Answer:
1,42M
Explanation:
Molar concentration is given in moles of solute per liter o solution. Assuming you have 100g of solution:
10g KCl × (1mol / 74,55g) = <em>0,134 moles of KCl</em>
As you have 100g of solution:
100g × (1mL / 1,06g) × (1L / 1000mL) = <em>0,0943L</em>
<em> </em>
That means molar concentration is:
0,134 moles of KCl / 0,0943L = <em>1,42M</em>
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I hope it helps!
Answer:
164atm
Explanation:
Given parameters:
Initial pressure = 150atm
Initial temperature = 27°C = 27 + 273 = 300K
New temperature = 55°C = 328K
Unknown:
New pressure = ?
Solution:
At constant volume, the pressure of a given gas varies directly with the absolute temperature.
Mathematically;
=
P and T are pressure and temperature values
1 and 2 are the initial and new states
Insert the parameters and solve;
=
300P₂ = 150 x 328
P₂ = 164atm
<u>Answer:</u> The correct answer is it is an example of combustion.
<u>Explanation:</u>
Combustion reaction is defined as the reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide gas and water molecule.
General equation for these reactions are given as:
Redox reaction is a type of reaction in which reduction and oxidation reaction takes place simultaneously. One substance goes oxidation reaction and another goes reduction reaction.
Combustion reactions are also termed as oxidation reactions because oxygen is getting added to both carbon and hydrogen atoms.
Hence, the correct answer is it is an example of combustion.
Answer:
Explanation:
Hello,
In this case, given the molality of the solution which is 2.88 m (mol/kg) we can compute the moles of sodium hydroxide that are dissolved in the 232 grams of water (0.232 kg) as follows:
Then, by using the molar mass of sodium hydroxide we compute the grams:
Regards.
Uno de los componentes del “sal de uvas”, es el bicarbonato de sodio, es un sólido cristalino blanco, debido a su capacidad de neutralizar el exceso de ácido clorhídrico del estómago.
La acidez estomacal es ocasionada por un exceso en la producción de ácido clorhídrico (HCl) en el jugo gástrico del estómago. Uno de los componentes del “sal de uvas”, utilizada como antiácido, es el bicarbonato de sodio (NaHCO₃), es un sólido cristalino blanco, que neutraliza el exceso de ácido clorhídrico. La reacción de neutralización es:
HCl(aq) + NaHCO₃(aq) ⇒ NaCl(aq) + H₂O(l) + CO₂(g)
Uno de los componentes del “sal de uvas”, es el bicarbonato de sodio, es un sólido cristalino blanco, debido a su capacidad de neutralizar el exceso de ácido clorhídrico del estómago.
Puedes aprender más sobre neutralización aquí: brainly.com/question/23261152