Chemistry College

For the following equation, assume you started with 15.6g potassium (K). How many moles of potassium oxide would be produced assuming you had unlimited oxygen? ____ K + ____ O2 → _____ K2O

Answers

Answer 1

According to the stoichiometry of the given chemical equation, 0.2 moles of potassium oxide would be produced assuming you had unlimited oxygen.

What is stoichiometry?

Stoichiometry is defined as   the determination of proportions of elements or compounds in a chemical reaction. The  relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.

In the given equation,156 g potassium gives 188.4 g potassium oxide, thus, 15.6 g will give 15.6×188.4/156=18.84 g potassium oxide which is 18.84/94.2= 0.2 moles.

Thus, 0.2 moles of potassium oxide would be produced assuming you had unlimited oxygen.

Learn more about stoichiometry,here:

https://brainly.com/question/9743981

#SPJ9

Related Questions

Given the following equation: 2N₂+502 → 2N₂O5
How many moles of N₂O5 are produced by reacting 10 moles of O₂?

Answers

Mole Ratios and Stoichiometry

We can form mole ratios by using a balanced chemical equation.

Solving the Question

[tex]2N_2+5O_2\rightarrow 2N_2O_5[/tex]

2 moles of [tex]N_2O_5[/tex] can be formed with 5 moles of [tex]O_2[/tex]:

[tex]\dfrac{n_{N_2O_5}}{2}=\dfrac{n_{O_2}}{5}[/tex]

We're given that we have 10 moles of [tex]O_2[/tex]:

[tex]\dfrac{n_{N_2O_5}}{2}=\dfrac{10}{5}[/tex]

[tex]n_{N_2O_5}=4[/tex]

Answer

4 moles of N2O4 are produced by reacting 10 moles of O2.

As per the balanced equation of the reaction, 5 moles of oxygen molecule gives 2 moles of the product N₂O₅ . Hence, 10 moles of oxygen will give 4 moles of nitrogen pentoxide.

What is mole ratio ?

The balanced chemical equation of a reaction represents the perfect stoichiometry of the reactants and products. Hence, the number of atoms of each element in the reactant side must be equal to their number of atoms in the product side.

The stochiometric ratio of number of moles of one reactant to the other or the product is called its mole ratio.

From the given reaction, it is clear that 5 moles of oxygen molecules reacts with nitrogen gas to give 2 moles of dinitrogen pentoxide.

Hence, the number of moles of dinitrogen pentoxide produced by 10 moles of oxygen gas is calculated as follows:

(10× 2)/5 = 4

Therefore, the number of moles of the product formed from 10 moles of oxygen gas is 4 moles.

Find more on mole ratio ?

https://brainly.com/question/12099869

#SPJ9

Determine the empirical formula of a compound containing 47. 37 grams of carbon, 10. 59 grams of hydrogen, and 42. 04 grams of oxygen.

Answers

the empirical formula of a compound containing 47. 37 grams of carbon, 10. 59 grams of hydrogen, and 42. 04 grams of oxygen is C3H8O2.

To determine the empirical formula of the compound, we need to find the ratios of the different elements present in the compound.

The first step is to convert the masses of each element to moles using their respective molar masses:

Carbon: 47.37 g / 12.01 g/mol = 3.94 mol

Hydrogen: 10.59 g / 1.01 g/mol = 10.48 mol

Oxygen: 42.04 g / 16.00 g/mol = 2.63 mol

Next, we divide each of the mole values by the smallest of the three, which is 2.63 mol:

Carbon: 3.94 mol / 2.63 mol = 1.50

Hydrogen: 10.48 mol / 2.63 mol = 3.98

Oxygen: 2.63 mol / 2.63 mol = 1.00

Now we need to convert these ratios to whole numbers by multiplying each by a common factor. The smallest ratio is 1.00, so we will multiply all the ratios by 2 to get:

Carbon: 1.50 x 2 = 3

Hydrogen: 3.98 x 2 = 8

Oxygen: 1.00 x 2 = 2

Therefore, the empirical formula of the compound is C3H8O2.

To know more about oxygen :-

brainly.com/question/13370320

#SPJ4

Which characteristic is not a periodic trend?


A. Atomic radius


B. Electron affinity


C. Ionization energies


D. Number of elements in a group

Answers

Answer:

Explanation:

D

Hsjhzhshshshdhejjshsjdhhdhhwshzye
Other Questions
You are experimenting with blood samples and you place a drop of RBCs into a solution of 300 millimoles of CaCl2. What effect does this have on the RBCs?A.) The RBCs would shrink.B.) No effect on RBCs. This is an isotonic soution and there would be no net movement of water.C.) The RBCs would swell and burst. Look at the attached photos! I need urgent help! Please answer each of the questions. If you have any, I will take them! Radio station wxyz takes a random survey of 300 morning drive-time listeners. The station determines that 85% of those surveyed enjoy listening to music more than a talk show. What can the radio station conclude from the survey?. How much energy, in joules per mole (J/mol), does a photon in the microwave region of the EM spectrum, contain? Assume the microwave has a frequency of 5.25 x 1010 s-1. Your answer should have 3 significant figures. What is the ureters function in osmoregulation aswell when heres too little water and too much water a relationship formed by a number of independent business owners who join together to buy merchandise to get the discount prices available to chain stores called True or False: the recommendations for exercise are in addition to any light intensity activities frequently performed throughout the day. What point lies on the line with a slope of m=2/3 that passes through the point (-3,-2)?PLEASE SHOW WORK the view that a successful strategy is less the product of deliberation and planning than it is the product of the collision of intentions and reality, whether internal or external, is referred to as although others can be important in motivating us, the belief that we have the ability to direct our own behavior and control our own lives is called: PLEASE HELP ASAP WILL GIVE BRAINLIEST During the baroque period, composers often felt restricted because 9. Find the sum of the first multiples of 5. Youve saved $45, which is 70% of the amount you want to save. What is the total amount you want to save? (round to nearest cent) * * That's it I really need help to help!What word in the English language does the following: the first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word? Please Explain and solve this problem. What trigonometric function would you use based upon the given information in the triangle shown below? ASAP Joseph selects a card from a standard deck of 52 cards and then replaces it afterwards. He decides to record the total number of red cards that he selects and calculates the proportion of red cards that he has selected so far after each pick. He then constructs a graph to visualize his results. Which of the following statements is FALSE?O The theoretical probability for selecting a red card in each pick is 0.5. O For a given number of selections, we can use Joseph's graph to find the number of diamonds that he has picked so far. O This is an example of the law of large numbers. O The relative frequency of selecting a red card changes with the increase in number of selections. A student conducts an investigation on a bar magnet with unlabeled poles. To determine which side of the magnet is north (N) or south (S), what steps can the student take?A. The student can cut the bar magnet in half and observe the direction of the magnetic field on each individual piece.B. The student can place the bar magnet near a nonmetal surface and observe the direction of the magnetic field on the surface.C. The student can place the bar magnet near a metallic surface and observe the direction of the magnetic field on the surface.D. The student can place the bar magnet near the known pole of a second magnet and observe the interaction between the poles. Andre luke and shemai had 1400 marbles. If andre had 200 fewer than luke and twice as many as shemai. How many did luke receive Write a piece of yellow journalism in which you try to convince Americans to support declaring war on Germany in world war 1.please help