Take about 5 ml of dil. HCl in a test tube and add a few pieces of fine granules to it.Which gas is evolved?(a) Chlorine(b) Hydrogen(c) HCl(d) Nitrogen

Q: Titanium(III) oxide is prepared by reaction of titanium(IV)oxide with hydrogen at high temperature.…

A: Oxides are the compounds having one or more oxygen atoms combined with other elements. The binary…

Q: What is the pH of a solution with [H3O+]=2.42 x 10-4?

A: pH of any solution is given by  pH = -log[H3O+] where [H3O+]= concentration of H3O+ ions

Q: When a geologist adds a few drops of HCl to arock, gas bubbles form. What might the geologist…

A: Dilute hydrochloric acid will react with carbonates such as calcite to give off appreciable bubbles…

Q: Is phosphat and phosphoric acid the same? Or are they two different things?

A: Phosphate: It is a chemical derivative of phosphoric acid. Its chemical formula is (PO4)-3. Its…

Q: Describe the autoionization of water and explain how [H3O+] and[OH-] are related via Kw?

A: Autoionization reaction is a reaction that takes place when a proton is carried from one molecule to…

Q: 2. Describe the variation of the acid strength for the hydrogen halide series and explain which one…

A: Arrange the acids in increasing order of acidic strength--

Q: Write the basic equilibrium equation for PO₄³⁻

A: Bronsted-Lowry acid-base theory: According to the Bronsted-Lowry acid-base theory, acid is a…

Q: Which is the stronger acid, NaHSO3 or NaHSO4?

A:

Q: Al, Al2O3 en Al(OH)3 is amphoteric. A) Explain what the statement means? B)Give reaction equations…

A: Amphoteric substances are those substances which reacts with both acid and base due to having…

Q: What mass of Hydrazine reacts with 250mL of 0.146M H2SO4

A:

Q: Explain the differences in chemical and physical properties of metals and nonmetals, including the…

A: Metals are placed on the left-hand side of the periodic table, and non-metals on the right-hand side…

Q: The elements sodium, aluminum, and chlorine are in the same period. (a) Which has the greatest…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: If the equilibrium constant for 3A+3B= 3C is 0.169, then what is the equilibrium constant for 2C=…

A: Consider the information is as follows; 3 A   +    3B     ⇌     3C                 Keq=0.169…

Q: 8. What are the [H3O+] and [OH–] of Diet Coke that has a pH of 3.17?

A:

Q: Complete and balance equations for the following reaction

A:

Q: How to get potassium hydroxide from potassium iodide? Give a detailed explanation of a process.

A: Potassium hydroxide is KOH.  Potassium Iodide is KI.   Reaction of KI  with hydrogen peroxide makes…

Q: 4. What volume of 2.25M H;SO, should be diluted with water to prepare 1.5 Lof 1.20 M acid?

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: Write the chemical reaction of HC2H3O2 with water.

A:

Q: The Properties, Reactions and Applications of Oxygen Explain the classification of oxides as basic,…

A: We will answer all parts of questions

Q: calcula la molaridad de una disolucion de acido sulfurico (H2SO4) que se preparo disolviendo 58g del…

A:

Q: What are the [H,O*| and [OH] of Diet Coke that has a pH of 3.17? ()

A:

Q: How many litres of 0.265 mol/L solution of phosphoric acid are necessary to completely neutralize…

A: Given, Molarity of phosphoric acid = 0.265 mol/l Molarity of ammonia = 0.325 mol/l Volume of ammonia…

Q: Complete and balance the following acid-base equations:(a) A solution of HClO4 is added to a…

A: Precipitation reaction It is the formation of an insoluble salt when two solutions containing…

Q: Write an equation to show the reaction between plaster of Paris and water.

A:

Q: Write a net ionic equation for the equilibrium that causes the solution of KHTar in water to be…

A: KHTar is used for potassium acid tartarate. A solution is said to be acidic when there is the…

Q: A volume of 5.0 L of polluted air at 18.0°C and 747 mmHg is passes through limewater [an aqueous…

A: First note the reaction between calcium hydroxide and carbon dioxide. CO2 + Ca(OH)2 à CaCO3 +H2O The…

Q: How many grams of lithium oxide must be carried on board to remove 80.0 kg of water?

A: Given, The amount of water = 80 Kg The chemical reaction of lithium oxide and water is; Li2O(s) +…

Q: Which is the stronger acid, HClO4 or HBrO4? Why?

A: Chlorine (Cl) and bromine (Br) are halogens which belong to group VII A with a valence electron…

Q: What is the relationship of potassium with PH ?

A: Interpretation- We have to tell the relationship of potassium with the pH -      Introduction -…

Q: What is the pH of 0.035 mol L solution of HF (K, = 6.8×104)? %3D

A: In the question, we are given- Concentration of HF = 0.035 mol L-1 Ka = 6.8 x 10-4

Q: What is the pH of a 6.7 × 10⁻⁴ M HClO₄ solution?

A: Consider the dissociation of HClO₄ in water is as follows;      It is given that one molecule of…

Q: Which is the stronger acid, HClO3 or HBrO3? Why?

A:

Q: The elements of Period 3 of the P.T are: sodium, magnesium, aluminium, silicon, phosphorus, sulphur,…

A: I explained both of the parts using MgO

Q: Write a balanced equation to show: The formation of gas bubbles when cobalt reacts with hydrochloric…

A: A balanced equation is that chemical equation\reaction in which the number of atoms of each element…

Q: What is the hydronium ion concentration [H3O+] of sea water which has a pH of 8?

A:

Q: which among sodium, nitrogen, phosphorus, and aluminum is most likely to form a strong acid with…

A:

Q: Name the gas evolved : When dil. sulphuric acid reacts with sodium sulphite.

A:

Q: 4. When H,PO, reacts with H,O in an acid/base reaction, H;O° acts as the acid. The conjugate base of…

A:

Q: (a) How does the metallic character of an element correlate with the acidity of its oxide? (b) What…

A: a) Oxide of an element is more acidic when electronegativity of oxygen is greater than the element.…

Q: The elements sodium, aluminum, and chlorine are in the same period.(a) Which has the greatest…

A: Across the 3rd period, on moving left to right the size of the element decreases continuously…

Q: xplain the classification of oxides as basic, acid, amphoteric and neutral. how can we predict…

A: Oxides can be classified as acidic, basic, neutral, and amphoteric. Acidic oxides: Oxides that react…

Q: What are the pH, pOH and [H3O]+ for a 2.37 x 10-2M HClO4 solution? HClO4 is a strong mineral acid.

A: Given Data

Q: What the pH of a 1.47mol / L solution of HCN (aq) if Ka =3.5 x 10^ -11?

A: Given data,Molarity of HCN=1.47mol/LKa=3.5×10-11

Q: What is the pH of a 2.12.1 M solution of HClO4?

A:

Q: Would you expect an aqueous solution of manganese (VII) oxide to have a ph greater or less than 7.0?…

A: Oxidation state is the number of electrons that are either gain or lose by an atom in a chemical…

Q: What mass of hydrogen gas results from the reaction of 8.5 g of KH with water?KH + H2 O ⟶ KOH + H2

A: Given data contains, Mass of KH is 8.5g. The chemical equation is, KH + H2 O ⟶ KOH + H2 The molar…

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.