solution is prepared at 23°C by mixing 15g g of Ca(OH)2 with 2.1L of water. The density of water at this temperature is 1g/ml. What is the m of Ca(OH)2? MW= Ca: 40, O: 16

Q: Every year, oral rehydration therapy (ORT) –the feeding of an electrolyte solution -saves the lives…

A: NaCl → Na+   +  Cl-Molar mass of NaCl = 58.44 g/moleMoles NaCl = Mass of NaClMolar Mass of NaCl =…

Q: 13.6 g of solid ammonium nitrate (NH4NO3, molar mass 80.052 g/mol) is dissolved in 120 mL of water.…

A: Heat of solution is Calculated using formula:   ∆Hsolution  = - q / n  Where , q = heat of solution…

Q: The solubility product (Ksp) for Pb(OH)2 (s) is 2.5 x 10-16. What would be the quantity of…

A: Ksp = [Pb2+][OH-]

Q: What mass of NaBrO3 would be required to start precipitating out Ba(BrO3)2 from 250. mL of a 0.195…

A:

Q: A chemistry student adds a quantity of an unknown solid compound X to 550. mL of distilled water at…

A: When a solute is added to water, solution is formed. Some time all of the solute can be…

Q: 13.6 g of solid ammonium nitrate (NH4NO3, molar mass 80.052 g/mol) is dissolved in 120 mL of water.…

A:

Q: Ammonium chloride (NH4Cl) is very soluble in water, 383 g/L at room temperature, and has a standard…

A: Since NH4Cl is made from weak base NH4OH and strong acid HCl. Hence the salt NH4Cl is acidic in…

Q: The freezing point of an aqueous solution containing 35 g of an nonelectrolyte in 150 mL water is…

A:

Q: A 100. mL aqueous solution prepared by dissolving 25.0 g of a non-electrolyte solute had a freezing…

A: Given :  Kf = 1.86 °C/m  Freezing point of solution (Tf) = -1.26 °C  Mass of solute = 25.0 gm…

Q: Water “softeners” remove metal ions such as Ca²⁺ and Fe₃³⁺ by replacing them with enough Na⁺ ions…

A: First determine the moles of Ca2+. One mole of Ca2+ ion has 2 mol charge present on it. The…

Q: A salt has the form M2X3 where M is a metal cation and X is a nonmetal anion. If AGxn is 50.40…

A:

Q: What will be the Molar concentration of the 369.86  HCl solution prepared from 3 mL of concentrated…

A: First we will calculate molar concentration of concentrated HCl , then using if find concentration…

Q: You have a flask weighing 121.214 g. To this flask, you added 25.00 mL KCl(aq) solution. You weigh…

A: molality is a method of expressing concentration of the solution. it is defined as number of moles…

Q: A chemist prepared 250 mL 1.35 M NaCl solution for an experiment. How much NaCl (in grams) should be…

A:

Q: A chemistry student adds a quantity of an unknown solid compound X to 1.00 L of distilled water at…

A: Answer:Solubility of a solution is equal to the ratio of mass of solute and volume of solution, so,

Q: What is the molality of a 0.726 M Pb(NO3)3 (MW=331.2 g/mol) solution if it has a density of 1.202…

A: Given:- Pb(NO3)2 => 0.726 M MW = 331.2 g/mol Density of solution= 1.202 g/ml

Q: was made by dissolving 479.32 g or aluminum AIC13) in enough water to make 500.0 solution. The…

A:

Q: A solution is 0.0420 m KI. What is the molarity of the solution if the density is 1.10 g/mL? MW KI =…

A:

Q: 6. What mass of Ba(IO3) can be dissolved in 500.0 mL water at 25°C? Kap=1.57 x 10.⁹

A: Answer:- Firstly a dissolution equation is written for the given salt. Then using the value and…

Q: Every year, oral rehydration therapy (ORT) –the feeding of an electrolyte solution –saves the lives…

A: Introduction : We have to apply the concept of depression in freezing point.

Q: NH4NO3(s) -->  NH4+ (aq) + NO3- (aq) Determine DHsol (in kJ/mol NH4NO3) when 1.25 g of NH4NO3 is…

A: Mass of solution = 25 mL Density of solution = 1.02 g/mL Density =massVolume Mass = Density…

Q: molarity and normality

A:

Q: The solubility of the hypothetical salt A3B2 is 6.2 × 10¬³ mol/L at a certain temperature. What is…

A: Solubility is a phenomenon where the solute get dissolved in a solvent to form a solution. The…

Q: Calculate the mass (in grams) of potassium bromide that will be formed from 26.18 mL of a 5.26 M…

A: Given reaction - AlBr3 + K2SO4 → KBr + Al2SO43 Given data, Volume of K2SO4 = 26.18 mL Molarity of…

Q: the A 13.1 g sample of a new chemical is dissolved in 92.4 g of H₂O. The freezing point of resulting…

A:

Q: Solutions of hydrogen in palladium may be formed by exposing Pd metal to H₂ gas. The concentration…

A: Given - mass of hydrogen gas = 0.85g              Mass of palladium = 197 g              Density of…

Q: What is the molarity of a solution made by dissolving 150.0 grams of K O H (MW = 56.12 g/mol) into…

A: Mass of KOH=150.0gMW of KOH=56.12g/molvolume of the solution=1.00Lmolarity of a solution=?

Q: The average concentration of chloride ion in seawater is 19.353g Cl-/kg. The world health…

A: Given information, The average concentration of chloride ion in seawater is 19.353g Cl-/kg.  The WHO…

Q: A 25.00-mL sample of HCl(aq) was added to a 0.1000-g sample of CaCO3 (100.09 g/mol). All the CaCO3…

A:

Q: What volume of water, which has a density of 1.00 g/mL, must be added to 25.0 g of CH 3CH 2OH to…

A: The volume of water has to be determined, Given, The mass of water is 25.0 g. The molarity of the…

Q: mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20 mL…

A: We add excess  potassium iodide to  hypochlorite sample. oxidation reduction reaction takes place…

Q: 1-What volume of 0.57 M NaCl solution contains 169.5 grams of NaCl?   2-Calculate the molality of…

A: I solved only three question. Remaining brepost

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".