A chemist adds 160.0 mL of a 2.8 mol/L sodium chloride (Nacl solution to a reaction flask, Calculate the millimoles of sodium chloride the chemist has add to the flask. Round your answer to 2 significant digits.

Q: Explain why a solution has a higher boiling point than that of the pure solvent. Differentiate molal...

A:

Q: A 0.658 g sample of a diprotic acid is dissolved in water and titrated with 0.130 M NaOH. What is th...

A: First find number of moles of NaOH. Then with the help of balanced equation find the number of moles...

Q: Calculate the volume in milliliters of a 0.76 mol/L aluminum chloride solution that contains 300. mm...

A:

Q: Calculate the volume in milliliters of a 5.3 mol/L silver nitrate solution that contains 200. g of s...

A: To solve this problem first we will calculate the mole of silver nitrate then volume of solution wil...

Q: It is determined that a particular chemical reaction has AH° = 42.2 kJ mol 1 and Aso, |-1 = 124.5 JK...

A:

Q: Part A MISSED THIS? Read Section 6,9 (Pages 245 - 246) ; Watch IWE 6.15. A sample of N20 effuses fro...

A: Time of effusion for N2O = 50 s  

Q: Br er

A: The number of  chiral center = 2  Number of stereoisomer = 2^2 = 4  

Q: Calculate the volume of liquid in the round flask sketched below. Give your answer in milliliters, a...

A:

Q: Propylamıne, Cs H, NH2, is a weak base. A 0.87 M aqueous solution of propylamine has a pH of 12.20. ...

A: a) Given, Propylamine (C3H7NH2) is a weak base. Concentration of Propylamine solution (C) = 0.87 M p...

Q: . What is reactant selectivity in zeolite catalysis?

A: What is reactant selectivity in zeolite catalysis?

Q: The labels came off four cleaning solution containers found under a k ink. Each of the cleaning solu...

A:

Q: A generic salt, AB,, has a molar mass of 165 g/mol and a solubility of 6.30 g/L at 25 °C. What is th...

A: Given, solubility = 6.30 g/L Molar mass of AB3 = 165 g/mol

Q: If red and green solutions were mixed would you expect an orange color result?

A: Red solution + green solution = yellow solution We would not expect an orange color result. 

Q: conjugate acid conjugate base

A:

Q: Which of the following statement is CORRECT? O At equilibrium, the concentration of reactant and pro...

A: The correct statement is given below

Q: Which of the selections below correctly describes the bond angle and hybridization for the carbon, h...

A: Given that: methanal  It is also called as formaldehyde. Structure :

Q: Does a reaction occur when aqueous solutions of barium chloride and potassium phosphate are combined...

A:

Q: What is the pOH of a 0.084 M HNO3 solution.

A: Concentration of HNO3 is 0.084 M  HNO3 ⇌ H+ + NO3-  So, 1 HNO3 will give 1 H+   

Q: Part A A weather balloon is inflated to a volume of 25.5 L at a pressure of 738 mmHg and a temperatu...

A:

Q: conjugate acid conjugate base

A:

Q: b. . According to the Arrhenius Theory, the ion that is produced in theg HCl is dissolves in distill...

A:

Q: Consider the reaction: Cacog(s) = Caols) + CO2(g) Determine the Kp of the equilibrium if the partial...

A: Chemical equilibrium is defined as the stage at which both reactant and product are in equilibrium.

Q: 2. The following statements about anthracene are true EXCEPT: OBJ а. It gives a negative result in B...

A:

Q: Which of the following solutions when mixed will form a precipitate? 125 mL of 0.125 M NaOH aqueous ...

A:

Q: Use the standard reduction potentials at 25° C in Table 18.1 in Tro, Fridgen and Shaw, and calculate...

A:

Q: What is Natural Isolates * Explain * The process  * Example:

A: A natural isolate is naturally occurring chemical (single chemical) that is usually "isolated" from ...

Q: Calculate the pH of a 0.13 M solution of propanoic acid. K, of propanoic acid is 1.3 x 10-5.

A: pH is defined as negative logarithm of hydrogen ion concentration.

Q: Calculate potentials after the addition of 10.00, 25.00, 50.00, and 50.10 mL of the reagent. Where ...

A: Given: 50.00 mL of 0.1000 M [Fe(CN)6]4- with 0.05000 M Tl3+ To Calculate: Potential after the additi...

Q: Using the data in the table, determine the rate constant of the Trial [A] (M) [B] (M) Rate (M/s) rea...

A: Unit of rate constant of second order reaction is M-1 S-1 

Q: You are trying to make a 6mL solution with a agar concentration of 0.2mg/ml. The stock solution is 5...

A: M1V1=M2V2 is the dilution formula where M1, V1, M2 and V2 are concentration of stock solution, volum...

Q: Use the References t The pH of an aqueous solution of 0.177 M sodium fluoride, NaF (aq), is This sol...

A:

Q: 2. Write balanced net ionic equations describing each of the following reactions: Precipitation of t...

A: 1. Precipitation of tin(IV) sulfide with H2S Sn4+ (aq) + 2 H2S  (aq) → SnS2 (s) +  2H+ (aq) Here SnS...

Q: Name the alkene. CH2 H2 C. CH3 H3C H2 name:

A: To solve this problem we have to write the name of the given alkene .

Q: CH3COOH II IV O II OIV Ov

A:

Q: 3. Which of the following reaction would produce the given product in good yield? No explanation is ...

A: The aldol reaction takes place at room temperature. On heating the same solution a condensation prod...

Q: general molecular formula for an alkane,

A:

Q: Which of the following could be a pH of NaOH? a. 9 С. 7 b. 1 d. 6 Which compounds are Arrhenius acid...

A: pH = -log[H+]  [H+] = 10-pH  pH + pOH = 14.0   

Q: Determine the relation between the pH values of the two solutions. Select the correct choice below a...

A: pH = -log [H+]  

Q: A solution of HA, a weak acid (K = 0.0040), is prepared with a concentration of 0.579 M. Determine t...

A: Given Data :  1. Ka =0.0040  2. Concentration of HA = 0.579 M   

Q: Reagent Concentration (Molecular weight) Amount Needed Bicine 5.00 mM (163.17) NaCI 500.0 mM (58.44)...

A: Amount needed calculated by the concentration

Q: 1) For the following transformations involving one elementary step each: (i) Draw &+ and 8- on the a...

A:

Q: Children's toys and jewelry were assessed for their contamination by potentially toxic elements (PTE...

A: Hii there, As there are multiple sub parts posted. we are answering first-three sub parts . If you n...

Q: Tertiary alcohols can not be oxidized.   Question 14 options:   True   False

A: 1° alcohol oxidize to aldehyde or carboxylic acid. 2° alcohol oxidize to ketone. 3° alcohol generall...

Q: [H30)=|

A:

Q: Complete the following table, which lists information about the measured acid dissociation constants...

A: Values of ka and pKa can be calculated from given one of the value using the relation between them  ...

Q: In Fehling's reaction aldehyde group of carbohydrate is: a)Product b)Ensuring environment c)Reduc...

A:

Q: A 0.434 g sample of a monoprotic acid is dissolved in water and titrated with 0.170 M KOH. What is t...

A: Number of mole of NaOH used will be equal to moles of monoprotic acid being neutralised

Q: What is the K, reaction of HCN? K, reaction: The K, of HCN is 6.2 x 10-10. What is the K, value for ...

A:

Q: What is the pH of a 0.40 M ammonia solution? Ka is 5.6 X 10-10 11.43 O 2.57 O 9.18 O 4.82

A: Ka = 5.6 x 10 —10  

Q: emist prepares a solution of calcium sulfate (CaSO,) by measuring out 0.482 umol of calcium sulfate ...

A: Moles of calcium sulphate=0.482×10^-6mol Volume=250 mL= 0.25 L  Concentration of calcium sulphate=? ...

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.