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
natka813 [3]
3 years ago
5

The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a matchbox. if you were to rea

ct 65.1 g of potassium chlorate (kclo3) with excess red phosphorus, what mass of tetraphosphorus decoxide (p4o10) could be produced?
Chemistry
1 answer:
Phantasy [73]3 years ago
6 0

Since the problem states that excess amount of red phosphorus is supplied, therefore this only means that all of potassium chlorate are consumed to form the product tetraphosphorus decoxide.

The reaction is given as:

10KClO3(s) + 3P4(s) → 3P4O10(s) + 10KCl(s) 

 

First, we calculate for the amount of KClO3 in terms of moles. The molar mass of KClO3 is 122.55 g / mol.

moles KClO3 = 65.1 g / (122.55 g / mol)

moles KClO3 = 0.5312 mol

 

Using stoichiometric ratio of the balanced reaction, 10 moles of KClO3 produces 3 moles of P4O10, therefore:

moles P4O10 = 0.5312 mol KClO3 (3 moles of P4O10 / 10 moles of KClO3)

moles P4O10 = 0.16 mol

Converting this to mass by multiplying the molar mass of P4O10 = 283.886 g/mol

mass P4O10 = 0.16 mol * 283.886 g/mol

mass P4O10 = 45.24 g

 

ANSWER: 45.24 g P4O10

You might be interested in
Which statement is true? Postively charged objects attract other positively charged objects negatively charged objects attract o
ANEK [815]

Answer:

Explanation:one is true because if it is positiveit would not be attracting it would be sepperating

8 0
3 years ago
How does a small set of elements combine to form molecules , compounds and mixtures, which are used in your daily lives?
Anastaziya [24]

Elements are the simplest substances in nature that cannot be broken down into smaller parts by normal chemical means. They contain only atoms of the same type, ones that have identical chemical properties. There are at least 90 naturally-occurring elements, plus man-made ones. If you look at a periodic table, you'll see the names of each of these elements and some of their properties (such as mass, or how heavy the atom is).

Molecules & Compounds

When atoms from different elements are joined together in groups, they form molecules. The atoms in molecules bind together chemically, which means that the atoms cannot be separated again by physical means, such as filtration. The molecule has different properties from the elements from which is was made. A water molecule is not three separate atoms, two hydrogen (H) and one oxygen (O), but it is actually a unique H2O molecule with its own set of distinct properties.

Like elements that are formed of atoms of the same sort, compounds are formed of molecules of the same sort. The elements can be combined into about 2 million different compounds! Did you know that eggshells are made up of a calcium carbonate compound? And citric acid, which is found in oranges and other citrus fruit, is a compound of carbon, hydrogen, and oxygen atoms. Your kids might find it helpful to do a science research project finding other common compounds around your house. Make hypotheses and do research using a chemistry reference book, web site, or text book to find out the answers.

There are more carbon compounds than compounds of any other element. Organic compound is the name for the carbon compounds found in all living things.

Mixtures - A Bit of This and That

All matter can be classified into two categories: pure substances and mixtures. A pure substance consists of a single element or compound. Iron is formed only of iron (Fe) atoms; table salt is formed only of sodium chloride (NaCl) molecules. A mixture, however, is made up of different compounds and/or elements. When salt is added to water to make saltwater, it becomes a mixture. The salt and water molecules do not combine to form new molecules, but only "mix" together while still retaining their identities. Air is also a mixture, containing just the right amounts of nitrogen, oxygen, and other gases for life on Earth.  

Not all mixtures have the same composition throughout. Salt water does, but Italian salad dressing does not--the parts separate and are not perfectly blended or homogenous. Mixtures of metals are called alloys (bronze is an alloy of copper and tin); liquid mixtures (such as saltwater) are called solutions.

The substances that make up a mixture can be separated by physical means because they have different physical properties (such as different melting points) and are not chemically bonded. A mixture can be separated into its parts in a variety of ways, including decantation (letting the sand in a mixture of water and sand settle, and then draining off the water, for example), filtering, and evaporation. You can use a kitchen funnel and coffee filter for filtration, and either use sunlight or low heat for evaporation. Try out these methods on saltwater and a sand and water mixture to see how they work and compare the results. Evaporation will work for both saltwater and sand and water solutions, but filtration will not work for saltwater. Can you think of other examples where a separating method will work for one mixture and not another? Another one to try is lemon juice, a mixture of water and citric acid; what do you think happens when it is boiled? The water evaporates and eventually leaves nothing but citric acid crystals

6 0
3 years ago
Help please .............​
lapo4ka [179]

Answer:

And what is your question

Explanation:

3 0
3 years ago
What type of energy results from the
jeka94

Answer:

C fghhtrsfeagutyrwraqedf

3 0
3 years ago
What term represents a compound
alukav5142 [94]
Compound can be described using element symbol and numbers .  it is a mixture which is result of two or more chemical element in such a way that atoms of different elements held together  by chemical compound that are difficult to break . Most often a compound looks and behave like an element 
 for example :-   Hydrogen   and oxygen ..   both of these elements are gaseous at room temperature and atmospheric pressure , but when both combined they both form compound water . ( H2O )
6 0
3 years ago
Other questions:
  • What is the difference between applied and pure chemistry?
    5·1 answer
  • 1. The mass of 6.45 x 1022 atoms C​
    8·1 answer
  • How many liters of water are needed to make a 4.00 M solution using 75.0
    13·1 answer
  • List the exceptions to Metals showing a high density?
    9·1 answer
  • Need help on this fast ​
    7·2 answers
  • HELP I NEED HELP ASAPP
    15·1 answer
  • The reaction 2NoBr(g) ---> 2NO(g)+Br2(g) is a second order reaction with a rate constant of 0.80M^-1 s^-1 at 11 C. If the ini
    13·1 answer
  •  El vinagre es ácido acético al 5%, a cuantos gramos de ácido acético equivalen 500 g de vinagre?​
    13·1 answer
  • What is the mass of 0.38 moles of cobalt (Co)?
    12·1 answer
  • How does the motion of particles compare between different phrases of matter?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!