A sample contains one or more of the ions: aluminum, calcium, copper(II), iron(III); upon addition of NH3, after centrifuging, it looks like the picture shown below. For each metal put in the correct letter: P = definitely present,  A = definitely absent, U = uncertain, can't tell if present or absent.  aluminum =  calcium =  copper =  iron =

Q: In the laboratory you are given the task of separating Ag* and Ba2* ions in aqueous solution. For…

A: Ag+ and Ba2+ ions  can be separated by adding a reagent if only one them form precipitate .…

Q: Are Ca, K, Na spectator ions?

A: In a chemical reaction; the substance which involves in conversion is said to be reactant whereas…

Q: What is the percent by mass (%m/m) concentration of sodium bromide (NaBr) in a solution prepared by…

A: % m/m is defined as  % m/m = mass of solute X 100 / mass of solution  mass of solution = mass of H2O…

Q: The steps to balancing a neutralization reaction when given a verbal description can be summarized…

A:

Q: The average human body contains 5.90 L L of blood with a Fe2+ F e 2 + concentration of 2.90×10−5 M M…

A: Given: Volume of blood = 5.90 L Molarity = Volume  of NaCN = 6.00 mL Concentration of NaCN = 20.0…

Q: If the density of ocean water at a depth of 1.00 x 104 m is 1.071 g/mL and if 21.0 g of water at…

A:

Q: In the laboratory you are given the task of separating Ca and Fe" ions in aqueous solution. For each…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: How would the following errors affect the empirical formula for the compound? That is, will these…

A: The empirical formula is the simplest ratio of different elements present in a compound. The ratio…

Q: Some brands of salami contain 0.090% sodium benzoate (NaC2H3O2) by mass as a preservative. If you…

A:

Q: Which is correct and which is incorrect from the following sentences? Proposition True False (a) The…

A: The solution is shown below

Q: What mass of Fe(NO3)3 do you need to prepare 150.00 mL of 0.550 M solution? Make sure all of your…

A: Mole is a standard unit for measuring large quantities of very small entities such as…

Q: Consider these compounds: A. CUCO3 В. Mns C. Ba3(PO4)2 D. Ca3(PO4)2 Complete the following…

A: Compounds' solubility can be compared using their Ksp (solubility product constant) values. The…

Q: In the reaction: 2NO2 + Cu" + 2H2O --> 2HNO3 + Cu + 2H" Which of the following statements is…

A: Reduction is the gain of electrons by a substance. Oxidation is the loss of electrons. One which go…

Q: Balance the following equation:   _____ Nm2Bf3 (aq) + _____ Cv (s) à ______ Cv2Bf (aq) + _____ Nm…

A: Since,  We know that,  Balanced equation means number of atom in reactant side is equal to number of…

Q: What volume of 0.220 M NaOH, in milliliters, contains 45.0 g of NaOH? Volume mL %3D

A:

Q: The extraction of aluminum metal from the aluminum hydroxide found in bauxite by the Hall-Héroult…

A: Given : Mass of Aluminium = 10 Kg 2Al(OH)3(s)→Al2O3(s)+3H2O(g)                       Step 1…

Q: The determination of the impurity of iodides in potassium bromide is carried out: A) Reaction with…

A: Qualitative analysis. Solved in step 2.

Q: A chemist prepares a solution of aluminum sulfite (Al₂(SO3)3) by measuring out 44. µmo! of aluminum…

A:

Q: The reaction of hypothetical elements: A, B, C, D, and E, follows the molecular equation:…

A: Spectator ions are the ions that do not participate in the chemical reaction. They remain in same…

Q: In the laboratory you are given the task of separating Ba and Zn" ions in aqueous solution. For each…

A: yeah its correct  i guess go ahead

Q: To study a marine organism, a biologist prepares a 1.00-kgsample to simulate the ion concentrations…

A: Hello. Since the question has multiple sub-parts, the first three sub-parts shall only be solved in…

Q: In the laboratory you are given the task of separating Ba2+ and Zn²+. ions in aqueous solution. For…

A: Ionic compounds termed as salts dissolve greely in water. In certain cases, the solubility of a salt…

Q: Precipitating gravimetry is a technique to determine the amount of an analyte based on mass of the…

A: Precipitating gravimetry is a technique to determine the amount of an analyte based on mass of the…

Q: xercise Over the years, the thermite reaction ha solid-fuel rocket motors What masses of iron(III)…

A: The balanced chemical equation for thermite reaction:

Q: In dilutions the amount of solute is held constant, but the volume is changed. Since…

A:

Q: Which of the following compounds is a electrolyte? O A. water O B. dihydrogen monoxide C. copper…

A: The electrolyte is a substance that produces ions in its aqueous solution and conducts electricity.…

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00 L of 2.00 M AGNO, (ag) with…

A: Given: Concentration of AgNO3 = 2M Concentration of NaCl = 4M Volume of AgNO3 = 1 L Volume of NaCl =…

Q: Physiological saline concentration—that is, the sodium chloride concentration in our bodies—is…

A: Record the given data, Molarity of NaCl solution is 0.16 M  Volume of NaCl taken is 25.0 ml = 0.025…

Q: A sample of 10 ml of a solution of KBr has a mass of 12.60g. When the solution evaporates, the…

A:

Q: In her chemistry class, Rachel is preparing a special solution for an experiment that she has to…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: In the standardization of NaOH solution, 0.8211 g potassium hydrogen phthalate (204.22 g/mol) is…

A:

Q: In the standardization of a solution of NaOH against 2.508 grams of oxalic acid (H2C2O4•2H2O), 42.53…

A: An acid exactly neutralizes the same number of equivalents of base and vice-versa. milliequivalents…

Q: In the following chemical reaction, what product is represented by X? AICI, + NAOH X + NaCl AICI, A.…

A: In this question, we have to find out the correct answer of given problem by the help of "balanced…

Q: Express 1:690 as a percentage strength. 0.14% O 0.15% O 0.144% O 0.149%

A:

Q: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3,…

A: The hardness of water (hardness count) is usually expressed in parts per million (ppm)  (by mass) of…

Q: Cocaine (C17H21O4N) is a natural substance found in the leaves of the coca plant, which has been…

A: -

Q: The reaction of hypothetical elements: A, B, C, D, and E, follows the molecular equation: AB2(aq) +…

A: Spectator ions :-  The ions which do not take part in chemical reaction taking place in solution and…

Q: Which of the following elements will react with magnesium sulfa barium zinc iron copper

A: We are given Magnesium sulfate------>MgSO4.

Q: 2+ In the laboratory you are given the task of separating Ba* and Fe* ions in aqueous solution. For…

A: To seperate the ion in the given aqueous solution, we have to know the solubility of the formed…

Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: Explanation:  Option D is correct  [C,H,O,N]      Soil organic matter is composed chiefly of carbon,…

Q: What volume of 0.244 M NaOH, in milliliters, contains 30.0 g of NaOH? Volume mL %3D

A: Molarity of the solution is obtained by dividing the number of moles of solute by the volume of…

Q: What is the mass of sodium iodide in 50.0 mL of 2.63 x 10 -2 M NaI( aq)?

A: Volume = 50.0 mL = 0.050 L Molarity = 2.63 × 10-2 M  Mass of NaI = ?

Q: A 12.0 wt% solution of CaCl2 (110.98 g/mol) has a density of 1.107 g/mL. What is the mass, in…

A: Since you have posted mulitiple question in a session, we are entitiled to answer only first…

Q: 4. Complete the following reactions and write net ionic equations for each if any. a) Pb(NO,), and…

A: spectators are not included in the net ionic reaction.

Q: The volume of H2SO4 acid has a purity of 98% and a density of 1.83, which is required to prepare 0.1…

A: In such questions mass of solute i.e H2SO4 remains equal in both cases.

Q: Describe any visual differences between the hydrated sample and the dried, anhydrous form. How would…

A: Mass of alum taken = 2.0 g Mass of water released = 1.48 g( the value calculated is correct) Mass of…

Q: Identify each of the following as an acid, base, or salt, and give its name: a. HBrO2 b. CsOH c.…

A: Identify each of the following as an acid, base, or salt, and give its name:

Q: The reaction of hypothetical elements: A, B, C, D, and E, follows the molecular equation: AB2(aq) +…

A:

Q: In the laboratory you are given the task of separating Ag* and Zn* ions in aqueous solution. For…

A: The given ions for the separation are: Ag+ and Zn2+. Ions can be separated in the form of…

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".