An unknown solution is analyzed by selective precipitation. The solution is treated with 6M HCl, yielding a precipitate. The addition of a few milliliters of hot water causes the precipitate to dissolve. A solution of sodium dichromate is added, yielding a bright yellow precipitate. What cation is indicated by this series of experiments? Hg2+ Pb²+ Ag+ Hg₂2+

Q: what is the precent mass of oxalat in (K3Fe(C2O4)3·3H2O, 491.3 g/mol)?

A:

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

A: Chemical reactions can be added, subtracted, or multiplied like an algebraic equation.

Q: Consider the table. ITITE Metal Tm (K) AHfus (kJ/mol) Tp (K) AHvap (kJ/mol) Li 454 2.99 1615 134.7…

A: We have given that For K ∆Hfus = 2.33 kJ/mole = 2330 J/mole                       Tm = 336 K   ∆Hvap…

Q: Calculate the molar mass of Al(C2H302)3. Aluminum is element 13; Carbon is element 6; Hydrogen is…

A: Check the atomic mass for each element and use it to calculate the molar mass of Al(C2H3O2)3.

Q: Which of the listed elements is most metallic?(a) Al (b) N (c) P (d) O

A: Which of the listed elements is most metallic? (a) Al (b) N (c) P (d) O

Q: Which species is being oxidized in the following reaction? 2 Au(NO3)3(aq) + 3 Ca(s)3 Ca(NO3) (aq) +…

A:

Q: If the formula of an oxide of element X is X₂03, what is the formula of the chloride of X? (A) XC13…

A:

Q: 4. Identify the Z + 8 element for Si.

A: 4.   Given: Element is Silicon (Si) We have to find the element which is Z+8 for Si

Q: Consider the balanced reaction 6 A + 5 B → 7 C + 7 D. If 6.65 moles of D (MW = 29.59) are produced,…

A:

Q: Given= 3.0 M Ca(oH)2 & 2.5L Looking For = g CacOH). M × L = (3.0MX2.5 L) mol= 7.5 mol CaloH )2 M=…

A: The weight of Ca(OH)2 has to be given,

Q: A sample of a uranium compound is found to be losingmass gradually. Explain what is happening to the…

A: Uranium is a radioactive element which disintegrates spontaneously.

Q: B Na,S O,

A: 6) To write net ionic equation, follow the below mentioned steps: 1)Write balanced chemical…

Q: Classify each of the following fifth-row elements as a metal, a metalloid, or a nonmetal: (a) Y (b)…

A: The metals are elements that are aligned left side of the periodic table and have a tendency to lose…

Q: 14. Copper has two isotopes, Cu-63 and Cu-65. The average atomic mass of copper is 64.928 g/mol.…

A: Given, Mass of Cu = 63 Mass of other isotope of Cu = 65 Avg. mass = 64.928 g/mol

Q: A sample of cesium metal reacted completely with water, evolving 2.028 mmol of dry H 2 at 19 degrees…

A:

Q: Give the systematic name for the following substance: NC14

A:

Q: 1.000g MgCO3 is reacted with 0.750 g HCl. MgCO3 + 2HCl  ⎯→ MgCl2 + CO2 + H2O What is the…

A: The given reaction, MgCO3 + 2HCl   →  MgCl2 + CO2 + H2O Theoretical yield of the product is given…

Q: Assume vit K1 makes up 0.052% ( by mass) of cilantro. How many moles of vit K1 is there in your…

A: Vit K1 makes up 0.052% (by mass) of cilantro. 1 tsp of cilantro is used here and volume of 1 tsp is…

Q: K(s) Ca(s)

A: A question based on electrochemical series, which is to be accomplished.

Q: 4oloctron uminum lóA AlT ఆంం canfiquratioA Ale 3+ lán Al

A: To find out the electronic configuration of an ion at first, find out the electronic configuration…

Q: During World War II, physicists developed methods to separate the uranium-235 and -238 isotopes. One…

A: Isotopes: The atoms of the same element, when have a different number of neutrons, are called…

Q: Is 1s22s22p6 the symbol for a macroscopic property or a microscopic property of an element? Explain…

A: Property of a molecule can be macroscopic or microscopic. Macroscopic property represents the…

Q: What is the molecular weight of Ca3(PO4)2? amu

A: Determine molecular weight of the given compound---

Q: 2px зру 2.Draw an energy-level diagram for Polonium, Po (atomic number=84).

A:

Q: 3) In a far away land and long ago, a series of experiments were carried out. Three samples of…

A: In 2) Use law of constang proportion Divide the both Kalium and pyron masses We see that A same and…

Q: what is the mass percentage of water in Zn(NO3)2*6H2O?

A: Mass percentage of water = Mass of waterMass of Zn(NO3)2.6H2Ox100There are total six water molecule…

Q: Aunt Julie went to the jewelry store to buy a gift for her amiga. As an aunt from Poveda, she knows…

A: The karat scale is typically used to measure the purity of gold in jewelry. Pure gold is considered…

Q: Naturally occurring silver consists of 107Ag (106.905 u) and 109Ag (108.905 u). What is the relative…

A: The relative abundance of an isotope is the percentage of a particular isotope that occurs in…

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.