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
eduard
3 years ago
9

If 50.0 g of KCl reacts with 50.0 g of O2 to produce KCLO3 according to the following equation how many grams of KCLO3 will be f

ormed
Chemistry
1 answer:
NeTakaya3 years ago
6 0

Answer:

2.2 grams

Explanation:

2KCl + 3O2 --> 2KClO3

KCl = 39+ 35.5

   = 74.5 g/mol

O = 16 g/mol so O2 is 32 g/mol

We need 3 mols of O2 for every 2 mols of KCl

50 g KCl = 50/74.5 = .671 mols of KCl

we need .671 * 3/2 = 1.007 mols of O2 = 32 g

Now we have more O2 than we need, just use the .671 mols of KCl, limiting reagent

now

We get 1 mol KClO3 for every mol of KCl

then we get .671 mols of KClO3

74.5 + 3*16 = 122.5 grams/mol of KClO3

.671 * 122.5 = 2.2 grams

You might be interested in
The gasses in a hair spray can are at temperature 300k and a pressure of 30 atm, it
Sergeeva-Olga [200]

Answer:

900 K

Explanation:

Recall the ideal gas law:

\displaystyle PV = nRT

Because only pressure and temperature is changing, we can rearrange the equation as follows:
\displaystyle \frac{P}{T} = \frac{nR}{V}

The right-hand side stays constant. Therefore:

\displaystyle \frac{P_1}{T_1} = \frac{P_2}{T_2}

The can explodes at a pressure of 90 atm. The current temperature and pressure is 300 K and 30 atm, respectively.

Substitute and solve for <em>T</em>₂:

\displaystyle \begin{aligned} \frac{(30\text{ atm})}{(300\text{ K})} & = \frac{(90\text{ atm})}{T_2} \\ \\ T_2 & = 900\text{ K}\end{aligned}

Hence, the temperature must be reach 900 K.

7 0
2 years ago
Thinner in the center that at the edges; virtual image smaller.
ipn [44]
<h3><u>Answer</u>;</h3>

Concave Lenses

<h3><u>Explanation</u>;</h3>
  • A concave lens is thin in the middle and thick at the edges, such that it seems to cave inwards. It spreads light rays apart producing an image smaller than the actual object.
  • <em><u>Images formed by a concave lens are virtual, upright, reduced in size and located on the same side of the lens as the object. Diverging lenses or concave lens always produce images that share these characteristics. The location of the object does not affect the characteristics of the image. </u></em>
3 0
3 years ago
Read 2 more answers
Why are you people eating typods??????????????????????????
Setler79 [48]
To try to get attention, it's not safe and you can get sent to the hospital. People think it's a joke, it's really not. 
5 0
3 years ago
Read 2 more answers
How many joules of heat are absorbed to raise the temperature of 435 grams of water at 1 atm from 25°C to its boiling point, 100
zepelin [54]
The energy absorbed may be calculated using:
Q = mcΔT
Where Q is the energy absorbed, m is the mass of water, c is the specific heat capacity of the water and ΔT is the change is the temperature of the water. Substituting the values,
Q = (435)(4.18)(100-25)
Q = 136,372 J

The energy absorbed is 136.4 kJ
7 0
3 years ago
Why are the atoms of the group 8 elements unreactive??​
anygoal [31]

Answer:

because that is the last group the ones before it are more reactive im sorry if this not what you were looking for.

3 0
3 years ago
Other questions:
  • Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for dental and orthopedic use, can be
    9·1 answer
  • In a sample of liquid water (h2o), which property differs among the water molecules? number of hydrogen and oxygen atoms bond st
    13·2 answers
  • Before Mendeleev published his periodic table, Döbereiner grouped elements with similar properties into "triads," in which the u
    6·1 answer
  • Another word for "basic" is?
    13·2 answers
  • What is the electronic configuration of Au3+?
    11·1 answer
  • If two parents with the genotypes bb and BB have children, what percentage of their children will have bushy eyebrows (dominant)
    13·1 answer
  • Pls help asap!!!!!!!
    11·1 answer
  • Physical reactions of carbonyl group​
    7·1 answer
  • 7.In which state of matter molecules have more energy to vibrate.​
    14·1 answer
  • On the electromagnetic spectrum what two types of waves are microwaves between?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!