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
AVprozaik [17]
3 years ago
9

HELP PLEASE I WILL GIVE 100 PONTS

Chemistry
2 answers:
pochemuha3 years ago
5 0

Answer:

boiling point

Explanation:

Vesna [10]3 years ago
3 0
They would all decrease
You might be interested in
The solubility of acetanilide in hot water (5.5 g/100 ml at 100∘C) is not very great, and its solubility in cold water (0.53 g/
Olin [163]

Answer:

89.4%

Explanation:

Initially, there is 5.0 of the acetanilide in 100 mL of water, then the solution is chilled at 0ºC. The solubility represents the amount that the solvent (water) can dissolve of the solute (acetanilide). So, at 0ºC, 100 mL of water can dissolve till 0.53 g of the compound, the rest will precipitate and will be recovered.

So, the mass that is recovered is 5.0 - 0.53 = 4.47 g

The percent recovery is:

(4.47/5)x100% = 89.4%

8 0
4 years ago
At what volume of added acid is the phph calculated by working an equilibrium problem based on the initial concentration and kbk
nikdorinn [45]

In an acid-base neutralization reaction, the equilibrium reaction would be between a weak base and its conjugate strong base. So, this must be the basis of the volume of added base.

<h3>What is pH ?</h3>

pH is used to measure whether the substance is acidic, basic or neutral and the range is 0 - 14.

<h3>What is Neutralization Reaction ? </h3>

Neutralization reaction is a chemical reaction in which an acid and a base react quantitatively with together.

Neutralization reaction equation:

Acid + Base → Salt + Water

Thus from the above conclusion we can say that In an acid-base neutralization reaction, the equilibrium reaction would be between a weak base and its conjugate strong base. So, this must be the basis of the volume of added base.

Learn more about the Neutralization reaction here: brainly.com/question/23008798

#SPJ4

3 0
2 years ago
How many grams of O₂ can be prepared from the thermal decomposition of 4.27 kg of HgO? Name and calculate the mass (in kg) of th
babymother [125]

Mass of Oxygen is: 0.784gm

Potassium chlorate is KClO3 and the decomposition looks like this...

2KClO3 ==> 2KCl + 3O2

4.50 g KClO3 x 1 mole/122.55 g = 0.0367 moles

0.0367 moles KClO3 x 3 moles O2/2 moles KClO3 = 0.0245 moles O2 (see mole ratio in balanced equation)

mass of O2 = 0.0245 moles O2 x 32 g/mole = 0.784 g O2 formed

<h3>What is the pressure of a mixture of CO2 and KR?</h3>

A mixture of CO2 and Kr weighs 37.0 g and exerts a pressure of 0.737 atm in its container. is expensive, you wish to recover it from the mixture.

<h3>How much oxygen is created when one mole of potassium chlorate breaks down?</h3>

in the reaction 2K C lO3 2K C l + 3O2 K C lO3? This demonstrates that 3 moles of oxygen gas are created for every 2 moles of degraded potassium chlorate.

<h3>How is high pressure liquid CO2 produced?</h3>

High pressure liquid CO 2 is produced by compressing the gaseous CO 2 in multistage compressors to pressures in the neighbourhood of 69 bar (1000,76 psi) pressure, then cooling it to around 18 °C (64,4 °F). It is customarily filled into specially constructed steel cylinders.

Learn more about decomposition HgO:

brainly.com/question/15066243

#SPJ4

5 0
2 years ago
What is the volume of 12.0 grams of oxygen gas at STP<br><br> Atomic mass:O = 15.99 grams/moles
strojnjashka [21]

Answer:

16.82 L.

Explanation:

  • We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm (P = 1.0 atm, STP conditions).

V is the volume of the gas in L (V = ??? L).

n is the no. of moles of the gas in mol (n = mass/molar mass = (12.0 g)/(15.99 g/mol) = 0.7505 mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),

T is the temperature of the gas in K (T = 0.0°C + 273 = 273.0 K, STP conditions).

<em>∴ V = nRT/P</em> = (0.7505 mol)(0.0821 L.atm/mol.K)(273.0 K)/(1.0 atm) = <em>16.82 L.</em>

6 0
4 years ago
The average atomic mass of chromium is 52.00 amu. What is the mass of 3.0 mol of chromium?
Murljashka [212]
There  for it is 156g
5 0
3 years ago
Other questions:
  • Calculate the molar mass of a gas if an 8.06×10(to the power of -2) gram sample of it occupies .0650 L at 547°C and 70.5 kPa​
    9·1 answer
  • (PLZ HELP ME ON THIS!!) If you put magnets together and allow them to arrange themselves, how will the poles be aligned?
    11·1 answer
  • If you reacted 88.9g of ammonia with excess oxygen, what mass nitric oxide would you expect to make
    14·1 answer
  • What are radial wave function and angular wave function
    8·1 answer
  • If the [H3O+] of a solution is 1x 10-8 mol/L the [OH-] is
    13·1 answer
  • Classify the following reaction: P4O10 + 6H2O 4H3PO4
    13·2 answers
  • How many atoms are in the 3.5 moles of arsenic atoms?
    6·2 answers
  • How does a hydroelectric power plant convert energy?
    5·2 answers
  • Determine the mass of 6.43 moles of Barium.
    9·2 answers
  • If the equilibrium concentrations are 1. 01 m a, 1. 51 m b, and 2. 05 m c. Calculate the value of the equilibrium constant of th
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!