Your lab colleague doesn’t understand why you want make a stock solution and then dilute it when you can just make 450 mL of a 2.5M solution using solid potassium bromide. You agree with your colleague and decide to do it their way. How much magnesium chloride would you now weigh out?

Q: QUESTION 4 Which of the following compounds cannot hydrogen bond? O CH3NH2 OCH3CH(OH)CH3 O (CH3CH2CH...

A:

Q: Which reactions shows where Kp is equal to Kc. 4 HCl(g) + O2(g) ⇌ 2 Cl2(g) + 2 H2O(g) 2 BrCl(g) ⇌ ...

A:

Q: Nitrogen dioxide decomposes according to the reaction: 2 NO2(g)  2 NO(g) + O2(g); Kp = 4.48 x 10-13 ...

A: Please find your solution below : Chemical equilibrium is a state in which there is no change in amo...

Q: An excessive amount of LiBr solid is added to water to form a saturated solution at 1 atm and 25 °C....

A: We would use the factors which affect the solubility of solid in water to check which process will i...

Q: Which one travels smallest distance? a. beta radiation b. gamma radiation C. alpha radiation d. prot...

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Q: The standard cell potential for the reaction at 298.15 K: Fe (s) + Zn2+ (aq) ⇋ Fe2+ (aq) + Zn (s) i...

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Q: How do amino acids bond together ? Use a basic diagram of an amino acid molecule ato show how 2 amin...

A: We have to show bonding of amino acids ,type of reaction, and type of bond Formed.  

Q: (a) ŢLi + ? → 2He → 2;He (b) 14 C → 14 N+? (c) He ? + ¿n Al + 27 13 Не (d) 250 Cm → ?+g Sr + 4,n 38

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Q: Question 18 The cell notation for the Galvanic cell is Cd(s)/Ca2*M2(s)/I" The Standard Reduction Pot...

A: This is a redox reaction. In this reaction, Cd oxidised to Cd2+ and I2 reduced to I- .  Using Nernst...

Q: Which of the groups below is capable of only hydrophobic interactions? a b c d e

A: The answer is as follows:  

Q: Predict the temperature value for the following- 1-butanol compared to ethanol and Isopropanol (high...

A: Answer: 

Q: 25. Which one of these molecules do you expect to have the largest value of Amax? а. Ethylene b. 1,3...

A: 25.  Answer : A dodecene (12 double bonds) consisting of fully conjugated alkenes. Explanation : Abs...

Q: QUESTION 1 If 47.91 mL of distilled water at 99.9 °C is added to 49 mL of distilled water, in a coff...

A: Heat released by distilled water at 99.9 °C  = Heat absorbed by distilled water at 22.41°C + Heat ab...

Q: Question 4 What is the purpose of the salt bridge in an electrochemical cell? To maintain electroneu...

A: This question is related to electrochemistry. Electrochemistry is branch of chemistry in which oxida...

Q: Molecular Formula:C6H1202, EOU = IR (cm-1): 2951 bond 1743 bond Fill-up this > M+ (m/z) 1H NMR (ppm)...

A: C6H12O  

Q: At 100°c and 2 bar pressure, the degree of dissociation of phosgene is 6.30 x 105. Calculate the equ...

A: The reaction given is, => Given: Degree of dissociation = 6.30 × 10-5  Temperature = 100 oC And ...

Q: confidence? Q critical = experimental Q = Therefore ______ (yes or no) the suspicious data can be re...

A: Firstly, the N values comprising the set of observations under examination are arranged in ascending...

Q: Metal ligand bonds tend to be weak and often are observed to vibrate below 600cm-1. Can you foresee ...

A: Metal ligand bonds tend to be weak and often are observed to vibrate below 600cm-1.  

Q: At 25 °C, the equilibrium partial pressures for the reaction A(g) + 2 B(g) = C(g)+D(g) were found to...

A: Given, A(g) + 2B(g) ⇌ C(g) + D(g) Equilibrium partial pressure for all the above species: PA = 4.22 ...

Q: Categorize each alcohol below as primary, secondary or tertiary ОН OH

A: Definations       

Q: A) B) :o: C) HO Name the following structures:

A: IUPAC Rule- Find and name the longest continuous carbon chain. Identify and name groups attached to...

Q: a gas at 250k and 15 atm has a molar volume 12 percent smaller than that calculated from the perfect...

A: Using the compression factor equation and relationship we get the answer

Q: A reactant decomposes with a half-life of 149 s when its initial concentration is 0.312 M. When the ...

A:

Q: Determine the concentration of A in 2A -> product second order reaction after 45 seconds. Use the gi...

A:

Q: When is the fugacity equal to the partial pressure of a gas? O Fugacity is equal to partial pressure...

A: Given : We have to explain whether fugacity is equal to partial pressure of gas.

Q: Was there any physical change in the characteristics of trichloroethane when it was added to water?

A: Trichloroethane is micible in water. When it is added to water there is no any physical change.

Q: The average atomic weight of copper, which has two naturally occurring isotopes, is 63.5. One of the...

A: Given, The average atomic weight of copper  is 63.5. One of the isotopes has an atomic weight of 62....

Q: 1. What is overall change in entropy of the reaction: Al:(CO:): -> Al:Os + 3 CO: Al:(COs); = 12.8 J/...

A: Answer: Entropy of the system is the measure of its disorder or randomness.

Q: What ending should each of the molecules below have? a) Alcohols b) Aldehydes c) Carboxylic acids d)...

A: The ending of the name of the compound containing a functional groups is derived from the type of fu...

Q: How many moles is 0.025 g of NaCO3

A: Given :  Mass of NaCO3 = 0.025g

Q: Write the pressure equilibrium constant expression for this reaction.

A:

Q: Which one of the following could be a product of the reaction shown below? OH H* catalyst ??? HO. OH...

A:

Q: A mixture of the 8-hydroxyquinoline complexes of Al and Mg weighed 1.0843 g. When ignited in  a furn...

A: Given: The mass of sample = 1.0843 g. And the mass of Al2O3 and MgO formed = 0.1344 g. Assuming the ...

Q: The hydronium ion concentration of an aqueous solution of 0.429 M diethylamine (a weak base with the...

A:

Q: will have the highest boiling point. O 3,4-Diethyl-octane-1,1-diol Decane O 2,3-Dimethyl-1-octanol O...

A: Boiling point:The temperature at which the vapor pressure of a liquid becomes equal to the atmospher...

Q: n the presence  of excess thiocyanate ion, SCN-, the following reaction is first order in iron(III) ...

A:

Q: Which of the following can be classified as buffer solutions? (Select all that apply.) O0.50 M HOCI ...

A: A buffer solution is a solution that can maintain its pH even after the addition of small strong aci...

Q: Use the References to access important valu The pH of an aqueous solution of 0.267 M ammonium bromid...

A: The PH  of NH4Br can be calculated as

Q: determine whether they are the same, diasteromers, enantomers

A:

Q: Which is the reductant and oxidant in the reaction? S2O32- + I2 → I- + S4O62     I2 is the reduct...

A: The reaction given is, => S2O32- + I2 → I- + S4O62-   

Q: In recrystallization, crystals gathered are washed with cold solvent. What would its effect on purit...

A: When a reaction is carried out, the product obtained is mostly accompanied by some other substance t...

Q: How much heat is involved when an 8.50 kg copper is heated from 25 °C to 1000 °C? Specific eat of co...

A: We have to predict the heat involved in raising the temperature.  

Q: The equilibrium constant for a reaction A +B = Y +Z is 0.1. What amount of A must be mixed with 3 mo...

A: Equilibrium constant represent the ratio of concentration of product and reactants at equilibrium.

Q: 2. Name the following hydrocarbons using the IUPAC system: CH3(CH2)2CH3 СНЗСН2CI а. b. c. CH,CH=CHCC...

A: According to bartleby answering guideline we are supposed to answer only 3 subparts of the question ...

Q: explain the results of this experiment table 2    Test Tube Number Cobalt Chloride Concentration...

A: The concentration v/s absorbance data given is,   Test Tube Number Cobalt Chloride Concentrati...

Q: In a body-centered cubic unit cell, which part(s) of the 3D unit cell do the atoms occupy? corner ed...

A: A body-centered cubic unit cell  consists of atoms arranged in a cube where each corner of the cube ...

Q: E, = kJ - mol- What is the value of the pre-exponential factor (sometimes called the frequency facto...

A:

Q: What is the pH of a solution that has a hydrogen ion concentration of  1.6×10−8 M ?

A: Given :- hydrogen ion concentration i.e. [H+] = 1.6 × 10-8 M  To determine :- pH of solution

Q: Find the mass of a solid gold rectangular bar that has dimensions of 6.35 cm x 12.5 cm x 33.3 cm. 4....

A:

Q: e type of reaction bas

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.