Chemistry College

2KCIO3 --> 2KCI + 302

If 5.0g KCIO3 of is decomposed, how many grams of KCI are producted?

Answers

Answer 1

Answer:

The equation shows that for every 1 mole of KCIO3 that is decomposed, 1 mole of KCI is produced.

If 5.0g of KCIO3 is decomposed, we can use the molar mass of KCIO3 to convert that to moles.

Molar mass of KCIO3 = 39 + 35.5 + 3(16) = 138.5 g/mol

5.0g of KCIO3 is equal to (5.0g / 138.5 g/mol) = 0.036 moles

And since 1 mole of KCIO3 produces 1 mole of KCI, 0.036 moles of KCIO3 will produce 0.036 moles of KCI.

To convert that to grams, we use the molar mass of KCI, which is 39 + 35.5 = 74.5 g/mol

So, 0.036 moles of KCI is equal to (0.036 moles * 74.5 g/mol) = 2.69g of KCI.

Related Questions

A sample of an ideal gas has a volume of 2.20 L at 282 K and 1.02 atm. Calculate the pressure when the volume is 1.05 L and the temperature is 308 K.
= atm

Answers

Considering the combined law equation, the pressure when the volume is 1.05 L and the temperature is 308 K is 2.33 atm.

Boyle's law

Boyle's law states that the pressure of a gas in a closed container is inversely proportional to the volume of the container, when the temperature is constant.

Mathematically, this law expresses that the product of the pressure by the volume is constant:

P×V= k

where:

P is the pressure.V is the volume.k is a constant.

Charles' law

Charles' law states that the volume is directly proportional to the temperature of the gas when the pressure is constant.

Mathematically, this law establishes that the ratio between volume and temperature is constant:

V÷T=k

where:

V is the volume.T is the temperature.k is a constant.

Gay-Lussac's law

Gay-Lussac's law states that the pressure of a gas is directly proportional to its temperature when the volume is constant.

Mathematically, this law establishes that the ratio between pressure and temperature is constant:

P÷T=k

where:

P is the pressure.T is the temperature.k is a constant.

Combined law equation

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

(P×V)÷T=k

Analyzing an initial state 1 and a final state 2, it is fulfilled:

(P₁×V₁)÷T₁= (P₂×V₂)÷T₂

Final pressure in this case

In this case, you know:

P₁= 1.02 atmV₁= 2.20 LT₁= 282 KP₂= ?V₂= 1.05 LT₂= 308 K

Replacing int the combined law equation:

(1.02 atm×2.20 L)÷282 K= (P₂×1.05 L)÷308 K

Solving:

[(1.02 atm×2.20 L)÷282 K] × (308 K÷1.05 L)= P₂

2.33 atm=  P₂

In summary, the final pressure is 2.33 atm.

Learn more about combined law equation:

https://brainly.com/question/4147359

#SPJ1

A gasoline molecule contains ___ atoms of carbon and ___ atoms of hydrogen

Answers

4-12 , carbon atoms and the boiling range

How many carbon atoms are in a gallon of gasoline?

The hydrocarbons in gasoline generally comprise 4-12 carbon atoms and have a boiling range of 30 to 210 °C, whereas diesel fuel has hydrocarbons with 12-20 carbon atoms and a boiling range of 170 to 360 °C.

Hydrocarbons are a type of chemical that exclusively consists of hydrogen and carbon atoms. Polycyclic aromatic hydrocarbons, or PAHs, are those that combine hydrogen with carbon atom rings. Hydrocarbons containing additives, such as gasoline, are also mentioned. Gasoline is a petroleum-derived product that consists of a combination of liquid aliphatic and aromatic hydrocarbons with carbon atoms ranging from C4 to C12 with a boiling temperature range of 30-225°C.

To learn more about gasoline to refer;

https://brainly.com/question/29838785

#SPJ1

Liquid ammonia has a vapor pressure of 109 mm Hg at -66C and a heat of vaporization of 2.46 x 10^4 J/mol.

Estimate the normal boiling point of ammonia.

Answers

It is stated in this query that p above p is the rule when using the Clausius-Claparon equation.

How hot does it get when it boils?

According to what I'm going to explain, p not will be our boiling point, and that value will be equal to delta minus. The boiling point is determined by the formula: H, vapor pressure over r 1 over t minus 1 over t not and again t not. Thus, a pressure line can be seen here. According to what we've been told, it is 1 o 9 miles per hour. 680 would enter there, followed by delta h, at a distance of 6080000000 meters from Mercury. The vapourization factor is 2.46. I'm not going to include the units in this section because ideal gas has a constant 8.314 joules per mole.

It is - 66 degrees Celsius when mole kelvin is subtracted from the initial temperature. Since our boiling point would be 2 o 7 kelvin minus 1 over t, that would convert to that value. This will be plugged into my equation using the solver here, which yields 237 kelvin when accounting for t. The boiling point at 680 millimeters of mercury would be minus 273, which gives me a result of minus 36 degrees celsius, and we then translated that to degrees celsius.

For more information on boiling point kindly visit to

https://brainly.com/question/2153588

#SPJ1

beryllium oxide contains 0.5633 g of beryllium for every 1.000 g of oxygen. in 1842 russian chemist avdeev proposed the formula for beryllium oxide. before that time, it was thought that the formula was . assume that oxygen has an atomic mass of 16.00.

Answers

According to the query, they will create an ionic bond by sharing electrons to fill out their respective eight valence electrons. BeO

Here are 2.228 moles of beryllium oxide, or BeO. BeO is stated as the chemical formula for beryllium oxide. The amount of beryllium oxide that was produced weighs 555.7 grams. To determine the number of moles, The moles are calculated by dividing the substance's mass by its molar mass. Molar mass = Mass formed 55.7 grams of BeO were produced in total. BeO has a molar mass of 25g/mol. Assigning values, BeO moles = 55.7/25 BeO is made up of 2.228 moles. Therefore, 2.228 moles of beryllium oxide were produced. The ability of an element to combine with other atoms to form chemical compounds or molecules is measured by the element's valence or valency.

Learn more about Beryllium oxide here:

https://brainly.com/question/29353591

#SPJ4

How many grams of potassium
carbonate are needed to make
400.0 mL of 2.5 M solution?

K₂CO3; 138.21 g/mol



A. 21 g K₂CO3
C. 140 g K₂CO3
B. 140,000 g K₂CO3
D. 86 g K₂CO3

Answers

The grams of potassium carbonate neede to make 400ml of 2.5M solution is 186g.

How to calculate grams?

A answer's molarity tells you approximately the variety of moles of solute this is found in 1 L of answer. You can say:

Molarity(M)=moles of solute1 litre of answer Molarity(M)=moles of solute/litre of answer

We recognise that with a purpose to calculate a answer's molarity, you must recognise the variety of moles of solute this is found in 1 L i.e. a thousand mL of answer.

We can use the molar mass of a compound to decide the variety of moles gift withinside the pattern so variety of moles of a compound may be calculated via way of means of making use of the subsequent system:

Number of moles=Mass(g)Molar mass(gmol−1)Number of moles=Mass(g)/Molar mass(gmol−1)

In the given question, we already recognise the molarity in addition to quantity of the answer that are as follows:

Molarity=2.5Volume=400mL=0.4LMolarity=2.5Volume=400mL=0.4L

Substituting those given values withinside the system of molarity, we can calculate the variety of moles as depicted below:

1 =moles of solute0.4 variety of moles=1 moles of K2CO32=moles of solute0.2 variety of moles=1 moles of K2CO3

Molar mass of K2CO3K2CO3 may be calculated via way of means of including the atomic mass of every of the atom gift withinside the molecule as proven below:

Molecular mass of K2CO3=(2×K)+(1×C)+(3×O)=(2×39)+(1×12)+(3×16)=138gmol−1Molecular mass of K2CO3=(2×K)+(1×C)+(3×O)=(2×39)+(1×12)+(3×16)=138gmol−1

Now substituting the values withinside the variety of moles system, we get the mass of K2CO3K2CO3 as proven below:

1=Mass(g)138Mass(g)=69g0.five=Mass(g)138Mass(g)=138g

Hence, 138 grams of potassium carbonate K2CO3K2CO3 are had to make four hundred mL of a 2.five M answer.

For more information on moles kindly visit to

https://brainly.com/question/26416088

#SPJ1

Answer: C. 140 g K2CO3

Explanation:

Other Questions
stoker engineering co has the following items for inclusion in its statement of financial position as at the end of year 8: What is the solution to this system of equations?y=1/3x+4y=1/6x+3 Common application of deep learning in artificial intelligence Slogan pour lutter contre la pollution de lair What are two significant risks that can be understood from the program board? (Choose two.)1.) A Feature has an excess of dependencies and risks associated with it2.) Team work in process (WIP) limits are being ignored3.) Teams do not understand their Features and Epics4.) No work is planned for the Innovation and Planning (IP) Iteration5.) Features are being delivered at the end of the last Iteration Balance the chemical equation given below, and calculate the volume of nitrogen monoxide gas produced when 8.00 g of ammonia is reacted with 14.0 g of oxygen at 25C? The density of nitrogen monoxide at 25C is 1.23 g/L._____ NH3(g) + _____ O2(g) _____ NO(g) + _____ H2O(l) What would happen to a signaling pathway if phosphatases had reduced levels of function? a) There would be no change in the persistence of the response to the pathway. b) The response to the signal would persist longer after activation. c) The response to the signal would be shorter after activation. Which describes oligarchy?A. A small group rules.B. There is no rule.C. The people rule. D. A king rules. Draw a line representing the "rise" and a line representing the "run" of the line. State the slope of the line in simplest form. of the 400 employes 5% of them are manegers determine the maximum magnitude p of the loads the beam can support if the average shear stress in each pin is not to exceed 80 mpa. all pins are in double shear, and each has a diameter of 18 mm. select all the dxpressions equivalent to 7^-2 7^5 7^-3 inance professionals make decisions that fall into three distinctive areas: corporate finance, capital markets, and investments. Below is a set of decisions made by finance professionals. Categorize the decisions according to the area of finance to which they belong (corporate finance, capital markets, or investments).Decisions:(a) Anthony must make a decision on how to cut costs so that his company can generate extra cash flow to acquire assets.(b) Sachit, a trader at the New York Stock Exchange (NYSE), executes the decisions made by investors and takes action based on requests by different buyers and sellers in the market.(c) Jack works for a financial advising firm. He must create a financial plan and come up with a list of securities in which his client can invest. Jack must make decisions regarding the investments that he should recommend to his clients to include in their portfolio. why do different ip networks need to be assigned to different ports of a router? what did the democratic nations do in response 19. What's the ongoing process of discussing boundaries and what you're comfortable with called?A. ConsentOB, MindfulnessOC. RationalizoOD. Prioritize 3. in how many ways can 4 aitas, 3 bagobos and 5 tausogs be seated in a row so that all people of ethnicity are together? if two events are 300s apart on clock a how far apart are they on a clock b and b clock c when clock a reads 380 places in the philippines where insects are eaten Select 3 that apply.Choose all that you should do when you are planning to write a story or essay. Put it off until the night before it's due. Choose a topic. Don't ask any questions for clarification. Choose a genre. Develop a purpose for writing.