What is the ideal level of water hardness for sea water?

Q: What pressure of gas is necessary to obtain a concentration of 1.0x10-3M H2(g)?

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Q: How many grams of pure sodium hydroxide would be required to make 2L of 1.5M sodium hydroxide…

A: Given 2L of 1.5M sodium hydroxide solution To determine grams of pure sodium hydroxide would be…

Q: Prepare 10mlof a 20mg ml solution if copper sulfate

A: The objective of the question is to calculate the mass of copper sulfate needed.

Q: The normal freezing point of a certain liquid X is -0.70 °C, but when 19. g of sodium chloride…

A: Given ,Normal freezing point of certain liquid, X Mass of NaCI = 19. gMass of X = 850. gObjective…

Q: A small amount of methanol (CH,OH) is dissolved in a large amount of water. Imagine separating this…

A: Enthalpy is the heat absorbed or released by the system when work is done. If energy is added to the…

Q: is HgSO4 Soluable in water?

A: No, HgSO4 that is mercuric sulphate is NOT SOLUBLE in water. It is because when it is added in…

Q: How many grams of potassium hydrogen phthalate (KHP) will be required to titrate 55 mL of a 0.11 M…

A: A numerical problem based on volumetric analysis, which is to be accomplished.

Q: Why do we need carbon dioxidefree water in preparing the volumetric solution?

A: Volumetric test- It is the  process of determining the  quantity of a sample by adding fixed volumes…

Q: What is the freezing point of 0.111 m urea in water

A: Freezing point of the solution can be determined by using the formula given below as:  ∆T=imKf…

Q: Give the name of the molecular compound and the name of the aqueous solution for each of the binary…

A: Write the molecular name and acid name of the given  molecular formula---

Q: The freezing-point depression of a 0.0425 m trichloroacetic acid solution is 0.147 K. Calculate the…

A: We will use colligative property to calculate vant hoff factor then calculate degree of…

Q: Calculate the amount of conc. HCl

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Q: 11) How much 0.05 M HCl solution can be made by diluting 250 mL of 10 M HCI?

A: Dilution decreases the concentration of the solution that is same moles are distributed over the…

Q: Convert 0.455 mol of ammonium (NH+4) ions to equivalents.

A: We know that, Number of gram equivalent = Number of moles x n-factor. n-factor =1 for NH4+  because…

Q: When the salt concentration outside of a cell is very high, will water move into the cell or out of…

A: When the salt concentration outside of a cell is very high , then water will move from out of the…

Q: A 10 ml solution of 3 M HC1 is diluted to 50mL. what is the concentration of the 50mL solution?

A: Given information: Concentration of solution 1 = 3 M Volume of solution 1 =10 ml Volume of solution…

Q: What are the pharmaceutical uses of paratonic solutions?

A: Paratonic solutions are the the solutions which don't have the same osmotic pressure i.e the…

Q: The molarity and normality of a diprotic acid is the same. True False

A: Normality = n × molarity  n= basicity of acid

Q: The normal freezing point of a certain liquid X is 0.10 °C, but when 18. g of potassium bromide…

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Q: A 1.37 M solution of an acid with the formula C6H₂O7 has a density of 1.10 g/ml. Calculate the mass…

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Q: 1 18. A solution that is 33.6 % by mass of phenol (C&HSOH) in water is prepared. What is the mole…

A: Answer 19 :- 1.35 m is 1.35 mole of solute in 1 kg of water. (1000 g H2O) / (18.01532 g H2O/mol) =…

Q: What is the freezing point of a solution prepared by dissolving 5.908 g of ethanol, CH3CH2OH…

A: The freezing point can be calculated by the colligative propert i.e. Depression in freezing point.…

Q: Give a definition for a neutral aqueous solution that is valid at any temperature, not just 25 °C.

A: A definition for a neutral aqueous solution that is valid at any temperature, not just 25°C, it is…

Q: A 1.0 m solution of HCl in benzene has a freezing point of 0.4 °C. Is HCl an electrolyte in benzene?…

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Q: Each row of the table below describes an aqueous solution at about 25°C . Complete the table. That…

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Q: Calculate the moles of HC2H3O2 in 20 mL of a 0.5M solution. Calculate the grams of HC2H3O2 in 20…

A: 1. Given: Volume of HC2H3O2 = 20 mL concentration of HC2H3O2 = 0.5 M   Calculation for number of…

Q: Each row of the table below describes an aqueous solution at about 25°C . Complete the table. That…

A: The formula used for [H3O+] and pH is :  pH = - log [H3O+]  [H3O+] = 10- pH  1) For solution A;…