The concentration of arsenic in an insecticide can be determined gravimetrically by precipitating it as MgNH4AsO4. The precipitate is ignited and weighed as Mg2As2O7. Determine the %w/w As2O3 in a 1.627-g sample of insecticide that yields 106.5 mg of Mg2As2O7.

Q: A reaction mixture contains 0.220 M methane gas (CH4), 0.670 M carbon dioxide gas, 1.30 M water…

A: The reaction quotient (Qc) for the given reaction is expressed as: Qc=[CH4][CO2][H2O]2 ;…

Q: PCl3(g) + 3 NaF(s) PF3(g) + 3 NaCl(s) K = 9.78 x 1031 If 12.56 g of NaF(s) and 17.89 g of NaCl(s)…

A: The given equilibrium reaction is: PCl3(g) + 3NaF(s)  -----> PF3(g) + 3NaCl(s) ; K = 9.78*1031…

Q: A dropperful of 0.1 M Pb(NO3)2 was added to a dropperful of 0.1 M KI in a test tube. The mixture…

A: Given: A drop of 0.1 M Pb(NO3)2 was added to a drop of 0.1 M KI in a test tube. The mixture turned…

Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite, which…

A: we have to calculate the original concentration of copper(II)sulfate

Q: Chlor-alkali plants electrolyze NaCl to produce the commodity chemicals caustic soda and chlorine…

A:

Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite,…

A: Given,  metal copper is produced is by dissolving the mineral azurite, which contains copper(II)…

Q: 5.00 g of solid Al(NO3)3 was added to enough water to make a solution with a total volume of 100.0…

A: Given that : The mass of solid Al(NO3)3 = 5.00 g The volume of the solution = 100.0 mL

Q: based on your results complete and balance the following reactions. Make sure you correctly identify…

A: The balanced and complete chemical equations of the above reactions are given below;

Q: Which of the salts below would cause the temperature to increase the most, when 5.00 grams of the…

A: Given-enthalpy of dissolution of MgCl2 = -160 KJ/mol Using the formula we have No. Of mole of Mgcl2…

Q: Suppose a 250. mL flask is filled with 1.5 mol of NO₂ and 1.4 mol of NO. This reaction becomes…

A:

Q: Write the balanced chemical equation for this reaction below. (without any Ag2O). Each reactant and…

A: • The given reaction is,         AgNO3 + Na2CO3 →    • We need to determine the product of the given…

Q: 9. If 6.2 mL of 0.0160 M KOH solution must be added to 5.0 mL of 0.240 M CaCl₂ solution to just form…

A: Solubility product is the multiplication of molar solubility of the constituent ions of the…

Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite, which…

A: Volume of copper sulfate solution = 350 mLMass of Cu(s) = 139 mg = 139 * 10-3 gChemical reaction…

Q: To standardize a solution of NaOH, .1 0.5531 g of KHP (eq wt = 204.23) was dissolved in 50 mL of…

A: The number of gram equivalents is defined as the ratio of the given mass of a substance to its…

Q: 6. Methanol is manufactured by reacting carbon monoxide with hydrogen gas. CO(g) + 2H₂ (g) → CH3OH…

A:

Q: 31.  10.0 mL. of concentrated of H3PO4(aq) is diluted to the final volume of 250.0 mL.  Then 15.0…

A: Given that : The initial volume of H3PO4 = 10.0 mL The final volume of H3PO4 = 250.0 mL Molarity of…

Q: The solubility product of solid copper(II) hydroxide is 2.2 x 10−20 g/L in water at 298 K. What is…

A: Given :- Ksp of Cu(OH)2 =  2.2 x 10−20 g/L  To calculate :- Its solubility (g/L)

Q: Classify each chemical reaction: 2K (s) + Cl₂(g) → 2K Cl (s) reaction K Br(aq) + AgNO3(aq) →…

A: Answer:- This question is answered by using the simple concept of different types of chemical…

Q: 28. A neutralization reaction occurs when 120.00 mL of 0.500 mol/L LiOH and 160.00 mL of 0.375 mol/L…

A: Given that,volume of LiOH = 120.0 mLConcentration of LiOH = 0.500 mol/LVolume of HNO3 = 160.0…

Q: 10) How many miligrams of BaSO4 are dissolved in a 225 mL sample of BaSO4(aq)? (Hint: calculate the…

A: BaSO4 (s)  ------>  Ba2+ (aq)  +  SO42- (aq) Ksp = [Ba2+][SO42-]

Q: 31.  10.0 mL. of concentrated of H3PO4(aq) is diluted to the final volume of 250.0 mL.  Then 15.0…

A:

Q: Chlor-alkali plants electrolyze NaCl to produce the commodity chemicals caustic soda and chlorine…

A: The maximum concentration of mercury in the effluent is = 2.50×10-9 mol/L The mass of the mercury…

Q: Write the equation for the dissolving of cobalt(II) carbonate in water. Be sure to specify the state…

A: we have to write the equation for dissolving cobalt(II)carbonate in water

Q: Assuming that 8.575 kg of NaCl (Hint: NaCl is a strong electrolyte) is distributed across a roadway,…

A: Freezing point determination using colligative properties.

Q: Average the two percentages and calculate the percentage difference. given : Concentration of…

A: Average percentage - It is the average of the two percentages.…

Q: 2. Suppose a titration needed 27.15 mL of 0.2497M HCI solution to completely react 25.00mL Ba(OH)2…

A: The number of moles of a substance is determined as the mass of a substance upon its molar mass. The…

Q: What is the concentration, in % w/v, of the solution created when 16.8 g of solid Al(NO3)3 was added…

A: Weight / volume percent (% w/v) :-  The weight of solute in grams present in 100 mL of solution is…

Q: The conductivity of the dilute NaCl solution should be substantially higher than that of DI water…

A: The dissociation of NaCl into its ions are given by,From this balanced equation, it is well clear…

Q: e table below,

A:

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: Here we are required to find the concentration of iron chloride present in the ground water sample

Q: The density of acetic acid is 1.05 g/ml. * 10 ml of commercial vinegar was taken during titration…

A: Given: The density of acetic acid = 1.05 g/ml The volume of commercial vinegar taken = 10 ml The…

Q: Chlor-alkali plants electrolyze Nacl to produce the commodity chemicals caustic soda and chlorine…

A: The effluent can contain upto 2.5×10-9 mol/L Hg Weight of Mercury= 1.42g

Q: Chlor-alkali plants electrolyze NaCl to produce the commodity chemicals caustic soda and chlorine…

A:

Q: Write a balanced equation for each reaction including the state symbols for all reactants and…

A: The solution is given below -

Q: Q3. Compare the molar solubility of Ca(OH)2 at the two different temperatures. Is Ca(OH)2 is more…

A: Molar solubility:Molar solubility is the number of moles of a substance that dissolve to produce one…

Q: 10) How many miligrams of BaSO4 are dissolved in a 225 mL sample of BasO(aq)? (Hint: calculate the…

A:

Q: A) A student completely dissolves 5.16 mol of Ca(OH)2 in water. i) Which equation is the…

A: Dissiciation equation for CaOH2 : CaOH2s →Ca+2aq + 2 OH-aq 5.16 moles       5.16 moles of…

Q: Suppose a 250. mL flask is filled with 0.80 mol of SO, and 1.5 mol of SO3. This reaction becomes…

A: The balanced equation is   2 SO2 (g) + O2 (g) <---------> 2 SO3 (g)Volume = 250 mL = 0.250 L…

Q: A chemical reaction occurred when 500 mL of 7.5 x 104 M Cal2 and 100 mL of 1.7 x 105 M Pb(NO3)2…

A: The solubility product of salt is a constant at a given temperature irrespective of the source from…

Q: Someone is attempting to measure the H3PO4(aq) content of an unknown solution by both titration with…

A: The concentration of H3PO4 is needed to be determined given that it require 46.84 L of stock NaOH…

Q: How many miligrams of BaSO4 are dissolved in a 225 mL sample of BaSO4(aq)? (Hint: calculate the…

A:

Q: The solubility product constant for a certain metal sulfide, M2S is Ksp = 2.9 × 10−23. Its molar…

A:

Q: NaOH Standardization

A: A provide a detailed and step by step calculation for the data obtained in the above given table.

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.