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taurus [48]
3 years ago
14

One of the few xenon compounds that form is cesium xenon heptafluoride (CsXeF7). How many moles of CsXeF7 can be produced from t

he reaction of 11.0 mol cesium fluoride with 11.5 mol xenon hexafluoride?
CsF(s) + XeF6(s) CsXeF7(s) ...?
Chemistry
2 answers:
larisa [96]3 years ago
6 0
The balanced chemical equation is written as:

<span>CsF(s) + XeF6(s) ------> CsXeF7(s)

We are given the amount of </span>cesium fluoride and <span>xenon hexafluoride used for the reaction. We need to determine first the limiting reactant to proceed with the calculation. From the equation and the amounts, we can say that the limiting reactant would be cesium fluoride.  We calculate as follows:

11.0 mol CsF ( 1 mol </span>CsXeF7 / 1 mol CsF ) = 11.0 mol <span>CsXeF7</span>
Ierofanga [76]3 years ago
4 0

Answer: 11 moles

Explanation:

CsF(s)+XeF_6(s)\rightarrow CsXeF_7(s)

As can be seen from the balanced chemical reaction,

1 mole of CsF reacts with 1 mole of XeF_6

Thus 11 moles of CsF react with 11 mole of XeF_6

Thus CsF is the limiting reagent as it limits the formation of products and XeF_6 is the excess reagent as (11.5-11)=0.5 moles are in excess.

As  1 mole of CsF produces= 1 mole of CsXeF_7

11 moles of CsF will produce=\frac{1}{1}\times 11=11 moles of CsXeF_7

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3 years ago
These substances are all ____. H2O2 Li NaCl O2
Bogdan [553]

Answer: pure substances.


Explanation:


The given substances are:

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All what surrounds us, which has mass and occupies spaces, is matter. There are two kind of matter: pure substances and mixtures.


Pure substances have a uniform and constant composition. On the other hand, mixtures are combinations of two or more pure substances in  any arbitratry ratio.


Pure substances may be elements or compounds. The elements are the substances conmposed by one only kind of atom. In the list of substances given, Li and O₂ are elements: all the atoms in Li are lithium, and all the atoms in O₂ are oxygen atoms.


Compounds are the chemical combination of two or more different kind of atoms. In the given list H₂O₂ and NaCl are compounds. As you see, H₂O₂ contains atoms of hydrogen and oxygen, chemically bonded, in a fixed ratio (2 atoms of hydrogen by 2 atoms of oxygen). And NaCl has atoms of Na (sodium) and Cl (chlorine), chemicaly bonded, in a fixed ratio (1:1).


There are only 118 known elements and you can find them in any modern periodic table. Therer are virtually infinitely many compounds since many different combinations of the elements can be attained.


Elements and compounds have in common that they are classified as pure substances.


7 0
3 years ago
The number of particles in 1 mole of hydrogen gas is ________.
ivanzaharov [21]
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The particles in gases are the molecules, not atoms.

So, every molecule is a particle, and when you are told that you have 1 mole of hygrogen gas means that you have 1 mole of H2 molecules which is the same that 1 mole of particles.

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3 years ago
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4 0
3 years ago
Read 2 more answers
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meriva

Answer:

0.8 mL of protein solution, 9.2 mL of water

Explanation:

The dilution equation can be used to relate the concentration C₁ and volume V₁ of the stock/undiluted solution to the concentration C₂ and volume V₂ of the diluted solution:

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We would like to calculate the value for V₁, the volume of the inital solution that we need to dilute to make the required solution.

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(10 mL - 0.8 mL) = 9.2 mL

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