34.5 grams of an unknown compound is dissolved in 300. mL of water.  The resulting solution has an osmotic pressure of 1.70 atm at a temperature of 50oC.  What is the molar mass of the unknown compound?  and make sure to assume the compound is a non-electrolyte.

Q: The pH of buffer solution that has Ka = 6.23 x 105 and 5a, = 3a, is: а. 4.43 b. 4.03 С. 4.38 d. 3.98...

A: pH = d.  3.98

Q: Which line and arrow electron configuration best represents the element oxygen? [He] It It Î Î 2p 2s...

A: Electronic configuration of O  = 1s2 2s2 2p4 Therefore,The line and arrow electron configuration bes...

Q: 1. Reaction of 2,3-dimethyl-1-butene with HBr leads to an alkyl bromide, C6H13Br. On treatment of th...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: 23. Molecules 1-4 are_? d. Lipids e. Carbohydrates f. Amino acids 24. Molecule 4 is composed of mono...

A: Answer of question 23,24,25

Q: Predict the products/ identify the reactants in the following reactions- draw the structure and show...

A: Solution of question 1 and 2:

Q: A standard galvanic cell is constructed in which a Sn2+ | Sn half cell acts as the cathode. Which of...

A: Correct answer is : The anode reaction could be Cr ------> Cr3+  + 3 e-  Reduction is taking plac...

Q: Magnesium and nitrogen react in a combination reaction to produce magnesium nitride. Mg + N2——->...

A:

Q: Predict the products/ identify the reactants in the following reactions- draw the structure and show...

A: Answer is explained below. 

Q: Which of the following compounds is soluble in water? O a. Hgl2 O b. PBSO4 O c. AgCl O d. Pb(C2H3O2)...

A: The answer of the above question is given in step 2 

Q: Q2. Distinguish between the following three polymerization procedures in terms of the initiator and ...

A:     The correct option is :-                                    (1) Radical polymerization.

Q: 1 2 peptide #1 hydrogen bond 26 residuesturn peptide #2 beta pleated sheet 3 Random coil a-helix 26....

A: Structure 1 is of DNA . Structure 2 is beta pleated sheets . Structure 3 is of protein .

Q: c. A carbon atom that is bonded to 4 different group

A: In this question asked that what is chiral carbon atom is And four options are given. 

Q: Calculate the molarity of the two solutions. The first solution contains 0.150 mol of NaOH in 2.15 L...

A: Given that :  For first solution , moles of NaOH = 0.150mol Volume of solution = 2.15L  Using the fo...

Q: Named bombykol, the sex pheromone secreted by the female silkworm moth has the formula C16H28O and t...

A:

Q: what is barye unit ? What is its definition? what is its history? explain complitly with barye histo...

A: Barye unit is the CGS unit of pressure.

Q: Q3. 2.027g of Salicylic acid is weighed and mixed it with excess acetic anhydride. (Show ALL steps ...

A: Given: Mass of salicylic acid = 2.027 g Known: Molar mass of salicylic acid =138.12g/mol Molar mass ...

Q: 1- Arrange the following isomers in order of incereasing boiling point (least boiling point first) a...

A: Lets us consider alcohol as I, ester as 2 and acid as 3. 1 and 3 has hydroxy group which can undergo...

Q: 1- Arrange the following isomers in order of increasing boiling point (least boiling point first) an...

A: Lets us consider alcohol as I, ester as 2 and acid as 3. 1 and 3 has hydroxy group which can undergo...

Q: Draw the Lewis structure for the sulfur dioxide (SO,) molecule. Be sure to include all resonance str...

A:

Q: Potential Series for Metals and Hydrogen. Reaction of Copper and Zinc

A: Copper + zinc nitrate -----> No reaction. Observations: No reaction. Net ionic equation : No reac...

Q: Find the ΔH of the following reaction:

A: Given reaction  12N2(g) + 12 O2(g)  → NO(g)     :   ∆H = 98.6 kJ     .............. reaction (1) NO(...

Q: (a) PLUTO a drain cleaner is solid sodium hydroxide that contains some aluminium chips. When PLUTO i...

A: Dear student, clogging may occur due to naturally occurring substances such as hair, oils, fat, grea...

Q: 2. The reaction between Mg ribbon and hydrochloric acid is: Mg(s) + Hel(aq)- MgCl, (aq) + H, (g) 4, ...

A: The reaction between the metal magnesium and hydrochloric acid  is exothermic, because it released e...

Q: A quantity of gas exerts a pressure of 98.6 kPa at a temperature of 22°C. If the volume remains unch...

A: According to the gay-lussac law:- the pressure of a given mass of a gas varies directly with the abs...

Q: When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic ...

A: Answer  = 3.50 grams 

Q: In each of the following cases give the name or structure of one compound which fits the information...

A: Answer to both the parts is given below. 

Q: A chemist designs a ses these two hait-reactions: half-reaction standard reduction potential 2+ Cu"(...

A: In electrochemical series ions are arranged with their increasing order of standard reduction potent...

Q: A. What is the pH of 8.3 × 10-³ M HC1? pH= B. What is the pH of 8 × 10–8 M HCI? pH=

A: Since HCl is strong acid so it completely dissociate and  pH = -log[H+]

Q: Which is incorrect regarding ligand-protein binding reactions? Select one: O If two ligands can bind...

A:

Q: A compound has an empirical formula of CH2. An independent analysis gave a value of 70 g/mol for its...

A: Empirical formula is defined as the simplest positive integer ratio of each atom that are supposed t...

Q: Solve plz thank you

A: Central sulfur is sp3 hybridized and terminal sulfur is sp2 hybridized. 

Q: Classify each of the events based on whether the solubility of the gas will increase, decrease, or s...

A: Gas solubility increases –  The partial pressure of an anesthetic gas is increased. O2 in the blood...

Q: Which of the following cannot be used as adsorbent in column chromatography?   a.   Silica gel...

A:

Q: 3. p-Nitrobenzyl alcohol is more acidic than benzyl alcohol but p- methoxybenzyl alcohol is less aci...

A: Acid: It is the ability of a compound to donate protons to other species. The structure of p-nitrobe...

Q: The equilibrium constant of a reaction triples on raising the temperature from 289°C to 371°C. Calcu...

A: According to Arrhenius equation- K =A e-Ea/RT on taking log and at different temperatures, constant(...

Q: Calculate the equilibrium constant for the following reactions at 298.15 K:   // CHECK PIC//

A: Equilibrium Constant k =  Concentration of products / Concentration of Reactants                    ...

Q: Nickel can be precipitated by the :following precipitating agent Tinchloride .a Sodium tetraphenylbo...

A: Nickel can be precipitated  by dimethylglyoxime (DMG)precipitating reagent .  So, DMG is used to sep...

Q: The ionic strength of an aqueous solution containing 0.0087 M NaCl and 0.0020 M La(103)3 is: O a. 0....

A: We will calculate Ionic strength

Q: Hydrolysis of a compound B(formula C7H6Cl2) was carried out by refluxing with excess potassium hydro...

A: Given: Hydrolysis of a compound B (formula C7H6Cl2) was carried out by refluxing with excess potassi...

Q: Calculate the molecular weight (molar mass) of a gas if 0.35 g of the gas at a temperature of 37.6 o...

A:

Q: Chemistry Question

A: r=k[A]1[B]1  

Q: If the specific heat of Copper is 0.385 J/g x ∘∘C how many J of heat are needed to raise the tempera...

A: Given : Specific heat of copper = 0.385 J.g-1°C-1  Mass of copper block = 200 g  Temperature = 55°C ...

Q: Explain the reaction between LIAI4H and H2C using the Lewis acid-base model (make drawings to show y...

A: ANSWER IS DISCUSSED BELOW 

Q: What is the solubility product constant for

A: We will calculate Ksp   

Q: The rate constant for a first-order reaction is 3.18 y-1 . If the initial concentration of the react...

A: Given: The rate constant for the reaction, (K)=3.18 y-1. The initial concentration, C0=0.54 M. The i...

Q: Enough of a monoprotic weak acid is dissolved in water to produce a 0.0176 M solution. The pH of the...

A:

Q: The equilbirium constant for the isomerization reaction = trans 2-butene at selected temperatures ar...

A: This can be solved using the Van 't Hoff equation.  The expression is, lnK2K1=∆HR(1T1-1T2) K1 is the...

Q: Determine the activation energy for this reaction in kJ/mol:  A chemical reaction has a rate constan...

A: Rate constant (K1) = 0.15 s-1  Rate constant (K2) = 1.35 s-1 Temperature (T1) = 22.0°C = 22.0+273 = ...

Q: What is the name of figure in the picture?

A: IUPAC name: 1-Ethoxy-2-methylpropane  

Q: How many moles of K3PO4 are present in 343 mL of a 1.27 M of solution?

A: We know ; # Molarity = mole of substance/volume of solution in L By using this realtion we can calcu...

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.