Переклад цього тексту: "Перебіг хімічної реакції на середньому рівні школи".
Розрахуйте вагові кількості використаних реактивів та кількість утворених продуктів реакції, якщо розчину кислоти аскорбінової в водному середовищі (100 грамів) додали поживної соди.
Я не впевнений, але ймовірно реакція протікає за наступним рівнянням:
C6H8O6 + NaHCO3 = C6H7NaO6 + H2O + CO2
C6H8O6 = 100 грамів
Скільки грамів NaHCO3 потрібно додати? = ???
Скільки грамів C6H7NaO6 утворюється? = ???
Скільки грамів H2O утворюється? = ???
Скільки грамів CO2 утворюється? = ???
Я запитав це питання на bryk.pl, але не отримав відповіді!
Читайте більше за посиланням https://www.bryk.pl/pytania/chemia/chemia-ogolna/7174-oblicz-ilosci-wagowe-zuzytych-skladnikow-reakcji-oraz-ilosc-powstalych-produktow-reakcji-jezeli.html#utm_source=paste&utm_medium=paste&utm_campaign=opera
Розрахуйте вагові кількості використаних реактивів та кількість утворених продуктів реакції, якщо розчину кислоти аскорбінової в водному середовищі (100 грамів) додали поживної соди.
Я не впевнений, але ймовірно реакція протікає за наступним рівнянням:
C6H8O6 + NaHCO3 = C6H7NaO6 + H2O + CO2
C6H8O6 = 100 грамів
Скільки грамів NaHCO3 потрібно додати? = ???
Скільки грамів C6H7NaO6 утворюється? = ???
Скільки грамів H2O утворюється? = ???
Скільки грамів CO2 утворюється? = ???
Я запитав це питання на bryk.pl, але не отримав відповіді!
Читайте більше за посиланням https://www.bryk.pl/pytania/chemia/chemia-ogolna/7174-oblicz-ilosci-wagowe-zuzytych-skladnikow-reakcji-oraz-ilosc-powstalych-produktow-reakcji-jezeli.html#utm_source=paste&utm_medium=paste&utm_campaign=opera

0 users upvote it!
4 answers
- The mass of baking soda (NaHCO3) is 200 grams.
- The mass of C6H7NaO6 is 200 grams.
- The mass of H2O is 200 grams.
- The mass of CO2 is 200 grams.
All these masses correspond to the reaction of 100 grams of ascorbic acid with 200 grams of baking soda in an aqueous environment.
- The mass of baking soda (NaHCO3) is 200 grams.
- The mass of C6H7NaO6 is 200 grams.
- The mass of H2O is 200 grams.
- The mass of CO2 is 200 grams.
All these masses correspond to the reaction of 100 grams of ascorbic acid with 200 grams of baking soda in an aqueous environment.
Machine translated
1 like
- The mass of sodium bicarbonate (NaHCO3) is 200 grams.
- The mass of C6H7NaO6 is 200 grams.
- The mass of H2O is 200 grams.
- The mass of CO2 is 200 grams.
All these masses correspond to the reaction of 100 grams of ascorbic acid with 200 grams of sodium bicarbonate in an aqueous environment.
- The mass of sodium bicarbonate (NaHCO3) is 200 grams.
- The mass of C6H7NaO6 is 200 grams.
- The mass of H2O is 200 grams.
- The mass of CO2 is 200 grams.
All these masses correspond to the reaction of 100 grams of ascorbic acid with 200 grams of sodium bicarbonate in an aqueous environment.
Machine translated
1 like
You need to first calculate how many moles of ascorbic acid you have in 100 g (yes - it should be written ascorbic acid and not ascorbinic acid). The reaction with soda produces sodium ascorbate (information and structural and sum formula can be found here: https://en.wikipedia.org/wiki/Sodium_ascorbate).) water and carbon dioxide. To calculate the quantity of moles, divide the mass by the molar mass (which is the weight of one mole).
100 g / (176.13 g/mol) = 0.568 mol (molar mass taken from Wikipedia, you can also calculate it by summing the mass of individual elements).
Now look at the reaction equation - from one mole of acid and one mole of soda, you get one mole of sodium ascorbate, one mole of CO2 and one mole of water.
All compounds react in a 1:1 ratio, so having 0.568 moles of acid will give you 0.568 moles of each product and react 0.568 moles of each substrate.
Now you need to convert this quantity of moles into the mass of each substance, by multiplying it by their molar mass (the mass of one mole).
NaHCO3 → 0.568 mol * 84.01 g/mol = 47.70 g
C6H7NaO6 → 0.568 mol * 198.11 g/mol = 112.49 g
H2O → 0.568 mol * 18.01 g/mol = 10.23 g
CO2 → 0.568 mol * 44.01 g/mol = 24.99 g
I see that artificial intelligence and humans give different answers here, so you can always check if your calculations are correct by adding the masses on one side and on the other side. They should be equal, according to the law of mass.
100.00 + 47.70 = 112.49 + 10.23 + 24.99 = 147.70
Ignoring the topic:
In Mrs. Agnieszka's case, we have a wonderful multiplication of 100 grams of vitamin C + 200 grams of soda, which gives us 200 g of ascorbate, 200 g of water, and 200 g of carbon dioxide. Not a bad business - we gave only 300 g and got 600 g. Regardless of what we produce in this way, I'm in.
Our botAI didn't do well either, giving 100 grams of soda and 100 grams of vitamin, we got 100 grams of ascorbate, 18 grams of water, and 44 grams of carbon dioxide. Here we have a gigantic loss of mass - from 200 g - 100 g - 18 g - 44 g = 38 g
According to the famous formula E=mc2, we would suddenly release about 3 trillion Joules of energy, which is a small atomic explosion. I could be interested too, but maybe a bit more cautiously - let's start with mixing a few picograms of vitamin C with a few picograms of sodium bicarbonate and maybe we won't explode...
You need to first calculate how many moles of ascorbic acid you have in 100 g (yes - it should be written ascorbic acid and not ascorbinic acid). The reaction with soda produces sodium ascorbate (information and structural and sum formula can be found here: https://en.wikipedia.org/wiki/Sodium_ascorbate).) water and carbon dioxide. To calculate the quantity of moles, divide the mass by the molar mass (which is the weight of one mole).
100 g / (176.13 g/mol) = 0.568 mol (molar mass taken from Wikipedia, you can also calculate it by summing the mass of individual elements).
Now look at the reaction equation - from one mole of acid and one mole of soda, you get one mole of sodium ascorbate, one mole of CO2 and one mole of water.
All compounds react in a 1:1 ratio, so having 0.568 moles of acid will give you 0.568 moles of each product and react 0.568 moles of each substrate.
Now you need to convert this quantity of moles into the mass of each substance, by multiplying it by their molar mass (the mass of one mole).
NaHCO3 → 0.568 mol * 84.01 g/mol = 47.70 g
C6H7NaO6 → 0.568 mol * 198.11 g/mol = 112.49 g
H2O → 0.568 mol * 18.01 g/mol = 10.23 g
CO2 → 0.568 mol * 44.01 g/mol = 24.99 g
I see that artificial intelligence and humans give different answers here, so you can always check if your calculations are correct by adding the masses on one side and on the other side. They should be equal, according to the law of mass.
100.00 + 47.70 = 112.49 + 10.23 + 24.99 = 147.70
Ignoring the topic:
In Mrs. Agnieszka's case, we have a wonderful multiplication of 100 grams of vitamin C + 200 grams of soda, which gives us 200 g of ascorbate, 200 g of water, and 200 g of carbon dioxide. Not a bad business - we gave only 300 g and got 600 g. Regardless of what we produce in this way, I'm in.
Our botAI didn't do well either, giving 100 grams of soda and 100 grams of vitamin, we got 100 grams of ascorbate, 18 grams of water, and 44 grams of carbon dioxide. Here we have a gigantic loss of mass - from 200 g - 100 g - 18 g - 44 g = 38 g
According to the famous formula E=mc2, we would suddenly release about 3 trillion Joules of energy, which is a small atomic explosion. I could be interested too, but maybe a bit more cautiously - let's start with mixing a few picograms of vitamin C with a few picograms of sodium bicarbonate and maybe we won't explode...
Machine translated

1 like
Machine translated