To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1900M  sodium hydroxide  NaOH  solution to a  22.00g  sample of the fluid and collects the solid nickel(II) hydroxide  NiOH2  product. When no more  NiOH2  is produced, he filters, washes and weighs it, and finds that  295.mg  has been produced.   The balanced chemical equation for the reaction is: Ni2+aq + 2NaOHaq + NiOH2s -> 2Na+aq   Calculate the mass percent of Ni in the sample.

Q: f 100.0 mL of 50.0 M SrCl₂(aq) is added to 400.0 mL of distilled water, what is the concentration of…

A: Volume of stock solution,  V1 = 100.0 mL Concentration of stock solution,  M1= 50.0 M To determine:…

Q: When aqueous solutions of copper(II) sulfate and ammonium carbonate are combined, solid copper(II)…

A:

Q: total acidity in water samples can be determined by neutralization with standard sodium hydroxide…

A:

Q: 3. Potassium sorbate, KC6H7O2 (molar mass=150. g/mol), is commonly added to diet soft drinks as a…

A: The whole ionic equation is : K+ + C6H7O2- + H+ + Cl- → HC6H7O2 + Cl-+ K+ let eliminates the common…

Q: In the reaction between KCl(aq) and AgNO3(aq), a precipitate of AgCl(s) will form. What mass (in…

A: Molarity of AgNO3 solution = 0.220 Volume of AgNO3 solution = 27.2*10-3 Molar mass of KCl= 74.55…

Q: The Burke Museum at the UW is analyzing a dinosaur bone sample for the amount of calcium it…

A: The solid

Q: The calcium content in a 0.4367-g sample of phosphate rock was determined by first dissolving the…

A: Here we have to determine mass percentage of calcium present in 0.4367 gram phosphate rock  if all…

Q: To measure the amount of chlorine in a well-boring fluid, an analytical chemist adds 0.260M silver…

A: Given,  Concentration of silver nitrate is = 0.260 M. Mass of fluid is = 21 g  Final mass of product…

Q: . What mass of precipitate (in g) is formed when 55.2 mL of 0.500 M AlBr₃ reacts with excess AgNO₃…

A: As per our guidelines we can only solve first question. Please resubmit other questions as next…

Q: 100.0 mL of an aqueous solution containing 0.250 M KOH(aq) is mixed with 100.0 mL of an aqueous…

A: First of all, we need to write down the balanced chemical.  The molar mass of Fe(OH)3 = 106.87g/mol

Q: A sample of 5.26 g of solid calcium hydroxide is added to 32.5 mL of 0.420 M aqueous hydrochloric…

A: Given: Mass of solid Ca(OH)2 taken = 5.26 g. Concentration of HCl = 0.420 M And volume of solution =…

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

A: Number of moles of AgCl = given mass/ molecular mass = 3.0 mg/ (143.32 g/mol) = 3.0 x 10-3 g/…

Q: 170.00 mL of 0.500 M BaCl2(aq) is mixed with 60.000 mL of 0.500 M Li3PO4(aq). Assuming 100% yield,…

A: The overall reaction will be :   3 BaCl2(aq) + 2 Li3PO4(aq) = Ba3(PO4)2(s) + 6 LiCl(aq)…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.5 mL sample taken…

A: The balanced chemical equation between H2SO4 and NaOH states that one mole of H2SO4 reacts with two…

Q: In a neutralization reaction, 50.00 mL of 0.8500 M phosphoric acid reacts with 2.500 g of magnesium…

A: The answers to the first three questions can be given as - Given Data -

Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)2(aq), until no further…

A:

Q: A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH(aq). If the acid reacts with 28.10…

A: Acid and base reacts with each other forms water and salt. This reaction is called neutralization…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.5 mL sample taken…

A: Answer:Molar concentration of a solute in a solution is always equal to the ratio of number of moles…

Q: A 316.1 g sample of water reacts with calcium to produce calcium hydroxide and hydrogen gas. If the…

A: Step 1: Step 2: Step 3: Step 4:

Q: To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1800M…

A: Precipitation reaction: It is a reaction in which a cation and anion combine to form a insoluble…

Q: In a reaction between copper metal and aqueous iron (III) chloride, Fe3+(aq) is reduced to Fe2+(aq),…

A: First, we need to calculate the number of moles of FeCl3 in the solution. The molarity (M) of a…

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.700 M Zn(NO₃)₂ reacts with 23.0 mL of…

A: Number of moles of substance=Concentration of substance x Volume of substanceFor…

Q: Concentration of calcium in a sample may be determined by precipitation using the chromate ion,…

A:

Q: What mass of precipitate (in g) is formed when 45.5 mL of 0.300 M Na3PO4 reacts with 44.5 mL of…

A:

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.700 M Zn(NO₃)₂ reacts with 31.0 mL of…

A: ZnNO32+2 NaOH→ZnOH2 s+2 NaNO3 aqStength of ZnNO32=20.5x0.700 M1000=0.0143Stength of NaOH=310x0.700…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 4.30 mL sample. About…

A:

Q: How much solvent must be added to 25.0 mL of a 10.0 M HBr(aq) solution to form a 4.00 M HBr(aq)…

A: Let V Volumn is added

Q: In the following reaction, identify the limiting reactant (note the difference in units: Mg(OH)2…

A:

Q: A student was given a 3.708-g sample of a mixture of potassium nitrate and potassium bromide and was…

A: Given ; Mass of sample = 3.708 g Mass of AgBr precipitate formed = 2.957 g And the sample contains…

Q: A sample of 9.34 g of solid calcium hydroxide is added to 32.0 mL of 0.440 M aqueous hydrochloric…

A:

Q: Many common titrations involve the reaction of acid and base. If 24.74 mL of 0.503 M H2SO4solution…

A:

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.43 mL sample taken…

A:

Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)₂(aq), until no further…

A: Answer: In this question we have to convert the mass of PbCl2 into moles of Pb(NO3)2 to find out its…

Q: References A 3.41 g sample of iron ore is transformed to a solution of iron(II) sulfate, FeSO4. This…

A:

Q: To measure the amount of chlorine in a well-boring fluid, an analytical chemist adds 0.390M silver…

A: Given, Concentration of silver nitrate is 0.390M. Mass of sample of fluid is 45.0 g  Mass of silver…

Q: Suppose you took a 3.00 mL sample of HNO3 (aq) of an unknown concentration, and find that you have…

A: Given: Volume of HNO3 = 3.00 mL Volume of NaOH solution = 20.30 mL Molarity of NaOH solution = 0.106…

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".