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
liraira [26]
3 years ago
9

What is the percentage of nitrogen in the compound Cu(NO3)2

Chemistry
1 answer:
Reika [66]3 years ago
6 0

Answer:

14.936%

Explanation:

You might be interested in
What is the frequency of a radio wave with a wavelength of 578.0m
Radda [10]

Answer:

0.0017 Hz

Explanation:

the solution is in the photo

4 0
3 years ago
If the air temperature is the same as the temperature of your skin (about 30◦C), your body cannot get rid of heat by transferrin
Elenna [48]

Answer:

Explanation:

a )

energy produced per second = 500 J

Heat produced = 500 x .8 = 400 J per second.

If m be the mass of water evaporated per unit hour

m x latent heat = 400 x 60 x 60

= m x 2.42 x 10⁶ = 1.44 x 10⁶

m = .595 kg per hour

b )

volume of water = 595 mL

bottles = 595 / 750

.8 or 4/5 of bottle. per hour.

8 0
3 years ago
Be sure to answer all parts. Hydrogen iodide decomposes according to the reaction 2 HI(g) ⇌ H2(g) + I2(g) A sealed 1.50−L contai
Zarrin [17]

Answer : The concentration of HI and I_2 at equilibrium is, 0.0158 M and 0.00302 M respectively.

Explanation :

First we have to calculate the concentration of H_2, I_2\text{ and }HI

\text{Concentration of }H_2=\frac{\text{Moles of }H_2}{\text{Volume of solution}}=\frac{0.00623mol}{1.50L}=0.00415M

\text{Concentration of }I_2=\frac{\text{Moles of }I_2}{\text{Volume of solution}}=\frac{0.00414mol}{1.50L}=0.00276M

\text{Concentration of }HI=\frac{\text{Moles of }HI}{\text{Volume of solution}}=\frac{0.0244mol}{1.50L}=0.0163M

Now we have to calculate the value of equilibrium constant (K).

The given chemical reaction is:

                            2HI(g)\rightleftharpoons H_2(g)+I_2(g)

Initial conc.      0.0163     0.00415      0.00276

At eqm.        (0.0163-2x) (0.00415+x)  (0.00276+x)

As we are given:

Concentration of H_2 at equilibrium = 0.00467 M

That means,

(0.00415+x) = 0.00467

x = 0.00026 M

Concentration of HI at equilibrium = (0.0163-2x) = (0.0163-2(0.00026)) = 0.0158 M

Concentration of I_2 at equilibrium = (0.00276+x) = (0.00276+0.00026) = 0.00302 M

8 0
3 years ago
Electromagnetic Waves can propagate (move through);
wariber [46]

Answer:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

Explanation:

5 0
2 years ago
Name a complex salt used in silver-playing.​
kupik [55]

Answer :

Sodium Argentocyanide.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A chemist has a small amount of compound ( b.p. = 65 oC) that must be fractionally distilled. Yet, the Chemist does not want to
    13·1 answer
  • Models have been created that predict world sea levels will rise if the current global temperature increases continue. If these
    6·1 answer
  • Zinc reacts with excess hydrochloric acid to produce zinc chloride and hydrogen gas. What happens to the reaction rate if you in
    11·2 answers
  • in a certain solvent is first order with respect to (CH3)3CBr and zero order with respect to OH2. In several experiments the rat
    6·1 answer
  • Que representa en la reacción química <br> Na2SO4(s)+H2O(1)=
    15·1 answer
  • When sugar is dissolved in hot tea, physical changes occur. Write two physical properties of sugar
    13·1 answer
  • When the pressure that a gas exerts
    7·2 answers
  • What mass is in 5 moles of helium?
    15·1 answer
  • Can you please help solve and explain the steps for the calculation?
    9·1 answer
  • Please solve ...................................................................
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!