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
otez555 [7]
3 years ago
14

An unknown compound is processed using elemental analysis and found to contain 117.4g of platinum 28.91 carbon and 33.71g nitrog

en how many moles of platinum are present
Chemistry
1 answer:
dlinn [17]3 years ago
8 0

Answer:

1 mole of platinum

Explanation:

To obtain the number of mole(s) of platinum present, we need to determine the empirical formula for the compound.

The empirical formula for the compound can be obtained as follow:

Platinum (Pt) = 117.4 g

Carbon (C) = 28.91 g

Nitrogen (N) = 33.71 g

Divide by their molar mass

Pt = 117.4 / 195 = 0.602

C = 28.91 / 12 = 2.409

N = 33.71 / 14 = 2.408

Divide by the smallest

Pt = 0.602 / 0.602 = 1

C = 2.409 / 0.602 = 4

N = 2.408 / 0.602 = 4

The empirical formula for the compound is PtC₄N₄ => Pt(CN)₄

From the formula of the compound (i.e Pt(CN)₄), we can see clearly that the compound contains 1 mole of platinum.

You might be interested in
Tyrone wants to buy peanut butter that does not contain any hydrogenated
ryzh [129]

The basic issue that Tyrone be concerned about is that there are unknown risks to not using hydrogenated products.

<h3>What is a hydrogenated oil?</h3>

A hydrogenated oil is one which is produced from fat by passing hydrogen gas through the fat at high temperature over a catalyst.

The basic issue that Tyrone be concerned about is that there are unknown risks to not using hydrogenated products.

Learn  more about fats and oils:brainly.com/question/11587174?

#SPJ1

8 0
2 years ago
How many grams of CuSO4 • 5H2O do you need to make 0.8 L of a 0.6 M solution
Bumek [7]
<h3><u>Unders</u><u>tanding</u><u> </u><u>the</u><u> </u><u>conc</u><u>ept</u><u>:</u><u>-</u></h3>

Here the concept of Molarity used .We will put the formula of Molarity then we find moles of copper sulphate .Then we can find the.Given weight of Copper sulphate.So let's do

<h3>Solution:-</h3>

  • Volume of Solvent=0.8L
  • Molarity=0.6M

We know

\boxed{\sf Molarity=\dfrac{Moles\:of\: solute}{Volume\:of\: Solvent \:in\;L}}

\\ \rm\longmapsto Moles\:of\: solute=Molarity\times Volume\:of\: Solvent\:in\:L

\\ \rm\longmapsto Moles\:of\: Solute=0.8(0.6)

\\ \rm\longmapsto Moles\:of\: Solute=0.48mol

Now

Molar Mass of Solute:-

\\ \rm\longmapsto CuSO_4.5H_2O

\\ \rm\longmapsto 65u+32u+4(16u)+5(2\times 1u+16u)

\\ \rm\longmapsto 96u+64u+5(2+16)

\\ \rm\longmapsto 160u+90u

\\ \rm\longmapsto 250u

\\ \rm\longmapsto 250g/mol

Now

\boxed{\sf No\:of\:moles=\dfrac{Given\:Mass}{Molar\:Mass}}

\\ \rm\longmapsto Given\:Mass=No\:of\:Moles\times Molar\:Mass

\\ \rm\longmapsto Given\:Mass=250(0.48)

\\ \rm\longmapsto Given\:Mass=120g

8 0
3 years ago
In any engineering design problem, the first step is to understand the problem and identify one or more possible solutions. In t
Semenov [28]

Answer:

rising pressure and decreasing temperature

Explanation:

Reversible reactions have a bit practical interest, but in some cases the technological benefit or profitability of production requires a shift in the equilibrium of a reversible reaction.

Increasing pressure

With increasing pressure on this system, the concentration of substances increases. In this case, the balance will shift towards smaller volumes. On the left side of the equation, two volumes of nitrogen react with one volume of hydrogen. On the right side of the equation there are two volumes of ammonia, i.e. the number of volumes on the right side of the equilibrium reaction is less than on the left and, therefore, with increasing pressure, the reaction equilibrium will shift to the right.

Decreasing temperature

When the temperature rises, the equilibrium shifts towards the endothermic reaction, and when the temperature decreases, towards the exothermic reaction and the reaction given above is the exothermic.

5 0
3 years ago
Word Bank: Mixtures, Compounds, Matter, Homogeneous, Element, Substance, Heterogeneous
docker41 [41]

Answer:

<em>1</em><em>.</em><em> </em><em>Element</em>

<em>2</em><em>.</em><em> </em><em>Heterogeneous</em><em> mixture</em>

<em>3</em><em>.</em><em> </em><em> </em><em>Compound</em>

<em>4</em><em>.</em><em> </em><em>Mixture</em><em> </em><em>or </em><em>Substances</em>

<em>5</em><em>.</em><em> </em><em>Elements</em>

<em>6</em><em>.</em><em> </em><em>Homogeneous</em><em> mixture</em>

4 0
3 years ago
If 1.oo mol CS2 reacts with 1.00 mol O2 , identify the limiting reactant
miss Akunina [59]

moles of excess reactant remaining: 0.67 mol CS2

moles of each product formed: 0.33 mol CO2 and 0.67 mol SO2

your coefficients in the chemical equation reveal the molar ratio of the reactants that must be present to give a complete reaction of both reactants. in this case each mole of CS2 requires 3 moles of O2 to form the products given. if you start with equimolar amounts of both reactants then the O2 must be in insufficient supply to completely react with all of the CS2. if only 1 mole of O2 is present, it will be consumed by one third that amount of CS2. all O2 will react. 0.67 mole of CS2 will remain. the CO2 comes from the carbon in CS2, so 0.33 mole of CO2 will be produced. since 2 moles of SO2 are produced for each mole of CO2 produced, then the amount of SO2 produced will be 0.67 mol.



4 0
3 years ago
Other questions:
  • 2 Points<br> Which of the following is an example of a physical change?
    13·1 answer
  • Solution X is 10 percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y m
    6·1 answer
  • Got this really tricky extra credit question I can't figure out. Anyone want to give #24 a try?
    7·1 answer
  • The C_7 compound which gives 3 signals in the broadband proton-decoupled ^13C spectrum could be:______
    5·1 answer
  • Compounds are pure substances. What other substances are considered pure substances?
    15·1 answer
  • Explain The process of a pot of boiling water left for to long drying up.
    5·2 answers
  • The Theoretical yield is 2.44 g and the actual yield is 3.49 g, what is the percent yield
    14·1 answer
  • What causes hydrogen bonds to rupture in ice
    5·2 answers
  • Every conversion factor is a ratio that is<br> equal to 1<br> less than 1<br> greater than 1
    12·1 answer
  • How is a waves amplitude related to the amount of energy the wave carries?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!