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
weqwewe [10]
2 years ago
7

How many formula units are there in 20.6 moles of Al(NO3)3?

Chemistry
1 answer:
Mnenie [13.5K]2 years ago
7 0

Answer:

0.004 6949 18602 2713 mole

You might be interested in
A sample of gas in a balloon has an initial temperature of 21 ∘C and a volume of 1310 L . If the temperature changes to 70 ∘C ,
bixtya [17]

Answer:

1528.3L

Explanation:

To solve this problem we should know this formula:

V₁ / T₁ = V₂ / T₂

We must convert the values of T° to Absolute T° (T° in K)

21°C + 273 = 294K

70°C + 273 = 343K

Now we can replace the data

1310L / 294K = V₂ / 343K

V₂ = (1310L / 294K) . 343K → 1528.3L

If the pressure keeps on constant, volume is modified directly proportional to absolute temperature. As T° has increased, the volume increased too

7 0
3 years ago
Write a balanced half-reaction for the oxidation of aqueous hydrazine N2H4 to gaseous nitrogen N2 in basic aqueous solution
Zigmanuir [339]

Answer:

N2H2(aq) + 2OH^-(aq) ----------> N2(g) + 2H2O(l) + 2e

Explanation:

Hydrazine is mostly used in thermal engineering as an anticorrosive agent. Hydrazine can be oxidized in aqueous solution as shown in the equation above. Oxidation has to do with loss of electrons and increase in oxidation number.

The oxidation number of nitrogen in the equation increased from -1 in hydrazine on the lefthand side of the reaction equation to zero in nitrogen on the right hand side of the reaction equation. Two electrons were lost in the process as shown.

7 0
3 years ago
What is the meaning of resolution in science?
horrorfan [7]

Answer:

Resolution is the ability to distinguish two objects from each other. Light microscopy has limits to both its resolution and its magnification.

7 0
2 years ago
what concentration in parts per million in a solution that contains .008 grams of o2 dissolved in 1000 grams of water
julia-pushkina [17]
Ppm = mass of solute mg / mass of solvent kg

0.008 * 1000 =  8.0 mg ( solute )

1000 / 1000 = 1.0 kg (solvent )

ppm = 8 / 1

= 8.0 ppm

hope this helps!
7 0
3 years ago
If you increase the force on an object, its acceleration increases. True or false
lions [1.4K]

Answer:

true

Explanation:

from Newton's second law of motion ,we can understand that acceleration of a body is directly proportional to the force applied on it and inversely proportional to its mass ,so as the force applied increase,the acceleration also increases

8 0
2 years ago
Other questions:
  • For the exothermic reaction 3h2(g)+n2(g)→2nh3(g) which of the following changes could be carried out in such a way as to not cau
    9·1 answer
  • Calculate the sublimation pressure of the solid at the melting point of 400.00 K assuming that the enthalpy of sublimation is no
    9·1 answer
  • What mass of HCl is needed to prepare 1.00 mole of Cl₂? 2 KMnO₄ + 16 HCl → 2MnCl₂ + 5 Cl₂ + 8 H₂O + 2 KCl
    7·1 answer
  • MgCl2(at)+Br2(l)=MgBr2(at)+Cl2(g)<br><br> how do you write in a word equation
    12·1 answer
  • Explain newton's first law of motion
    8·1 answer
  • What is the difference between a substance that low concentration and one high concentration
    11·1 answer
  • Jack is melting butter in a pan. He observes a clear liquid with many solid particles floating in it. Based on Jack's observatio
    7·1 answer
  • Write the chemical formula for the ionic compound formed by lithium and fluorine.
    11·1 answer
  • What is the SI unit used to measure weight?
    10·1 answer
  • During what change is heat absorbed?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!