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
chubhunter [2.5K]
3 years ago
9

The blue color in some fireworks occurs when copper chloride is heated to approximately

Chemistry
1 answer:
Sedaia [141]3 years ago
7 0
The correct answer should be 1500 K. I hope I helped.
You might be interested in
State the difference that may be observed between the solids obtain by evaporating a solution of a solid to dryness or letting i
tresset_1 [31]

Answer:

It well melt.While theother one will dry

Explanation:

3 0
2 years ago
Which allele for human blood type is recessive?
blagie [28]
O blood type is recessive hope this helps

8 0
3 years ago
Read 2 more answers
What weight (in grams) of h2so4 would be needed to make 750.0 ml of 2.00 m solution?
frosja888 [35]

Answer:

I think the answer should be 147

Explanation:

8 0
2 years ago
Why do all chemical changes occur
GenaCL600 [577]

Answer:

Chemical Reactions. ... Reactions occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules.

6 0
3 years ago
Find the pH of the equivalence point and the volume (mL) of 0.0372 M NaOH needed to reach the equivalence point in the titration
elixir [45]

Answer:

8.54

Explanation:

At equivalence point :  

42.2 X 0.052 = Vol. NaOH X 0.0372

Vol of NaOH = 2.1944/0.0372 = 58.99 ml

So volume of NaOH recquired to reach equivalence point = 58.99 ml

Number of miliimoles of CH3COOH = molarity X volume in ml = 42.2 X 0.052             = 2.1944 millimoles

Number of millimoles of NaOH = 58.99 X 0.0372 = 2.1944

Now CH₃COOH and NaOH reacts to give CH₃COONa according to the reaction :

CH₃COOH + NaOH ------> CH₃COONa + H₂O

1 mole of CH₃COOH reacts with 1 mole of NaOH to give 1 mole of CH₃COONa  

So 2.1944 millimoles of CH₃COOH will react with 2.1944 millimoles of NaOH to give 2.1944 millimoles of CH₃COONa

So all the acid (CH₃COOH) and base (NaOH) has been converted into salt (CH₃COONa) so there is no acid or base left.

Now molarity of CH₃COONa = number of millimoles of CH₃COONa/total volume in ml = 2.1944/(58.99 + 42.2) = 2.1944/101.19 = 0.02169 M

So using the hydrolysis equation :  

pH = 1/2 [ pKw + pKa + log c ]  

Ka for acetic acid = 1.75 X 10⁻⁵  

so pKa = -log (1.75 X 10⁻⁵) = 4.74  

Kw = 10⁻¹⁴

so pKw = -log 10⁻¹⁴ = 14

c = 0.02169  

so log c = log 0.02169 = -1.66  

putting the values....  

pH = 1/2 [14 + 4.74 - 1.66 ]  

pH = 1/2 [ 17.08] = 8.54

6 0
3 years ago
Read 2 more answers
Other questions:
  • Complete and balance the equation for this reaction in acidic solution. zns+no3-
    13·1 answer
  • PLEASE HELP IM SO CONFUSED
    6·2 answers
  • A student is curious about the Ksp value for NaCl. The student looks up the value om the appendix of his textbook but cannot fin
    15·1 answer
  • Which of the following can be the product of a neutralizationaction?
    9·2 answers
  • Which of the following is best revealed by the Bohr Model? . A. Electrons are found only within the nucleus of an atom.
    10·1 answer
  • In the chemical equation H, O2 (aq) --> H2O(1) + O2(g), the O2 is a
    6·1 answer
  • What will be the final temperature when a 25.0 g block of aluminum (initially at 25 °C) absorbs 10.0 kJ of heat? The specific he
    5·1 answer
  • 1. Waves are created when a force, or an energy
    7·1 answer
  • Determine el porcentaje masa volumen de una solucion compuesta de 150g de etanol y 20g de agua cuyo volumen total es de 165ml
    6·1 answer
  • How is the atomic emission spectrum of an element produced?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!