# What mass of potassium chlorate must be heated to give 120 cm3 of oxygen according to the...

## Question:

What mass of potassium chlorate must be heated to give 120 cm{eq}^3 {/eq} of oxygen according to the following equation?

{eq}2KClO_3(s) \to 2KCl(s) + 3O_2(g) {/eq}

## Ideal Gases Molar Volume

Assuming that a gas behaves ideally at standard temperature and pressure (STP), the approximate volume of the gas is 22.4 Liters per mole. This is derived from the ideal gas law.

## Answer and Explanation: 1

Become a Study.com member to unlock this answer! Create your account

View this answerThe following reaction is given.

{eq}\rm 2KClO_3(s) \to 2KCl(s) + 3O_2(g) {/eq}

Using the molar volume at STP, we can calculate the moles of...

See full answer below.

#### Ask a question

Our experts can answer your tough homework and study questions.

Ask a question Ask a question#### Search Answers

#### Learn more about this topic:

from

Chapter 9 / Lesson 4Learn how to find the molarity of a solution or the moles of gas in a given volume using stoichiometry. See examples of calculating moles from molarity.

#### Related to this Question

- Consider the reaction: 2KClO3 arrow 2KCl + 3O2. What mass of oxygen is formed by the decomposition of 7.11 grams of potassium chlorate?
- In the following reaction, what mass of potassium chlorate, KCIO_3, would be required to produce 273 L of oxygen, O_2 measured at STP? 2KClO_3 (s) to 2 KCl(s) + 3O_2(g)
- In the following reaction, what mass of potassium chlorate, KClO3, would be required to produce 321L of oxygen, measured at STP? 2KClO3(s) -------> 2KCl(s) + 3O2(g)
- Calculate the number of grams of oxygen that could be produced by heating 9.70 grams of potassium chlorate. 2KClO3(s) arrow 2KCl(s) + 3O2(g)
- Potassium chlorate may be synthesized by heating potassium chloride in the presence of oxygen gas. What mass of potassium chloride is needed to produce 93.45 grams of potassium chlorate? 2KCl(s) + 3O2(g) arrow 2KClO3(s)
- How many grams of oxygen (O2) can be produced from 4.80 grams of potassium chlorate by the following reaction? 2KClO3(s) arrow 2KCl(s) + 3O2(g) a. 7.20 grams b. 1.88 grams c. 0.940 grams d. 1.25 grams
- What mass of KClO3 will produce 48.0 grams of O2 if the decomposition of KClO3 is complete? KClO3 arrow KCl + O2
- The decomposition of potassium chlorate yields oxygen gas. If the yield is 95%, how many grams of KClO3 are needed to produce 10.0 L of O2? 2KClO3(s) arrow 2KCl(s) + 3O2(g)
- Potassium chlorate may be synthesized by heating potassium chloride in the presence of oxygen gas. How many moles of potassium chlorate are produced when 34.21 grams of oxygen reacts with excess potassium chloride? 2KCl(s) + 3O2(g) arrow 2KClO3(s)
- When potassium chlorate is heated, it decomposes into potassium chloride and oxygen in the reaction 2KCIO3 arrow 2KCI + 3O2. How much oxygen is liberated when 50 g of potassium chlorate is heated?
- Calculate the mass of KClO3 needed to produce 1.23 grams of O2 in the following reaction. KClO3 arrow KCl + O2
- When magnesium chlorate undergoes decomposition, oxygen gas is released in the following reaction: 2KClO3 arrow 2KCl + 3O2 When 3.50 grams of potassium chlorate is decomposed at STP, how many litters of oxygen will be produced?
- What mass of KClO3 must be decomposed to produce 12.6 L of oxygen gas at 133 degrees Celsius and 0.880 atm? 2KClO3(s) arrow 2KCl(s) + 3O2(g)
- Potassium chlorate is 75% pure 48 grams of oxygen would be produced from how much potassium chlorate?
- What mass of KClO_3 will produce 48 grams of oxygen gas if the decomposition of KClO_3 is complete? (A) 61.3 g. (B) 74.5 g. (C) 122.5 g. (D) 245.0 g.
- What mass of KCI is produced when 1.23 grams of O2 is produced in the following reaction? KClO3 arrow KCl + O2
- In a reaction where potassium chlorate is decomposed into potassium chloride and oxygen, how much oxygen can be made from 45.8 grams of potassium chlorate?
- How much oxygen gas will be produced from the decomposition of 50 grams of potassium chlorate?
- Consider the following reaction. The equation is balanced. 2KClO3(s) arrow 2KCl(s) + 3O2(g) How many grams of oxygen are produced from the complete reaction of 17.3 g of KClO3?
- When 25.0 grams of potassium chlorate (KClO3) decomposes, how many liters of O2 gas is formed at STP? 2KClO3(s) arrow 2KCl(s) + 3O2(g)
- How many grams of oxygen would be produced in the complete decomposition of 10.0 grams of KClO3? 2KClO3(s) arrow 2KCl(s) + 3O2(g)
- What mass of oxygen is consumed when 100 grams of nitrogen reacts completely in the following equation? N2 + O2 arrow 2NO
- How many grams of oxygen form when 2.38 grams of KClO3 completely reacts? 2KClO3 arrow 2KCl + 3O2
- Potassium chlorate decomposes to produce oxygen gas and potassium chloride. If you have 1.65 lbs of potassium chlorate how much oxygen (in grams) could be produced by the decomposition reaction?
- How many grams of oxygen form when 0.348 moles of KClO3 completely react? 2KClO3 arrow 2KCl + 3O2
- How many grams of oxygen are produced from the complete reaction of 1.32 moles of KClO3? 2KClO3(s) arrow 2KCl(s) + 3O2(g)
- When 523 grams of KClO3 decomposes, what mass of KCl is formed? 2KClO3(s) arrow 2KCl(s) + O2(g)
- Potassium chlorate may be synthesized by heating potassium chloride in the presence of oxygen gas. How many moles of potassium chlorate are produced when 8.56 moles of oxygen reacts with excess potassium chloride? 2KCl(s) + 3O2(g) arrow 2KClO3(s)
- When potassium chlorate is heated, potassium chloride and oxygen gas are formed. The percent yield of the reaction is 83.2%. How much potassium chlorate must be decomposed to produce 198.5 grams of oxygen?
- Calculate the weight of potassium chlorate needed to produce 24.1 L of oxygen at 555 mm Hg and 20 C. 2 KClO3 = 2 KCl + 3O2
- For the reaction 2KClO3(s) arrow 2KCl(s) + 3O2(g), calculate how many grams of oxygen form when 0.361 grams of KClO3 completely reacts.
- How many grams of oxygen form when 23.5 grams of KClO3 completely react? 2KClO3 arrow 2KCl + 3O2
- How many grams of oxygen form when 86.9 grams of KClO3 completely react? 2KClO3 arrow 2KCl + 3O2
- A common laboratory method for preparing oxygen gas involves decomposing potassium chlorate (KClO3), as shown by the following reaction. 2KClO3 arrow 2KCl + 3O2 Based on this equation, how many grams
- Consider the following reaction: 2KClO3(s) arrow 2KCl(s) + 3O2(g). How many grams of oxygen are produced from the complete reaction of 17.3 grams of KClO3?
- When magnesium chlorate undergoes decomposition, oxygen gas is released in the following reaction: 2KClO3 arrow 2KCl + 3O2 When 3.50 grams of potassium chlorate is decomposed at STP, how many litters
- How many moles of KClO3 are needed to produce 1039 L of O2 according to the following equation? 2KClO3 arrow 2KCl(s) + 3O2(g)
- Calculate the theoretical mass percentage of oxygen in potassium chlorate ( K C l O 3 ).
- Potassium chlorate decomposes into potassium chloride and oxygen gas. What volume of oxygen gas is produced by the decomposition of 61.5 grams of potassium chlorate at STP?
- Potassium chlorate may be synthesized by heating potassium chloride in the presence of oxygen gas. How many molecules of O2 are needed to produce 0.473 grams of potassium chlorate? 2KCl(s) + 3O2(g) arrow 2KClO3(s)
- The decomposition of potassium chlorate (KClO_3) is used as a source of oxygen in the laboratory. How much potassium chlorate is needed to produce 10.2 mol of oxygen? Answer in units of mol.
- The decomposition of potassium chlorate, KClO_3, gives oxygen gas and solid potassium chloride. How many grams of KClO_3 are needed to produce 5.00 L of Oxygen gas at STP? Suppose that the reaction de
- How many grams of potassium chlorate, KClO_3(s) must decompose to produce potassium chloride, KCl(s), and 1.45 grams of oxygen gas?
- How many grams of oxygen can be formed if 295.0 g KClO_3 react? Use the reaction below to solve this question. 2KClO_3 right-arrow 2KCl + 3O_2
- Use the following, balanced equation for the question below: 2KClO_3(s) to 2KCl(s) + 3O_2(g). How many moles of oxygen gas are produced from 151 grams of KClO_3?
- If 0.336 grams of potassium chloride is produced in the following reaction, how many moles of oxygen are also produced? KClO3 arrow KCl + O2
- When heated, potassium chlorate decomposes to potassium chloride and gaseous molecular oxygen. 2KClO3 arrow 2KCl + 3O2 a. What is the theoretical yield of oxygen when 5.00 grams of potassium chlorate decomposes? b. Calculate the percent yield if a 5.00-gr
- How many moles of oxygen are produced when 3 moles of potassium chlorate decomposes completely?
- Consider the following balanced reaction: 2KClO3(s) arrow 2KCl(s) + 3O2(g). How many grams of oxygen are produced from the complete reaction of 17.3 grams of KClO3?
- 2KClO3 arrow 2KCl + 3O2 8.20 grams of KClO3 decompose to form potassium chloride and oxygen gas. How many grams of KCl are produced in this reaction?
- What mass of potassium chloride is needed to produce 93.45 g potassium chlorate?
- What mass of nitric oxide is produced by the reaction of 5.5 grams of oxygen gas in the following reaction? NH3 + O2 arrow NO + H2O
- Small quantities of oxygen can be prepared in the lab by heating potassium chlorate, KClO3(s). The equation for the reaction is: 2KClO3 \rightarrow 2KCl + 3O2 Calculate how many grams of O2(g) can be produced from heating 96.8 grams of KClO3(s).
- Potassium chlorate may be synthesized by heating potassium chloride in the presence of oxygen gas. How many moles of potassium chloride would react with 8.56 moles of oxygen? 2KCl(s) + 3O2(g) arrow 2KClO3(s)
- 15.45 grams of solid potassium chlorate decomposes when heated to form potassium chloride and oxygen gas. Assuming a 100% yield, how many grams of solid potassium will be produced?
- How many grams of oxygen, O_2, would be produced in the complete decomposition of 10.0 g of KClO_3? The molar masses are: O_2 = 32.0 g, KClO_3 = 122.6 g the balanced equation is: 2KClO_3 \to 2KCl + 3O_2
- Use the following balanced equation to answer the question: 2 KClO_3 to 2KCl + 3O_2 A chemist is producing oxygen gas in the laboratory. If 122.6 g of KClO_3 are available, how many grams of KCl and O_2 can the chemist produce?
- How many moles of oxygen are formed when 45.7 grams of KClO3 completely decompose? 2KClO3 arrow 2KCl + 3O2
- According to the following chemical equation: 2KClO_3 \rightarrow 2KCl + 3O_2 How many grams of KClO_3 are needed to produce 32.0 g of O_2? a. 122.5 g KClO_3. b. 163.4 g KClO_3. c. 81.7 g KClO_3.
- How many grams of potassium are in 7.3 g of potassium chlorate?
- How many grams of oxygen can be produced from the decomposition of 100 g of KClO3?
- 2KCIO_3 \rightarrow 2KCI + 3O_2 How many moles of oxygen are produced by the decomposition of six moles of potassium chlorate?
- Potassium reacts with oxygen to make potassium oxide, K2O. What is the maximum mass of K2O(s) that could be prepared from 8.18 grams of K(s) and 2.72 grams of O2(g)?
- In the reaction, 2KClO3 arrow 2KCl + 3O2, 8.20 grams of KClO3 decompose to form potassium chloride and oxygen gas. How many grams of KCl are produced in this reaction?
- For the reaction ; 2KClO_3 rightarrow 2KCl + 3O_2. (a) What mass of O_2 can be made from heating 125 g of KClO_3?
- How many grams of oxygen can be produced from the decomposition of 100 grams of KClO3?
- How much oxygen, O2, is produced by the decomposition of 25 grams of KClO3?
- For the reaction: 2KClO_3(s) \rightarrow 2KCl(s) + 3O_2(g) Calculate how many grams of oxygen form when 22.5 mg KClO_3 completely reacts.
- If 59.3 grams of potassium chlorate decomposes, how many grams of oxygen gas can be produced? (Explain why each choice is correct or incorrect.) 2KClO3 to 2KCl + 3O2 a) 15.5 g O2 b) 23.2 g O2 c) 31.0 g O2 d) 46.4 g O2
- How many moles of oxygen are formed when 58.6 g of KNO_3 decomposed according to the following reaction? The molar mass of KNO_3 is 101.11 g/mol. 4KNO_3 (s) to 2K_2O (s) + 2N_2 (g) + 5O_2 (g)
- For the reaction 2KClO3(s) arrow 2KCl(s) + 3O2(g), calculate how many grams of oxygen form when 83.6 kg of KClO3 completely reacts. Express your answer in grams to three significant figures.
- What volume of oxygen, measured at STP, can be produced by the decomposition of potassium chlorate if 20.0 grams of the salt (KClO3) is completely decomposed into potassium chloride and oxygen gas? 2KClO3(s) arrow 2KCl(s) + 3O2(g)
- Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KClO_3(s). The equation for the reaction is: 2KCI_3 \to 2KCL + 3O_2 Calculate how many grams of O_2(g) can be produced from heating 49.9 grams of KClO_3(s).
- Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KClO3(s). a) Find the equation for the reaction b) Calculate how many grams of O2(g) can be produced from heating 68.7 grams of KClO3(s).
- For the reaction 2KClO3(s) arrow 2KCl(s) + 3O2(g), calculate how many grams of oxygen form when 2.72 grams of KClO3 completely reacts. Express your answer in grams to one decimal place.
- How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g mol^{-1}. 4KNO3(s)\to 2K2O(s)+ 2N2(g)+ 5O2(g)
- How many moles of O2 are produced when 6.75 moles of KClO3 reacts in the following reaction? 2KClO3 arrow 2KCl + 3O2
- If 120. grams of KClO_3 reacts, how many grams of oxygen are produced?
- 1.) How many grams of oxygen gas , O2, are produced when 65.5 grams of sodium chlorate, NaClO3, decomposes in the following reaction using mole ratio. 2NaClO3 (s) --> 2NaCl (s) + 3O2 (g) 2.) How man
- Consider the reaction 2 KClO3(s) \rightarrow 2 KCl(s) + 3 O2(g) How many grams of oxygen are produced from the complete reaction of 1.32 mol of KClO3? Molar Mass of KClO3 = 122.50 g/mol. Molar Mass of KCl = 74.55 g/mol. Molar Mass of O2 = 32.00 g/
- How many moles of MnO3 are produced when 4.30 kg of oxygen gas completely reacts according to the balanced chemical equation? 2Mn(s) + 3O2(g) arrow 2MnO3(s)
- In the equation 2KClO3 arrow 2KCl + 3O2, how many moles of oxygen are produced when 3.0 moles of KClO3 decomposes completely? a. 3.0 moles b. 1.0 moles c. 4.5 moles d. 2.5 moles
- Magnesium chlorate undergoes decomposition, oxygen gas is released in the following reaction: 2KClO_3 -> 2KCl + 3O_2. When 3.50 grams of potassuim chlorate
- Estimate the number of oxygen atoms contained in the amount of oxygen gas that forms when 58.6 grams of KNO3 decomposes according to the following chemical equation. 4KNO3(s) arrow 2K2O(s) + 2N2(g) + 5O2(g)
- Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO_3(s) to 2K_2O(s) + 2N_2(g) + 5O_2(g). To produce 56.6 kg of oxygen, how many moles of KNO_3 mus
- Calculate the mass of O_2 produced if 3.450 g potassium chlorate is completely decomposed by heating in presence of a catalyst (manganese dioxide).
- How many grams of KCl form when 0.348 moles of KClO3 completely react? 2KClO3 arrow 2KCl + 3O2
- For the reaction 2KClO3(s) arrow 2KCl(s) + 3O2(g), calculate how many grams of oxygen form when 22.5 mg of KClO3 completely reacts. Express your answer in grams to three significant figures.
- How many moles of oxygen gas are produced from 151 grams of KClO_3?
- Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KCIO_3(s). The equation for the reaction is 2 KCIO_3 rightarrow 2KCI + 3O_2 (a) Calculate how many grams
- When chlorine gas is passed into a hot KOH solution, KClO3 is one of the products. What weight of Cl2 is theoretically required to produce 12.3 grams of KClO3? KOH + Cl2 arrow KClO3 + H2O + KCl
- For the reaction shown, calculate how many grams of oxygen form when each quantity of reactant completely reacts. 2 KClO3(s) ? 2 KCl(s) + 3 O2(g) A) 2.72 g KClO3 B) 0.361 g KClO3 C) 83.6 kg KClO3 D) 2
- How many grams of O2 can be produced from heating 29.6 grams of KClO3? 2KClO3 arrow 2KCl + 3O2
- How many grams of O2 can be produced from heating 60.7 grams of KClO3? 2KClO3 arrow 2KCl + 3O2
- Consider the reaction 2KClO_3(s) ---> 2KCl(s) + 3O_2(g). How many grams of oxygen are produced from the complete reaction of 1.32 mol of KClO_3?
- Consider the reaction 2KCl_3(s) \to 2KCl(s) + 3O_2(g): How many grams of oxygen are produced from the complete reaction of 2.15 mol of KClO_3?
- How many grams of KCl form when 2.38 grams of KClO3 completely reacts? 2KClO3 arrow 2KCl + 3O2
- What weight of O is produced when 3.00 g of KClO_3 (s) is decomposed according to the reaction 2KClO_3(s) to 2KCl(s)+ 3O_2(g)? A. 0.392 g. B. 0.587 g. C. 0.783 g. D. 1.17 g.
- Calculate how many grams of O_2(g) can be produced from heating 94.3 grams of KClO_3 (s).
- 2 KClO3 \rightarrow 2 KCl + 3 O2 According to this balanced chemical equation, how many moles of oxygen gas are produced from the reaction of one mole of KClO3? How many grams of O2 are produced?