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
Snowcat [4.5K]
2 years ago
15

How many moles of KCIO3 are in 5 g of KClO3?

Chemistry
2 answers:
rosijanka [135]2 years ago
7 0
1. Calculate the molar mass of KClO3: 39.098+ 35.453 + 3(16) = 122.551 g KClO3
2. 5gKClO3 x 1mol KClO3/ 122.551g KClO3 = 0.041mol of KClO3
STatiana [176]2 years ago
6 0

Molar mass of KClO3

\\ \tt\hookrightarrow 39+35+3(16)

\\ \tt\hookrightarrow 74+48

\\ \tt\hookrightarrow 122g/mol

Now

\\ \tt\hookrightarrow No\:of\:moles=\dfrac{Given\:mass}{Molar\:mass}

\\ \tt\hookrightarrow No\:of\:moles=\dfrac{5}{122}

\\ \tt\hookrightarrow No\:of\:moles=0.04mol

You might be interested in
What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common?
Viefleur [7K]
They all can condense and manipulate light<span />
4 0
3 years ago
Read 2 more answers
Can the groups of the periodic table be numbered in two different ways
Vadim26 [7]
The groups (left to right) are numbered from 1 to 18. they arent numbered any other way. 

period (up to down.) are numbered from 1-7
3 0
3 years ago
10 ejemplos de disoluciones identificando el soluto y el solvente y el tipo de disolucion que corresponde
Keith_Richards [23]

Answer:

hije51k 5jk45679349fjvokhffgpv9ü

4 0
2 years ago
What is the mass of a sample of alcohol (specific heat = 2.4 J/gC), if it requires 4780 J of heat to raise the temperature by 5.
insens350 [35]

The mass of a sample of alcohol is found to be = m = 367 g

Hence, it is found out that by raising the temperature of the given product, the mass of alcohol would be 367 g.

Explanation:

The Energy of the sample given is q = 4780

We are required to find the mass of alcohol m = ?

Given that,

The specific heat given is represented by = c = 2.4 J/gC

The temperature given is ΔT = 5.43° C

The mass of sample of alcohol can be found as follows,

The formula is c = \frac{q}{mt}

We can drive value of m bu shifting m on the left hand side,

m = \frac{q}{ct}

mass of alcohol (m) = \frac{4780}{(2.4)( 5.43)}

m = 367 g

Therefore, The mass of the given sample of alcohol is

m = 367g

It requires 4780 J of heat to raise the temperature by 5.43 C in the process which yields a mass of 367 g of alcohol.

4 0
3 years ago
During the chemical reaction given below 21.71 grams of each reagent were allowed to react. Determine how many grams of the exce
swat32

Answer: 16.32 g of O_2 as excess reagent are left.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} SO_2=\frac{21.71g}{64g/mol}=0.34mol

\text{Moles of} O_2=\frac{21.71g}{32g/mol}=0.68mol

2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)  

According to stoichiometry :

2 moles of SO_2 require = 1 mole of O_2

Thus 0.34 moles of SO_2 will require=\frac{1}{2}\times 0.34=0.17moles  of O_2

Thus SO_2 is the limiting reagent as it limits the formation of product and O_2 is the excess reagent.

Moles of O_2 left = (0.68-0.17) mol = 0.51 mol

Mass of O_2=moles\times {\text {Molar mass}}=0.51moles\times 32g/mol=16.32g

Thus 16.32 g of O_2 as excess reagent are left.

3 0
2 years ago
Other questions:
  • Propose a structure for the first intermediates in the reaction of 1,3-bisphosphoglycerate with a thiol group on the enzyme to f
    10·1 answer
  • Alice added sodium chloride to water and stirred the water for several minutes. Alice is most likely trying to demonstrate that
    14·1 answer
  • 4. What do the numbers in Carbon-12 and Carbon-14 represent?!
    5·1 answer
  • I need help on this one to I don't know it
    7·1 answer
  • How do you identify producers and consumers?
    7·2 answers
  • Which 2 characteristics must and object have in order to be considered matter?
    6·1 answer
  • Help ASAP!!
    10·1 answer
  • Can someone please help me with these questions
    11·1 answer
  • Using the Lewis dot Symbol Illustrate how the atoms are bonded in each of the following ionic compounds; thanks
    13·1 answer
  • 10 Which of the following is an example of how economics can affect science?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!