Discuss the contribution of Amadeo Avogadro to the quantitative aspect of Chemistry.

Q: 13. (d) Pharmacists sell tablets containing magnesium hydroxide, Mg(OH),, to combat indigestion. A…

A: Given that: Volume of HCl = 32.00 cm3 Molarity of HCl = 0.500 mol dm–3 HCl Mass of tablet = 500mg…

Q: Using grammatically correct English sentences, describethe relationship between the number 6.022 *…

A: Number of moles of a chemical compound is used to measure the amount of compound in a given mixture…

Q: Most abundant metal on the surface of the earth:(a) Iron(b) Aluminium(c) Calcium(d) Sodium

A: There are many metal on the surface of the earth but the one that is most abundant on the surface of…

Q: What is the basis of distillation?

A: There are various techniques which are used for the separation of liquids. Some of these are…

Q: What is the difference between a reactant and products?

A: Reactants are the substance/compound that are present at the starting of the chemical reaction and…

Q: The reaction for the Haber process, the industrial production of ammonia, is N2(g) + 3H2(g) -…

A: Given;

Q: Ca2+ in Cao,

A: In Li2O there is Li+ and O2- is present hence each oxygen atom is valance by 2Li+ ions... Hence in…

Q: 1. Ethane gas, C:H6, burns in air (i.e reacts with oxygen in air ) to form carbon dioxide and water:…

A: Ethane combustion to form carbon dioxide and water, from this balanced stoichiometric equation used…

Q: Q29 Santa Monica Big Blue Bus operates a fleet of CNG buses, which run on compressed natural gas…

A: Given the mass of Carbon(C) inside the CNG vehicle = 72 Kg First, we have to convert the 72 Kg C to…

Q: coal? CO

A:

Q: You are told by your instructor to go to the stock room and find a bottle of the chemical K3Cl. Does…

A: K is potassium, element of group 1 of periodic table with 1 valence electron And Cl is chlorine,…

Q: Mass of the Mass of the Scenarios/Reactions Reactants Products 1. Rusting of iron 4Fe + 302 + 2H2O →…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: What are the potential errors that could occur when using the Kjeldahl method to determine the…

A: Kjeldahl method principle : Strong acid helps in the digestion of food and liberates nitrogen which…

Q: Complete the following table.

A: Symbol number of protons number of neutrons number of electrons atomic number mass number net charge…

Q: 5 g of anhydrous strontium nitrate is added to a beaker and exposed to air. After several hours the…

A: Given that -  Mass of strontium nitrate =  5 g  Mass of water Increases due to exposed in air = 1.70…

Q: Explain, in terms of the composition, why sample A represents a pure- substance. * B 8.

A: Those substances which have mass and occupies space is known as matter. Matter can be classified…

Q: (s) + 6H

A: In given reaction 2Fe(S) + 6H+(aq) ⇔ 3H2(g) + 2Fe3+(aq)  How to disturb the reaction for result in a…

Q: What is the relationship between calculating the amount of iron in a vitamin pill and physical…

A: The analysis of present iron in a supplement tablet can be done by a redox titration reaction. Iron…

Q: c) (NH),CO,() 2 NH,(g) + CO,(g) + H,O(g) d) Ag,SO,(0) = 2 Ag (aq) + So (aq)

A: The equilibrium constant expression involves only liquid and gas and not solid. Equilibrium constant…

Q: 2. What measurements might you record regarding water samples to assist with the quantification…

A: Q2)  The analysis of water samples are done to know the water quality of the water.

Q: Cu 5) Cu(NO3)2 AGNO, Ag + à +

A: _ AgNO3 + _ Cu -------> _ Cu(NO3)2 + _ Ag

Q: Find in the chemical literature at least three values for the molar mass of lithium determined since…

A: "Since you have posted a question with multiple sub-parts , we will solve first sub-parts for you .…

Q: Th e Canadian Ambient Air Quality Objective for ground-level ozone is 82 ppb. What is the maximum…

A:

Q: The percentage of argon gas in dry air A. 0.035% B. 0.065% C. 20.9% The percentage of other gases in…

A: Composition of gases in dry air is  1 O2      20.9% 2.N2      78.1% 3 Ar      0.93%

Q: What do the formula H2O and H2O2 tell about composition? Are they the same compounds? Justify your…

A: The formula H2O and H2O2 belong to two different compounds. The chemical formula of H2O belongs to…

Q: Balance the following chemical reaction. _FS 02 Fe203 So2

A: Given: The correct  unbalanced chemical equation must be:   FeS  + O2   →Fe2O3 + SO2

Q: The core of planet Earth is primarily composed of oxygen and silicon O gold and silver O iron and…

A:

Q: All of the platinum ever mined = 25 ft3 What is the price of all of the paltinum ever mined?…

A: The conversion of volume of platinum from 25 ft3 into cm3 can be done as,

Q: The reaction for the Haber process, the industrial production of ammonia, is N2(g) + 3H2(g) →…

A: Given;

Q: What was Dmitri Mendeleev’s major contribution to the field of chemistry?

A: Dmitri Mendeleev is a chemist born in Siberia and has great inventions in the field of science. He…

Q: 1. Atomic spectroscopy analyses the elemental composition of the sample, essentially giving data to…

A: Dear student since it is a multiple subparts questions according to guidelines here I am solving…

Q: who received the Nobel Prize in Chemistry in 1912 ?

A: Nobel prize is one of the highest rank award given in the fields of chemistry, physics, literature,…

Q: Differentiate between "Complete Analysis”, “Ultimate Analysis” and “Partial Analysis”. Give an…

A: In the complete analysis, various parameters are studied ( for example percentage of moisture,…

Q: A student found that her mixture was 13% NH¼CI, 18% NaCl and 75% SIO2. Assuming that her…

A: on addition of the given percentages, the total percentage of the solution comes out to be as 106%…

Q: The elements of Group 1-B (Cu, Ag, and Au) are sometimes referred to as the “coinage  metals.” Why?…

A: Elements Copper ( Cu),  Silver ( Ag) and Gold (Au) are called as 'coinage metals' because as they…

Q: 1- lopper and nitric acis Porassium ioaize

A: "Since you have asked multiple questions, we will solve the first question for you ( as per our…

Q: What do the formula H2O and H2O2 tell about composition? Are they the same compounds? Justify your…

A:

Q: What are advantages and limitations of different types of modelling? (modelling with experiments,…

A: In chemistry there are many ways to check the deviation of experimental data from the accurate…

Q: The nature of the elemental matter depends on which factor in the atom and what factors are added to…

A: Valence electrons are the electrons present in the outermost shell.

Q: Describe the PHYSICAL PROPERTIES of the following substances Specifically, what type of matter is…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What is the mass of a golf ball traveling at 74.6 m s-1? The rest mass of a golf ball is 45.9 g, as…

A:

Q: Discuss 5 advantages and disadvantages of palm oil source of oleochemicals in Malaysia.

A: Advantages of palm oil source of oleochemicals in Malaysia. 1) Malaysia contributes about 20% to the…

Q: What is the mass, in grams, of 7.82 x 1016 molecules of oxygen?

A:

Q: 11. O2 is - and N, is very . a. reactive, reactive b. reactive, inert c. inert, inert d. inert,…

A: 11. The triple bond is stronger than double bond. Therefore, it needs a lot of energy to break the…

Q: Ca(OH)2 + AgCI CaCI2 + AgOH

A: In the given question, First of all we see the no. of each atom present in reactant side and product…