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
fredd [130]
2 years ago
13

How many grams of oxygen can be obtained from 250. grams of KCIO3?

Chemistry
1 answer:
guapka [62]2 years ago
3 0

Answer:

Keep it simple. If all the oxygen contained in the 200 grams of potassium chlorate is produced in the decomposition, then all we have to do is find out how many grams of oxygen are there in the 200 grams. This we can do by calculating the ratio of oxygen mass to the whole. Using 39.1 for potassium, 35.45 for chlorine and 3 times 16, or 48 for the oxygen, we get a total of 122.55 grams per mole for potassium chlorate, of which 48 grams are oxygen. This ratio is 48/122.55. This ratio times the original 200 grams of the compound, gives us 78.34 grams of oxygen produced.

Explanation:

You might be interested in
What is the chemical formula for the ionic compound calcium chloride?
gulaghasi [49]

C a C l ^2


Hope this helps

7 0
3 years ago
Read 2 more answers
An aqueous solution has a normal boiling point of 103.0°
torisob [31]
About 5 degrees  that is

3 0
3 years ago
For a particular reaction, Δ=−111.4 kJ and Δ=−25.0 J/K.
vichka [17]

Answer:

\Delta G =-103.95kJ

Explanation:

Hello there!

In this case, since the thermodynamic definition of the Gibbs free energy for a change process is:

\Delta G =\Delta H-T\Delta S

It is possible to plug in the given H, T and S with consistent units, to obtain the correct G as shown below:

\Delta G =-111.4kJ-(298K)(-25.0\frac{J}{K}*\frac{1kJ}{1000J} )\\\\\Delta G =-103.95kJ

Best regards!

6 0
3 years ago
(01.01 LC)
Usimov [2.4K]

The answer would be "false" or the second option. A opinion is what you think on a certain subject and science is full of facts and opinions of other scientist which would mean your using someone else for your opinion just remember opinions is what you think about a subject and you can't use science for your opinion.

Hope this helps!

7 0
3 years ago
Read 2 more answers
What mass of Ba3(PO4)2 is contained in 1575 mL of a 0.35 M solution of Ba3(PO4)2?
irina [24]

Answer:

= 331.81 g

Explanation:

Molarity is calculated by the formula;

Molarity = Moles/volume in liters

Therefore;

Moles = Molarity ×Volume in liters

          = 0.35 M × 1.575 L

          = 0.55125 Moles

But; Molar mass of Ba3(PO4)2 is 601.93 g/mol

Thus;

Mass = 0.55125 moles × 601.93 g/mol

         <u>= 331.81 g</u>

3 0
3 years ago
Other questions:
  • Chromosomes _____. (Choose all that apply)
    9·2 answers
  • At equilibrium, both the forward reaction and the reverse reaction occur simultaneously and at the same rate. Since the rates ar
    11·1 answer
  • Several students want to conduct a descriptive investigation on igneous rocks. Which process is most likely to be part of their
    14·1 answer
  • Which physical state is most highly ordered​
    9·1 answer
  • Engineering applies blank And math to develop technology
    15·1 answer
  • The reaction of hydrogen bromide(g) with chlorine(g) to form hydrogen chloride(g) and bromine(g) proceeds as follows: 2HBr(g) +
    11·1 answer
  • Find the mass in 3.8 moles of magnesium chloride​
    11·1 answer
  • Which scenario supports the ""one gene–one enzyme"" hypothesis of metabolic disease causation?
    5·1 answer
  • Write the symbol for every chemical element that has atomic number greater than 8 and atomic mass less than 25.5 u.
    15·1 answer
  • What is the number of collaborative relationships he creates
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!