7. Calculate the atomic concentration (in cm-³) and density (in g/cm³) of the following, using their lattice constants, atomic weights, and Avogadro's number: (a) Si (lattice constant = 5.43 Å; atomic weight = 28.1) (b) Ge (lattice constant = 5.66 Å; atomic weight = 72.6) (c) GaAs (lattice const. = 5.65 Å; atomic weightGa = 69.7; atomic weight As = 74.9) (d) InP (lattice constant = 5.87 Å; atomic weightn = 114.8; atomic weightp = 31) %3D %3D %3D %3D

Q: 26 What is the molarity of each solution? (a) 47 g of KCl dissolved in enough water to give 375 mL…

A: (a)

Q: Ex 1: A 14.81 g sample of a zinc sulfate hydrate, ZnSO4•xH;O(s), is heated to dryness leaving 8.27 g…

A: Given: Mass of hydrate used = 14.81 g. And mass of anhydrous salt ZnSO4 produced = 8.27 g.

Q: (b) Draw a more accurate representation of one unit of C,H,O, dissolved in water.

A:

Q: What mass of sodium sulphate is required to prepare 500.0 cm3 of 1.30 M sodium sulphate solution?…

A: Molarity is a concentration term for a solution. The molarity of a given solution is defined as the…

Q: What is the mass percent of water to the the anhydrous? When calculating the formula weight, do we…

A: A question based on water of hydration, which is to be accomplished.

Q: In a hospital, an IV drip solution is prepared by dissolving 5.50 g dextrose, C6H₁2O6, in 100.0…

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Q: (7)What is the volume of 2.75 X 10^24 molecules of nitrogen trihydride has?

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: A  10.6% m/v ammonia solution is prepared by dissolving ammonia gas (NH3) into water. 225 grams of…

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Q: 1) The fizz produced when an Alka-Seltzer tablet is dissolved in water is due to the reaction…

A: The answer to both the Questions are given as -

Q: What volume (in mL) of 3.20 M HNO3(aq) needs to be added to excess Na2CO3(s) tc generate 4.85 L…

A:

Q: What amount (in mol) and what mass (in g) of water can be produced when 82.1 ug of ethane reacts…

A: Given data : Mass of ethane = 82.1 μg = 8.21 x 10-5 gms                 Its molar mass = 30.07…

Q: 5

A: Given information: 14.6 mL of 0.15 KMnO4 Mass of Na2C2O4 = 0.50 g

Q: What is the molarity of a solution if it contains 9.072 g of NaCl (molar mass = 58.44 g/mL)…

A: Given , Mass of NaCl =9.072 g Volume of solution =225.0 mL=225×10-3L

Q: A hydrate [hydrates have the general formula AB • xH2O] is found to have the percent composition: Na…

A: In hydrate Na is 19.17%, C is 10.00%, H is 4.17% and O is 66.6%. In anhydrate Na is 27.38%, C is…

Q: Calcium peroxytoctahydrate is synthesized according to the following reaction. During the synthesis…

A: Given data:  The given Chemical reaction is The weight of calcium carbonate taken=3.5 g The…

Q: A chemistry student adds a quantity of an unknown solid compound X to 1.00 L of distilled water at…

A: Answer:Solubility of a solution is equal to the ratio of mass of solute and volume of solution, so,

Q: 11.50.0 g of silver nitrate is mixed with 50.0 g of hydrochloric acid in a water based solution. A…

A:

Q: Calculate the concentration in %(w/w) of the following solutions. Assume water has a density of 1.00…

A: Dear student since you have posted multiple questions, As per BARTLEBY QnA guidelines we are allowed…

Q: Calculate the molarity of sodium thiosulphate (vi) pentahydrate, Na2S2O3.5H2O.

A:

Q: 1. Calculate the theoretical percentage of water for the following hydrates. (a) manganese(II)…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Aluminum content of an alloy; It is determined gravimetrically to form aluminum-8-hydroxyquinoline…

A:

Q: A sample of baking soda, NaHCO3, is decomposed while releasing steam and carbon dioxide gas as…

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Q: Consider the fictional element A (which has a molar mass of 7.00 g/mol) and the fictional element D…

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Q: A glucose solution is 30.0% C6H1206 by mass. It is simultaneously 1.87 M at 20 °C. (a) Compute the…

A: Density

Q: (a) the moles Ca3(PO4)2 produced from 5.2 mol Na3PO4 (b) the moles NaNO3 produced from 0.84 mol…

A: In a balanced chemical equation the coefficients of reactants and products indicate their number of…

Q: ect one: a. NHydrogen etoms7.729 10 b. Nydrogen atoms=8.445 102 C. NHydrogen atams2.576 10 d.…

A: 1 mole of any  substance  contains 6.023×1023 atoms

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.