When NaCl is put into water, the attraction between water molecules and the Na* ions and Ch ions overcomes the attraction between the Na* ions and Cl ions. O True O False

Q: Calculate the mass/volume percent of a NaCl solution in which 171 g of NaCl is dissolved in enough…

A: Given data,Mass of NaCl=171gVolume of solution=2.34L Mass/ volume percent is given by the following…

Q: Describe ionic liquids and their solutions with examples?

A: An ionic liquid (IL) is a salt in the liquid state. These salts has melting point below some…

Q: Which of the following is true about enthalpy changes when a salt dissolves in water? if the…

A: Enthalpy of the reaction changes when heat is absorbed or released from the reaction.

Q: What mass of NaOH is required to prepare 250.0 g of solution that is 8.00% w/w NaOH?

A: Given data is as follows: The mass of the solution = 250.0 g The mass percent (w/w) of the solution…

Q: O How many grams of sodium chloride required to prepare loo ppm Sodium in 250 ml of solution ? Ans.8…

A: Solution In order to work out what proportion common salt should be dissolved in one L of water,…

Q: What mass of C12H22011 (sucrose) is needed to prepare 255 mL of a 0.570 M solution of sucrose in…

A: The number of moles of solute present in 1L of the solution is called the molarity of the solution.…

Q: Is water available in ethanol?

A: Ethanol is an organic chemical compound. It is a primary alcohol. Its formula is CH3−CH2−OH. It…

Q: Which of the following solute(s) would form an electrolytic solution in water? Explain your…

A: Those solutions which have ions and conduct electricity is known as electrolytes. Electricity is…

Q: 1. What is the name of the basic unit (what is repeated over and over)? 2. Which of A or B is the…

A: Since your question contains multiple subparts. So, we will only solve the first three, to get the…

Q: Agree or disagree. "When ionic substances dissolve in water, ionic bonds are disrupted." What made…

A: Given: When ionic substances dissolve in water, ionic bonds are disrupted.

Q: Choose the most suitable definition for "enthalpy of solution". Select one: O a. The quantity of…

A: The enthalpy of solution, enthalpy of dissolution, or heat of solution is the enthalpy change…

Q: How many moles of NaOH are present in 31.5 mL of 0.240 M NaOH?

A:

Q: How many grams of NaOH are needed to prepare (2.0 L) of (1.5 M) NaOH solution? Na=23 O=16 H=1

A: Given datas ; Volume of Soln (V)  = 2.0 L Concentration or Molarity of the soln   (M) = 1.5 M So,…

Q: 2. The process of formation of a liquid solution can be better understood by breaking the process…

A: Given: Process of formation of a liquid solution that can be better understood by breaking the…

Q: Which solution is placed inside the buret? NaOH O vinegar O water OKHP

A: Which solution is placed inside the buret?

Q: A solution is prepared by dissolving 98.6 g of NaI in enough water to form 885 mL of solution.…

A: Given : Mass of solute i.e NaI = 98.6 g Density of solution = 1.06 g/mL And volume of solution = 885…

Q: How many moles of NaOH are present in 27.0 mL of 0.110 M NaOH?

A: Molarity is one of the concentration term which is used to define the concentration of a solute in a…

Q: Which of the following would be soluble in water? O LiBr, Nal, HBr O CH;G KOH, CH O Sugar, HNO,…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Choose the most suitable definition for "enthalpy of solution". Select one: O a. The quantity of…

A: Enthalpy of solution also known as heat of solution.

Q: O water

A: pH is scale measurement for acidity and bascity of molecules. Its value ranges from 1 to 14. 7 is…

Q: How many moles of NaOH are present in 15.0 mL of 0.120 M NaOH?

A: We have 15 ml solution, 0.120 M as concentration ,we have to calculate the moles of NaOH present.

Q: Your know-it-all classmate just explained to the class that NaCl is a gas because the line on the…

A: The solubility of a solute in a particular solvent is the concentration of its saturated solution at…

Q: What is the percent of water in Na2SO4 10H₂O?

A: Solution  The %H2O in Na2SO4.10H2O is 55.9%

Q: The heat of solution (A H is the algebraic sum of the heat of mixing (A H the heat of solvent (A H…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: Calculate the mass percent concentration for each of 5.57g SrCl2 in 225 g of water

A: Given, The mass of SrCl2 (solute) = 5.57 g. The mass of water (solvent) = 225 g.

Q: iii) H* + OH- → H2O AH° =- 57.32 kJ is an example of ....... a) heat of formation b) heat of…

A: Enthalpy (heat) of a reaction is the energy required or released in a chemical reaction.  Therefore,…

Q: Given equimolar amounts of these solids in separate beakers of distilled water, which one would…

A:

Q: How many moles of NaOH are present in 20.5 mL of 0.210 M NAOH? moles:

A: Molarity of a solution is given by,       molarity = moles of solutevolume of solution (in L)moles…

Q: Complete the Table based on the picture (Heat Neutralization between a strong acid and a strong…

A: Given data,Volume of HCl=100mLVolume of NaOH=100mLTotal volume of mixture=200mLDensity of…

Q: How many moles of sodium would need to react with 10.67g of water to produce NaOH and hydrogen gas?…

A: Given the unbalanced equation: Na (s) + H2O (l) → NaOH (aq) + H2 (g) We have to find the number of…

Q: Soap can differentiate between hard water and soft water. Which of the following will form a solid…

A: When there are no dissolved salts of metals like calcium, magnesium or iron in water then it is…

Q: 4. The oxygen atom of water is covalently bonded with the two hydrogen atoms in a water molecule. 5.…

A: Given,

Q: how many ml of water required to make 525 ml.of 0.15 naoh from 2.5 naoh

A: Actual question is how many mL water required to make of 0.15M NaOH from 2.5M NaOH for dilution of…

Q: SrCl2•6H2O Percent water in the hydrated salt.

A: The formula of the hydrated salt is = SrCl2•6H2O The percent of water in the salt is =?

Q: Concentrated sulfuric acid is 18.0 M and has a density of 1.84 g/mL. Calculate the percent mass of…

A:

Q: A hard water sample contains 0.0085% Ca by mass (in the form of Ca2 + ions). How much water (in…

A: Percentage by mass refers to the mass of substance present in 100 g of the solution (water) Thus,…

Q: What is the lattice constant ? if the lattice has 400 lines per mm?

A: Given, Number of lines (N) per mm = 400 lines/mm = 400,000 lines/m, Then grating space (d), d…

Q: What is the minimum ratio of hydrogen bonding atoms to carbon that must be present in a given…

A: Hydrogen bonding is formed by only three atoms such as F, N and O.

Q: find % water and X

A: In this question we have to explain how to use experimental data to find percentage water and X.

Q: 500g of Al2s3 is dissolved in H2o to make 15.0 L of solution. What is its normality? (MW:…

A: Normality = (wt.)/{(equivalent wt.)×Volume(L)} ---(1) We know that:  Equivalent wt = (moleculer…

Q: How many moles of NaOH are present in 15.5 mL of 0.270 M NAOH? moles:

A: Record the given data, The given volume 15.5 ml = 0.0155 L Molarity of the given solution is 0.270 M

Q: Compound Lattice Energy (kJ/mol) NaF 930 2978 The energy required to dissociate an ionic solid into…

A:

Q: Highest freezing point Na, PO4 Na, SO, 4 NH,CI Lowest freezing point

A:

Q: 2K + 2H2O → 2KOH + H2 19.55 g of solid K is added to 500. mL of water, initially at 20.0 °C. The…

A:

Q: How many moles of NaOH are present in 19.5 mL of 0.120 M NaOH?   Moles=

A: The question is about to calculate the Number of Moles of NaOH -

Q: what is it about the atoms of lithium, sodium, and potassium that cause them to behave in such a way…

A: •Lithium, sodium and potassium are Group-1 elements and these are also known as alkali metal. •They…

Q: A 6.42% (w/w) Fe(NO3)3 (241.81 g/mol) solution has a density of 1.059 g/mL. Calculate the molar…

A: Two numerical problems based on the concept of solutions, which are to be accomplished.