. Write short note on- hardness of water.

Q: Match the solution or description to the appropriate category.

A: Electrolytes when dissolved in water dissociate into electrically charged particles called ions. The…

Q: Given the following consumer products, compute the mass or volume of the major solute present. Show…

A: (a) 80 proof alcohol has ethyl alcohol as major solute at 40% presence.

Q: May I know why oil is considered heterogenous and suspension?

A: Answer:  Oil is considered as various physical properties.

Q: Mention the main use of lithium soaps.

A: Fatty acid salts of metals are commonly known as soaps.

Q: Ki

A:

Q: 21 Available is tobramycin 40 mg/ml. How much tobramycin (in milliters) is needed for the following…

A: The given problem can be determined by suing the molarity equation as; M1V1=M2V2 Where, M1 is the…

Q: a. As the temperature of a solution increases, what happens to it b Why does temperotura not offoot…

A: Dear student I have given answer to your question in the image format.

Q: Use a Venn diagram to compare mechanical mixtures and solutions.

A: Venn diagram to compare mechanical mixtures and solutions is shown in the step below.

Q: D3 remain in solution at 20 C? rams to three significant figures. swers Request Answer gain; 4…

A: According to the question, we need to calculate mass of NaNO3 at Certain temperature.  The…

Q: Write short note on -hardness of water

A: Hard H2O contains an appreciable quantity of dissolved minerals (like Ca and Mg). Soft H2O is…

Q: boiling point. g of each

A:

Q: Data Table 1 Enter the calculated molarity and measured conductivity values in the table. Data Table…

A: Note: Conductivity values comes from the readings of Conductometer. Molarity can be calculated as:…

Q: Please hand written solution

A: Porphyrin is the large mole which consists four pyrrole unit . Pyrrole is heterocyclic five membered…

Q: What is the process by which sediment comes to rest

A:

Q: Briefly describe (d) standardization of a solution.

A: ANSWER IS :

Q: ty of solvent?

A: The elevation in boiling point is directly proportional to Van’t-Hoff factor and molality of the…

Q: In which liquid will sugar dissolve best: Water, cooking oil, or alcohol? Explain why??

A: Given question is : In which liquid will sugar dissolve best = ?  Options are : a). Water  b).…

Q: ume of acid (V) = ml. Volume of base () = ml.

A: We have to find the volume of acid and volume of base, to make given buffer  Given pH = 9.24  pKa =…

Q: What is the % of Mg in Magnesium Nitride?

A: The compound given is magnesium nitride i.e Mg3N2. Assuming 1 mole of Mg3N2.

Q: Rank the species from most to least soluble in water.

A:

Q: What controls the temperature of a reflux reaction? How could you change the temperature of a reflux…

A: Certain organic reactions are too slow at room temperature.To initiate such reactions and to…

Q: What will happen if we put a small pinch of salt into jar containing potato strips

A: We put a small pinch of salt into a jar containing potato strips has to be explained below,

Q: While filtering the crystals, the student used hot solvent to rinse the filter paper and the sample.…

A: The question is based on the variation of solubility any chemical entities with application of heat…

Q: how to make a stock solution of 10% ethanol and 40% water? do the necessary volume to concentration…

A: To make a stock solution of 10% ethanol and 40% water.

Q: Why do true solutions not show Tyndall effect?

A: Tyndall effect is the dispersion of particles by light and its often used to differentiate the true…

Q: Can you please solve this sub problems and show the step by step to the solution please and thanks

A:

Q: of sulfuric acid in a 5.00 % solution 0g 0g

A: 5% by mass means,  100 g solution contains 5.0 g H2SO4 If mass of sulfuric acid = 25.0 g  If 5.0 g…

Q: Using solution in saponification process will increase the aggregation for the formed soap…

A: Dear Subscriber! You have posted multiple questions. As per our policy we have answered only 1st…

Q: When heating a solution to boiling on a hot plate, start by ____________ a. preheating the…

A: The hot plates are the devices, which are used in laboratories either to directly heat in a…

Q: In two separate test tubes, put 5 mL each of coconut oil/cooking oil. To one test tube, add 5 mL of…

A: In this activity,  5 milliliter coconut oil was taken in one test tube and 5 milliliter coconut oil…

Q: Standard solution is used to determine theconcentrations of ------ substances.( other, many, some)…

A: A Standard solution is a solution whose  concentration is known accurately . It is prepared using a…

Q: A test tube is prepare using a concentrated stock solution with a concentration of 4.9 mg/mL. The…

A: Given: Concentration of stock solution=4.9 mg/mL Volume of the stock solution=146μL Volume of…

Q: chem question 2 Describe the cleansing action of soap and detergent.

A: Since the amount of reactants are not mentioned in ques 1 so I am answering ques 2 Soap and…

Q: Part b full solution please

A: (b) Given that : Mass of potassium hydrogen carbonate = 2.00 g Volume of HCl = 30.0 cm3 = 0.03 L…

Q: Using Kay's method, what is the number of moles of this mixture in the tank?

A: As per Kay's  method ; the no. of moles of a mixture in tank is 2.27 Kmoles ( option A is correct )

Q: High consumption of which of the electrolytes can lead to the hypertension? Select one: a. Sodium b.…

A: We have given that Hypertension is also known as high blood pressure. the most common causes of…

Q: hydration.

A:

Q: If an mL of phenolphthalein is utilized rather than drops, what would be the implication/s?

A:

Q: What happens when soda bottles is open?

A: Carbonated drinks are defined as drinks that contain dissolved carbon dioxide in it. It's a soft…

Q: WHATS THE NEW WATER LEVEL IN MILLILITER?

A: Mass of gold ( m ) = 85.0 g Density of gold ( d ) = 19.3 g/mL Density ( d ) = mass ( m ) / volume (…

Q: In chem lab when creating aspirin, how does a melting point range for pure aspirin compound differ…

A: In chemical lab, we can prepared aspirin then it will compared with reference aspirin (pure aspirin…

Q: Materials Needed: salt spoon casserole/cooking pot water gla ss Procedure: 1. Put a tablespoon of…

A: The chemical formula of salt is NaCl and it is an ionic compound.

Q: Answer the following and show the complete solution and formula used:

A: The answer is 2400 litres

Q: What is the dilution factor for Sample 1 if 20 µL of extract is added to 980 µL distilled water?…

A: The dilution factor of the given extract solution is as follows.

Q: equivalent weight of oxalic acid dihydrate.

A: Molecular weight(M) of oxalic acid dihydrate(H2C2O4.2H2O) = 126 g Equipment weight(E)  =    =…

Q: Calculate molar mass for delta Tf, molality of t butanol and experimental molar mass of solute. (Kf…

A: The depression or lowering in freezing point is expressed as:

Q: Outline a brief procedure for making a diluted solution from a concentrated stock solution. Be…

A: A stock or standard solution is a solution in which its concentration is known accurately. We can…

Q: Chemistry HW need help, how to do these caculation and answer these questions?

A: Hi! Since there are multiple questions posted. We are answering first question. If you need further…

Q: Match each definition or prompt with the correct term on the right. The term used for a [Choose ] ✪…

A: A solution is formed by the mixing of solute in the solvent. If it is completely dissolved in the…