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
Natasha_Volkova [10]
3 years ago
6

50.0 g of oxygen are advalible for the combustion of 25g of carbon is this an adequate anount if so by bow much in excessbis the

oxygen if not by how much is the carbon in excess
Chemistry
1 answer:
VARVARA [1.3K]3 years ago
5 0

Answer:

                     6.25 g of Carbon is in Excess

Explanation:

                     The balance chemical equation is as follow:

                                          C  +  O₂  →  CO₂

Step 1: Calculate Moles of O₂ as:

Moles = Mass / M/Mass

Moles = 50 g / 32 g/mol

Moles = 1.562 mol of O₂

Step 2: Calculate Moles of C as;

Moles  = 25 g / 12 g/mol

Moles  =  2.08 mol

Step 3: Calculate the Limiting reagent:

According to equation,

              1 moles of O₂ reacted with  =  1 mole of C

So,

            1.562 moles of O₂ will react with  =  X moles of C

Solving for X,

                     X = 1 mol × 1.562 mol / 1 mol

                      X = 1.562 mol of C

While we are provided with 2.08 mol of C. Means C is in excess.

Step 4: Calculate amount of Excess C as;

Excess Moles = Given Moles - Used Moles

Excess Moles = 2.08 mol - 1.562 mol

Excess Moles = 0.521 moles

Step 5: Converting Excess moles to Mass as:

Mass = Moles × M.Mass

Mass = 0.521 mol × 12 g/mol

Mass = 6.25 g

You might be interested in
Why do different isotopes of an element generally have the same physical and chemical properties?
tresset_1 [31]

Answer:

The correct answer is because they have same number of protons but different number of neutrons.

Explanation:

Isotopes are atoms of the same element but differ only in the number of neutrons in the nucleus, i.e. they have same atomic number but different mass number.

Mass number is affected as they have different number of neutrons, thus effecting their physical properties.

The number of electrons and protons are same, i.e. their atomic number is same and thus their chemical properties are same as chemical properties are determined by the atom’s electronic configuration and that relates to number of protons.

5 0
3 years ago
What will be the volume occupied by 2.5 moles of nitrogen gas exerting 1.75 atm of pressure at 475K?
Marina86 [1]

Answer:

THE VOLUME OF THE NITROGEN GAS AT 2.5  MOLES , 1.75 ATM AND 475 K IS 55.64 L

Explanation:

Using the ideal gas equation

PV = nRT

P = 1.75 atm

n = 2.5 moles

T = 475 K

R = 0.082 L atm/mol K

V = unknown

Substituting the variables into the equation we have:

V = nRT / P

V = 2.5 * 0.082 * 475 / 1.75

V = 97.375 / 1.75

V = 55.64 L

The volume of the 2.5 moles of nitrogen gas exerted by 1.75 atm at 475 K is 55.64 L

6 0
3 years ago
Help!!! I need the answer for "explain how using the periodic table can help answer this question"
Tanzania [10]
Well a compound is 2 or more different molecules together. So if you see a periodic table you will see the elements to see if they are the same or not.
3 0
2 years ago
Which number represents an acidic pH, 4 or 9? _______ Numerical Answers Expected! Answer for Blank 1:
Tasya [4]

Answer:

4

Explanation:

pH scale of acidic is 4.

8 0
3 years ago
1) How much energy would be required to melt 15.0 g of ice at 0°C?
DerKrebs [107]

Answer:

5010J

Explanation:

The following data were obtained from the question:

Mass (m) = 15g

Heat of fusion (ΔHf) = 334J/g

Heat required (Q) =..?

The heat energy required to melt the ice can be obtained as follow:

Q = m·ΔHf

Q = 15 x 334

Q = 5010J

Therefore, the heat energy required to melt the ice is 5010J.

8 0
3 years ago
Other questions:
  • Lewis is making a model of the Earth-Moon system. He knows that the diameter of the Earth is about four times greater than the d
    7·2 answers
  • Choose the best option for the precursor to the tosylate intermediate Design a synthesis of cis-2-methylcyclopentyl acetate from
    14·1 answer
  • What mass of magnesium would combine with exactly 16.0 grams of oxygen
    5·1 answer
  • PLEASE HELP ME ASAP!!!
    15·1 answer
  • What has modern media shown you about atoms
    10·2 answers
  • Which organs are part of the respiratory system ​
    13·1 answer
  • Given his arrangement of the periodic table, Mendeleev was able to predict three elements that had not yet been discovered. He p
    12·1 answer
  • How many moles are in 75.0g of Na2CO3
    5·1 answer
  • WILL GIVE BRAINLIEST- What is the % of each element in Al2(CrO4)3
    13·1 answer
  • What’s properties my change during a chemical reaction
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!