# Questions tagged [stoichiometry]

Stoichiometry refers to the relationship between the amounts of substances of the reactants and the amount of substances of the formed products. This tag should be used for specific questions about chemical reaction equations.

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### Stoichiometry Questions [closed]

How many grams of carbon monoxide are needed to produce 345 grams of carbon dioxide? Fe2O3 + 3 Co ---> 3c CO2 + 2Fe How many moles of oxygen gas must be used to produce 15 grams of carbon dioxide? ...
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### 10 g of Carbon is burnt with 22g of O2 to produce both CO and CO2 without any Limiting Reagent. Find mass of CO and CO2 produced [closed]

I read a question as stated above. Is this reaction even possible because as far as I know CO is only produced when there is not enough oxygen. In case it is correct, please provide me with an answer.
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### Volume percentage [closed]

When we say that nitrogen occupies 78% , oxygen 21% and other gases 1% by volume of the total volume of air, what do we actually mean by it? I am confused because I have been told that molecules of ...
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### Acids give H+ in a reaction thus called reducing agent. But according to Lewis theory of acid and base, anything accepting pair of electron is acid [closed]

Now as acids accept electrons and so must be called oxidizing agent. and I feel it to be a bit contradicting. please clarify if any misconception
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### What is the fraction by weight of KBr in the original sample? [closed]

A mixture of KBr and NaBr weighing 0.5600g is treated with Ag+(aq) , and all the bromide ion is recovered as 0.9700g pure AgBr . What is the fraction by weight of KBr in the original sample?? First ...
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### 4.1 grams of Cr is added to 7.6 grams of Cl2 to produce CrCl3 [closed]

The Actual Yield of CrCl3 is 10.5 grams -Find the Balanced Chemical Equation -Determine the Theoretical Yield of CrCl3 -Determine the limiting reactant -Determine the excess reactant and how much is ...
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### When diluting 10 g of KI into 50 ml of water, what is the concentration of the solution in volume percentage? [closed]

Assume that the density of KI is 0.2 g/cm^3. The way I got is that the solution weighs 10g + 50g = 60g, so the volume of solution is 60 / 0.2 = 300 cm^3. But I cannot figure out what is the volume of ...
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### Calculation of the concentration of CH3COOH in an acid-base solution with a given resulting pH [closed]

I had some trouble understanding how to calculate the concentration of acetic acid in this question: What should be the concentration of 0.1 liter of CH3COOH to can obtain a pH of 6.8 after the acid-...
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### What products are formed when KMnO4 and KI react with each other in “weakly basic” medium?

While solving JEE Advanced 2020 (Paper 2) questions, I came across this particular question: According to the final answer key, its answer is 6. In my chemistry book (NCERT Chemistry), the following ...
1answer
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### Ratio of carbon monoxide and carbon dioxide when carbon and oxygen are made to react [duplicate]

$\pu{12 g}$ of $\ce{C}$ reacts with $\pu{64 g}$ of $\ce{O2}$ to give a mixture of $\ce{CO}$ and $\ce{CO2}$. Find amount of $\ce{CO}$ and $\ce{CO2}$ at the end of reaction. What I tried was to let x ...
2answers
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