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
Nuetrik [128]
3 years ago
14

How many moles of lithium oxide will form if 1.68 mol of lithium react?

Chemistry
1 answer:
levacccp [35]3 years ago
3 0
Based on the chemical equation, 4 moles of lithium reacts with 1 mole of oxygen to produce 2 moles of lithium oxide.
First of all you need to find 1 mole of Lithium by diving 1.68 mol by 4 and the answer should be 0.42 mol. To calculate the no. of moles of lithium oxide, you've to multiply 0.42 mol by 2. Hence the answer, 0.84 mol.

You might be interested in
Positive and Negative ions attract each-other and form chemical __________
e-lub [12.9K]

Answer:

Changes

Explanation:

When positive and negative ions attract each other it fors a negative chemical changes

7 0
3 years ago
A gaseous hydrogen and carbon containing compound is decomposed and found to contain 82.66% carbon and 17.34% hydrogen by mass.
Doss [256]
For the answer to the question above, I'll show the solution to my answers

moles C = 82.66 g/ 12.0111 g/mol=6.882 
<span>moles H = 17.34 g/ 1.008 g/mol=17.20 </span>

<span>17.20/ 6.882 =2.5 => H </span>
<span>6.882 / 6.882 = 1 => C </span>

<span>to get whole numbers multiply by 2 </span>
<span>C2H5 ( empirical formula Molar mass = 29.062 g/mol) </span>

<span>n = pV/RT = 0.732 x 0.158 L/ 0.08206 x 298 K= 0.00473 </span>
<span>molar mass = 0.275/ 0.00473 =58.1 g/mol </span>

<span>58.1 / 29.062 = 2 </span>

<span>multiply by two the empirical formula </span>

<span>C4H10</span>
3 0
3 years ago
Which of the following statements is always TRUE for the freezing of water?
Rom4ik [11]

ΔG > 0 is always true for the freezing of water.

Explanation:

  • The freezing of water is only spontaneous when the temperature is fairly small. Over 273 K, the higher value of TΔS causes the sign of ΔG to be positive, and there is no freezing point.
  • The entropy decreases as water freezes. This does not infringe the Thermodynamics second law. The second law doesn't suggest entropy will never diminish anywhere.
  • Entropy will decline elsewhere, provided it increases by at least as much elsewhere.
3 0
3 years ago
Why do farmers spray water over their crops before a frost?
Nezavi [6.7K]

Answer:

When water freezes and turns into ice, it releases latent heat. Then, the ice that builds up on the plant will insulate it from the colder surrounding air temperatures. Because of this, some growers choose to spray their crop with water before the freeze occurs.

Explanation:

5 0
3 years ago
Given the reaction:
STatiana [176]

answer:

as per the formula of given carbohydrate the answer is 15 moles

explanation:

  • 1 mole carbohydrate contains 6 moles water
  • 2.5 moles contain 6 X 2.5 = 15 moles
7 0
3 years ago
Other questions:
  • Which statement is true?
    9·1 answer
  • What type of reaction is 2 NO2 ---&gt; 2 O2 + N2
    11·1 answer
  • What are its electron-pair and molecular geometries? What is the hybridization of the nitrogen atom? What orbitals on and overla
    10·1 answer
  • 2Nal + Cl2 → 2NACI + I2
    15·1 answer
  • Which of the following solutions will have the highest concentration of chloride ions?
    12·1 answer
  • I need help in 5 minutes please
    13·1 answer
  • A majority of the 118 elements on the periodic table are classified as what?
    5·1 answer
  • How many particles of CuCr2O7 are present in a 64.5 gram sample?
    10·1 answer
  • What is a balanced nuclear equation for the alpha decay of Strontium-90?
    7·1 answer
  • Aqueous Copper (II) nitrate reacts with aqueous potassium iodide to form Copper (II) iodide solid and potassium nitrate
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!