ago
Find the pHpH of a solution prepared from 1.0 LL of a 0.15 MM solution of Ba(OH)2Ba(OH)2 and excess Zn(OH)2(s)Zn(OH)2(s). The Ks
charle [14.2K]

Answer:

pH  = 13.09

Explanation:

Zn(OH)2 --> Zn+2 + 2OH-   Ksp = 3X10^-15

Zn+2 + 4OH-   --> Zn(OH)4-2   Kf = 2X10^15

K = Ksp X Kf

  = 3*2*10^-15 * 10^15

  = 6

Concentration of OH⁻ = 2[Ba(OH)₂] = 2 * 0.15 = 3 M

                Zn(OH)₂ + 2OH⁻(aq)  --> Zn(OH)₄²⁻(aq)

Initial:           0             0.3                      0

Change:                      -2x                     +x

Equilibrium:               0.3 - 2x                 x

K = Zn(OH)₄²⁻/[OH⁻]²

6 = x/(0.3 - 2x)²  

6 = x/(0.3 -2x)(0.3 -2x)

6(0.09 -1.2x + 4x²) = x

0.54 - 7.2x + 24x² = x

24x² - 8.2x + 0.54 = 0

Upon solving as quadratic equation, we obtain;

x = 0.089

Therefore,

Concentration of (OH⁻) = 0.3 - 2x

                                    = 0.3 -(2*0.089)

                                  = 0.122

pOH = -log[OH⁻]

         = -log 0.122

          = 0.91

pH = 14-0.91

     = 13.09

4 0
3 years ago
What is the base dissociation constant for a weak base at equilibrium, B + H2O &lt;===&gt; BH+ + OH–?
podryga [215]
Depends on what the base is. You would reference the base dissociation chart for that value.
3 0
3 years ago
Read 2 more answers
What is the relationship between radius and diameter
Mrrafil [7]

Answer:

the radius is half the diameter

6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the voltage of a cell with half-reactions Zn(s) = Zn2+ + 2e-
    12·1 answer
  • Which of these statements best explains why pure water has a pH of 7? Pure water contains only H2O molecules, but pH is based on
    9·2 answers
  • Activities<br>2. Write the balanced half-reactions of the<br>compound, CaF2​
    8·2 answers
  • What are elements that bond with actinium
    7·1 answer
  • 3. A scientific investigation typically begins when a scientist makes observations that lead to the formation of a (n) _________
    10·1 answer
  • Which statement is true for a solution when its concentration of hydronium ions increases?
    7·2 answers
  • The net reaction of the calvin cycle is the conversion of co2 into the three-carbon sugar g3p. along the way, reactions rearrang
    5·1 answer
  • How is an endothermic reaction identified?
    5·2 answers
  • Please help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Consider the following balanced thermochemical equation for a reaction sometimes used for H₂S production: 1/8 S₈(s) + H₂(g) → H₂
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!