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
djyliett [7]
3 years ago
5

How many moles Of H2O will be produced from 42.0 g of H2O2?

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
3 0
Molar{Mass} H_{2}O_{2} =2*16.0+2*1.0= 34.0 g/mol

42.0 g H_{2}O_{2}* \frac{1 mol H_{2}O_{2}}{34.0 g H_{2}O_{2}} = 1.24 mol H_{2}O_{2}

2H_{2}O_{2} --\ \textgreater \ 2 H_{2}O +O_{2}
\\2 mol  ----2 mol   (from// reaction)

\\1.24 mol ---1.24 mol (from  the problem)

Answer: 1.24 mol H_{2}O.
You might be interested in
How many joules are required to boil 150. grams of water?
gizmo_the_mogwai [7]
Ans: 47,070 J


Thus, 47,070 J are needed to increase the temperature of 150 g of water from 25 degrees C to its boiling point of 100 degrees C. One can follow a similar procedure to determine the energy needed to heat water from one temperature to another.
3 0
3 years ago
Which of the following could be the pH of a very acidic solution?
Ganezh [65]
A. 3

From 0 to 6, a solution is acidic. 7 is neutral and from 8 to 14.. is basic
8 0
3 years ago
Chemical reactions forming ions _____.
Sergeu [11.5K]
The answer should be <span>balance electrically

</span><span>Chemical reactions that form ions should have a balanced charge. The example of the reaction is HCl. When forming ions, the equation should be:
HCl => </span>H^{+} + Cl^{-}
In this case, the hydrogen has one plus charge and chlorine has one negative charge. The resultant should be zero, so it's balanced.
4 0
3 years ago
A boy who weighs 30 kg is skateboarding at a speed of 5 m/s. What is the boys kinetic energy?
zheka24 [161]
I’m pretty sure it’s 150 joules
5 0
3 years ago
using the same balanced equation, what is the number of moles of carbon dioxide produced from 3.750 moles of propane?
kondor19780726 [428]

Answer:

11.25moles of CO2

Explanation:

First, let us generate a balanced equation for the reaction of propane to produce CO2. This reaction called Combustion. It is a reaction in which propane burns in air (O2) to produce CO2 and H20. The equation is given below:

C3H8 + 5O2 —> 3CO2 + 4H2O

From the equation,

1mole of C3H8 produced 3moles of CO2.

Therefore, 3.750 moles of C3H8 will produce = 3.750 x 3 = 11.25moles of CO2

5 0
3 years ago
Other questions:
  • Lead crystallizes in a face-centered cubic structure with a density of 11.34 g/cm3. Polonium crystallizes in a simple cubic stru
    8·2 answers
  • How many ml of 50 percent acid should be added to pure acid to make 70ml of 65 percent acid?
    11·2 answers
  • In the symbol (4/2)He, the superscript 4 is the for helium, and the subscript 2 is the for helium.
    9·2 answers
  • 1. 13mg or 1cg
    11·1 answer
  • At the beginning of this lesson, there was a question about two acids. Vinegar, which contains acetic acid, is used in foods and
    8·2 answers
  • HURRY HELP PLEASE!!
    7·1 answer
  • Charge 3 nC is in a hollow cavity inside a large chunk of metal that is electrically neutral. The total charge on the exterior s
    9·1 answer
  • What is a heritable trait​
    11·1 answer
  • How many sublevels are in L energy level?
    9·2 answers
  • What is the independent
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!