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Why normality of naoh is decrease?
Normality of NaOH = molarity of OH- , so for pure NaOH they are equal.When kept in open air the OH- ions come in contact with the slightly (and slowly) soluble carbon dioxide (CO2), which is an ACID forming oxide, thus reacting with the strong base hydroxide:CO2 + H2O -->H2CO3immediately followed by:H2CO3 + OH- --> HCO3-and eventually followed by a second step:HCO3- + OH- --> CO32-While hydroxide is 'disappearing' from solution, it decreases 'its' normality (= concentration of ions, reactive to acids)
What is the normality of a 6.35 M H2SO4 is?
0.08 n
Why did chemists develop the concept of molarity?
It helps to quantify the concentration of solute in any solution - molarity is calculated by dividing the amount of solute by the total volume of the solution. The unit of molarity is moles/L.
What is the difference between molarity and molar concentration, and how do they relate to each other in the context of solution chemistry?
Molarity and molar concentration are often used interchangeably, but they have a subtle difference. Molarity specifically refers to the number of moles of solute per liter of solution, while molar concentration is a more general term that can refer to any concentration expressed in moles per unit volume. In the context of solution chemistry, molarity is a specific type of molar concentration that is commonly used to quantify the amount of solute in a solution.
What is the resulting molarity of a solution made by mixing equal volumes of solutions of HCl and NaOH each of molarity 1M?
As a thought experiment - suppose you mixed one liter of 1M HCl with 1 liter of 1M NaOH. The resulting solution (neglecting any density changes associated with mixing) would contain 2 liters with 1 mole of Cl- and 1 mole of Na+ with the balance being water (the H+ from the HCl and the OH- from the NaOH would just become part of the water). This would give you a 0.5 M solution of NaCl.
What does normality mean in chemistry?
Normality is a way of expressing concentration, and is not used widely any more. It is the equivalent wt of a substance per liter of solution. The equivalent weight will depend on the reaction that take place, and can be the same as the molecular weight. Example: HCl has same equiv. wt. as mol. wt. because it has only 1 equivalent, i.e. one H. H2SO4 has TWO equivalents (2 H+) so, 1 molecular wt will be equal to 2 equivalent wts, and normality will be 2x the molarity.
How are molarity and concentration related?
"Normality" refers to the activity of a reagent: gram equivelant dissolve in a liter? "Molarity" refers the numbers of moles of the solute present per litre of the solution. "Molality" refers the numbers of moles of solute present in 1000 grams of the solvent. Thus, for hydrochloric acid (HCl) and sodium hydroxide (NaOH) the normality is equal to the molarity. But for dibasic substances like sulfuric acid (H2SO4) or barium hydroxide Ba(OH)2, the normality is twice the molarity. For a tribasic substance, normality would be three times the molarity and so forth.Molarity measures the number of moles of a substance present in per liter of solution. Normality is basically a measure of concentration that is in the mixture of solution.
Why normality of naoh is decrease?
Normality of NaOH = molarity of OH- , so for pure NaOH they are equal.When kept in open air the OH- ions come in contact with the slightly (and slowly) soluble carbon dioxide (CO2), which is an ACID forming oxide, thus reacting with the strong base hydroxide:CO2 + H2O -->H2CO3immediately followed by:H2CO3 + OH- --> HCO3-and eventually followed by a second step:HCO3- + OH- --> CO32-While hydroxide is 'disappearing' from solution, it decreases 'its' normality (= concentration of ions, reactive to acids)
What is the normality of a 6.35 M H2SO4 is?
0.08 n
Why did chemists develop the concept of molarity?
It helps to quantify the concentration of solute in any solution - molarity is calculated by dividing the amount of solute by the total volume of the solution. The unit of molarity is moles/L.
Because of this amendment the equal protection provision forbids any state and its local governments from discriminating against a group of people.?
Amendment 14- all men are equal
Molarity is the amount of moles per?
unit volume of a solution. It is calculated by dividing the number of moles of solute by the volume of the solution in liters. Molarity helps in expressing the concentration of a solute in a solution.
Does the total electoral votes for any state equal two plus the number of its House representatives?
Yes, that is correct. The two represents the two senators that every state has.
What is the molarity of Na Cl in a graduated cylinder with 100ml of distilled water?
There isn't enough to answer your question. You've given a volume, but haven't given a weight or amount of moles. I also do not know if there is a relevance to your including the graduated cylinder. A solution should always be made up in a volumetric flask.
What amendment is often known as the equal protection Amendment because it guaranteed all citizens equal protection of the law?
Amendment 14, ratified July 9, 1868, which says in section 1: "1. All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws."
What describes discrimination that is allowed under the equal protection clause?
The equal protection clause of the 14th amendment to the US constitution applies to the states and forbids them from denying any person equal protection of the law. This clause has been interpreted to forbid a state and any of its subsidiarity entities from treating any person different in their various institutional activities. Makes you wonder doesn't it how gay marriage can be forbidden by State laws when it's treating "people," who are not criminals different. The equal protection clause does not apply to private entities (hospitals, stores, restaurants, clubs, etc.), only the State.
What is the difference between molarity and molar concentration, and how do they relate to each other in the context of solution chemistry?
Molarity and molar concentration are often used interchangeably, but they have a subtle difference. Molarity specifically refers to the number of moles of solute per liter of solution, while molar concentration is a more general term that can refer to any concentration expressed in moles per unit volume. In the context of solution chemistry, molarity is a specific type of molar concentration that is commonly used to quantify the amount of solute in a solution.
