Observations: Burette Reading (ml) Volume of sample (ml) Normality of NazS203 solution (N) Volume of NazS203 solution (ml) (Final Value - Initial Value) Initial Final Value Value 201 10.00 4.5 4.5 Dissolved Oxygen (mg/l) • Formula Check Dissolved Oxygen NnazSzO3 x VNaz5203 x 8000 (D.O.) as mg/l Volume of the sample Nyazs203 = Normal of Naz S203 VNaz8z03 = Volume of Na28203

Q: Mass of beaker 50.5g Mass of marble before reaction 3.0g Mass of marble after reaction…

A: Formula of marble CaCO3 Chemical reaction CaCO3 (s)  + 2 HCl (aq) →CaCl2 (aq) + CO2 (g) + H2O (l)…

Q: 34, f 750 mL of a certain solution contains 50.0 g Na,So, the sodium ion concentration, [Na"], is

A:

Q: Determine the moles of sodium carbonate that need to be taken from the concentrated solution. (To…

A: Given data : Concentrated solution conc. (M1) = 2.80 M Diluted solution conc. (M2) = 0.200 M Diluted…

Q: [References] Use the References to access important values if needed for this question. In the…

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Q: What is the concentration of 415 mL AgNo3 solution if 45.0 grams of AgNo3 is used to male that…

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Q: In the laboratory you dissolve 17.1 g of potassium fluoride in a volumetric flask and add water to a…

A: Molarity is the  number of moles of solute dissolved per litre volume of a given solution.The…

Q: Why does salt dissolve in water? What is happening at the molecular level?

A: *  Salt dissolve in water, because the covalent bonds of water are stronger than the ionic bonds in…

Q: The definition of molarity (a concentration unit) is moles of ____ _____ per liter of ____ _____

A: Molarity is defined as number of mole of sulute divide by volume of solution in liter.   Unit of…

Q: If 0.175 moles of NaCl are dissolved in a 250.0 mL solution, what is the concentration of the NaCl…

A: Given, Moles of NaCl = 0.175 moles Volume of solution = 250 mL = 0.25 L { NOTE : 1mL = 10^-3 L }

Q: РОН (35) (39) H* Molarity (36) 1*107 OH Molarity (37) (40) pH 3 (38)

A: Fill in the blanks with suitable formula---

Q: What is the concentration in molarity of the cations that remain in solution?

A: The net ionic reaction is Mg2+(aq) + 2OH-(aq) → Mg(OH)2(s).

Q: What volume, in mL, of a 4.75 M phosphoric acid solution is needed to neutralize 13.88 mL of a 6.25…

A: Phosphoric acid reacts with potassium hydroxide to form sodium phosphate and water. The hydrogen ion…

Q: What are the products that form when magnesium metal is reacted with concentrated hydrochloric acid?…

A: When a metallic Substance reacts with concentrated hydrochloric acid then metallic salt nd Hydrogen…

Q: A student added 21.8 mL sodium hydroxide base from the buret to reach the end point of the…

A: Given: volume of NaOH=21.8 mLMolarity of NaOH=0.244 M To calculate: Moles of sodium hydroxide and…

Q: If 0.0202 mol CaCl, is dissolved in water to make a 0.790 M solution, what is the volume of the…

A: 1- First we will determine the volume of water in L unit :   We know that,  Molarity =  [ moles /…

Q: If 2.500 L of a 2.000 M HCl solution is diluted to a concentration of 0.1000 M, what is the volume…

A: The volume of resulting diluted solution is determined by using the relation M1V1 = M2V2.

Q: 0.136 moles of NaCl are dissolved in a 250.0 mL solution, what is the concentration of the NaCl…

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Q: If 50 mL of 0.5 mol / L KBr solution is mixed with 100 mL of the same solution, the resulting KBr…

A: Given  50 ml 0.5 M solution of KBr And also 100 mL  same solution  means concentration  is same I.e…

Q: 1. Copper(II) chloride breaks down in solution to form which copper ion?   2. During the titration…

A: 1.) We would write dissociation equation of Copper (II) chloride.    2.) In vinegar , Acetic acid is…

Q: The molarity of an aqueous solution of sodium hydroxide, , is determined by titration against a  M…

A: For solving the problem: NaOH(aq)  +  HNO3(aq)  →  NaNO3(aq)  +  H2O(l) For the neutralization,…

Q: Solubility Why does salt dissolve in water? What is happening at the molecular level?

A: Polar molecules are the molecules having non zero dipole moment and non polar molecules have zero…

Q: Hydrogen chloride gas does not conduct but when mixed with water to form hydrochloric acid, it does.…

A: According to arrhenius concept : Acidic properties are shown only when the given substance produces…

Q: What is the concentration of nitrate ions in a solution that contains 0.900 M aluminum nitrate?

A: We have to find the concentration of nitrate ions in the solution that contains 0.900 M aluminum…

Q: A solution is prepared by dissolving 20.0 g of NH3 in 255.0 g of water. The density of the resulting…

A: Given, MSolute of NH3 = 20.0 g MSolvent of water= 255.0 g MSolution  = 275.0 g DSolution  = 0.974…

Q: Which of the following could cause errors in measurement of the percent chloride? Group of answer…

A: A. Hydrated precipitate and heat: While heat can cause issues if applied too strongly (as mentioned…

Q: How many mL of 0.075 M potassium hydroxide are required to neutralize 50.0 mL of 0.350 M sulfuric…

A: In chemistry, molarity is defined as parameter which is used to measure the solution concentration.…

Q: If 0.0578 mol CaCl, is dissolved in water to make a 0.780 M solution, what is the volume of the…

A: Given  Moles of CaCl2 is 0.0578 moles molarity of solution is 0.78 M Volume of solution is…

Q: How many moles of precipitate will be formed when 70.0 mL of .150 M AgNO3

A: You have molarity of AgNO3 = 0.15 M Volume  of AgNO3 = 70.0 mL = 0.07 L You know that Precipitation…

Q: 20. A 225 mL sample of a 10.0 M aqueous stock solution is diluted to 4.00 L upon addition of water.…

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Q: The mass of iron(II) carbonate that is dissolved in 125 mL of a saturated solution is __________…

A: Given,volume of saturated solution = 125 mLFrom the reference:Ksp of FeCO3 = 3.13 x 10-11

Q: What do you call the substance added to the sample to convert it to a sparingly soluble solid?

A: sparingly soluble substances are the one which have very low solubility product and they are very…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.