One manufacturer’s instructions for setting up an aquarium specify that if boiled water is used, the water must be cooled to room temperature and allowed to stand overnight before fish are added. Why is it necessary for such period of time?

Q: ppm mean that 100 100 kg per liter. 100 g per liter. 100 mg per liter. O

A: ppm refers to parts per million concentration.

Q: Write about ill effects of thalidomide and what followed its tragedy.

A:

Q: Types of corrosion are.

A: In this question we have to choose types of corrosion with explanation.

Q: 28 27.0769 92.23 Silicon 29 28.9765 4.67 30 29.9738 3.10

A: Calculate the average atomic mass ---

Q: How many clarification of water. O Three. O Four. O Two.

A: Option A is correct answer. three.

Q: 1. What are the two reactants used to synthesize the Aspirin? 2.  Why is water added to the reactio...

A: Aspirin is synthesized through the esterification of salicylic acid by the acetic anhydride.The reac...

Q: The free energy change for the following reaction at 25 °C, when [Sn2+] = 1.19 M and [Zn2+] = 7.83×1...

A:

Q: Gaseous butane (CH;(CH,) CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

A: Percent Yield is the ratio of actual yield to theoretical yield , multiplied by 100. In this questio...

Q: A. Morphine is a type of pain medication derived from plants of the opiate family. It has the molecu...

A: Given, Molecular formula of morphine=C17H19NO3  molar mass of morphine=285.34 g mol-1  then,  

Q: At 483 K, this reaction has a K. value of 0.0481. 2 X(g) + 3 Y(g) =Z(g) Calculate Kp at 483 K. Note ...

A:

Q: (CH;(CH),CH) reacts with gaseous oxygen gas (o, to produce gaseous carbon dioxide (Co,) and gaseous ...

A:

Q: Arrange the trend of decreasing boiling point for the compounds – acetone, acetic acid, and isopropy...

A: Boiling point depends on the intermolecular forces. Higher is the intermolecular force, more is the ...

Q: A moture of gaseous reactants is put nto a cyinder, where a chemical reaction turns them nto gaseous...

A:

Q: 2. Explain how Lavoisier's Law of Conservation of Mass supports Democritus' theory that atoms cannot...

A: Please find your solution below : Atom is the smallest unit of matter. It is defined as the basic bu...

Q: Color BEFORE adding Color AFTER adding Intensity of color AFTER adding FeCl3 Test Tube # FeCl3 FeCl3...

A: Using a melting point apparatus, Determine the melting point of obtained crude aspirin and recrytal...

Q: QUESTIÓN 7 A buffer that contains 0.38 M of a base, B and 0.24 M of its conjugate acid BH*, has a pH...

A:

Q: Mercury and bromine will react with each other to produce mercury (II) bromide: a. What mass of HgBr...

A:

Q: Seawater was spiked with phosphate to achieve a quantifiable range of phosphate concentrations by th...

A: A question based on analytical process that is to be accomplished.

Q: (Q106) Consider the decomposition of nitrosyl bromide into nitrogen monoxide and bromide gas, which ...

A:

Q: 1. Given that the formation enthalpies and entropies of the selected ionic compound, cation, and ani...

A:

Q: What is the pH of a 0.159 M aqueous solution of ammonium perchlorate, NH4ClO4 ? pH =  This solutio...

A: Given, Concentration of ammonium perchlorate (NH4ClO4) aqueous solution = 0.159 M   

Q: Draw the optical isomers of CH3-CHOH-CHOH-CH3 . INDICATE the absolute configuration (R/S) of each ch...

A: An optically active compound has chital carbon atom.A chiral carbon atom is one which attach with fo...

Q: Calculate the pH of the following solutions 0.0040 M Ba(OH)2

A:

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A:

Q: Preparation of Ascorbic Acid Stock Solution and Dilution.    Problem: Determine the amount of 500 ...

A:

Q: A total of how many signals are expected in the H spectrum of the given compound?

A:

Q: 35 34.9689 75.77 Chlorine 37 36.9659 24.23

A:

Q: 2 3. NEXT > Fill in the ICE table with the appropriate value for each involved species to determine ...

A:

Q: Gypsum is the hydrate of calcium sulfate, CaSO4 · 2 H2O.  It is the primary material in sheet rock, ...

A: Weight of Gypsum( CaSO 4 · 2 H 2O)  = 21.05 g

Q: Which of the following best describes the major product in the following equilibrium reaction? NH2 t...

A:

Q: Types of volumetric analysis are. * O Three. O Five. O Four.

A: volumetric analysis : This method is also known as Titration.

Q: Which one hardness type that remain after boiling process. * Temporary hardness. O Permanent hardnes...

A:

Q: The initial enrichment of uranium in LWRS is 3% and the final (at discharge after 3 years in the cor...

A:

Q: MOLAR MASS MASS (9) FORMULA NUMBER OF MOLES (g/mol) 2. CHNOS 0.4249

A:

Q: Ge As (1) The element with an electron configuration of 1s²2s²2p®3s²3p64s²3d5 is in group and period...

A: Identification of group and period:

Q: Describe the following gel matrices used in gel filtration chromatography and discuss the types of s...

A:

Q: What is a protecting group in a multi synthesis reaction in organic chemistry

A: Protecting groups are used in synthesis to temporarily mask the characteristic chemistry of a functi...

Q: Use the References to access important values if needed for this question. 1A 3A 4A SA 6A 7A He BCNO...

A: Atomic mass of Ti =22 Atomic mass of Sc= 21  

Q: Indicate how the concentration of each species in the chemical equation will change to reestablish e...

A: Equillibrium constant gives the relation between concentration of product and reactant at equillibri...

Q: Nitrogen dioxide is one of the many oxides of nitrogen (often collectively called "NOx") that are of...

A: The reaction can be written as: 2NO2 (g) ⇌ N2O4 (g) 

Q: www-awu.dieks.com/aiekscgi ARL O THERMOCHEMISTRY Calculating specific heat capacity A chemist carefu...

A: Given,  The mass of a substance = 623.0 g.       The heat needed to increase the temperature from 2....

Q: Choose the one that shows an increase in ∆U and expansion at constant pressure? a. Reaction with ∆H...

A: A question based on chemical thermodynamics that is to be accomplished.

Q: (b) What do you mean by enzyme catalysis? Derive Michaelis-Menten's equation?

A:

Q: After completing part II of the experiment, a student uses her calibration curve to find that the eq...

A: We would first write a reaction between Fe3+ and SCN- to form product [FeNCS2+]  , then we would dra...

Q: What is the name of the reducing monosaccharide found in the disaccharide shown here но HO H HO OH O...

A:

Q: Br O,N O,N AIBR3

A:

Q: nixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseo...

A:

Q: blö 5 How many grams of Na3PO4 required * ?to prepare 8 N in 500 ml 323.6 gm. 218.6 gm. O 656 gm. O

A: Given that , Normality of the solution = 8N Volume of solution is = 500 ml. we have to calculate how...

Q: (a) Discuss the stepwise mechanism for the hydrogenation of alkenes using Willkinson's catalyst by t...

A:

Q: MOLAR MASS

A:

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.