What is the percent by mass concentration of NaCl in a solution that is prepared by adding 15.0 g of NaCl to 90.0g of water?

Q: Part A Consider benzene in the gas phase, CHs(9). What is the standard enthalpy change for the…

A: Given that , Benzene is in gaseous phase.

Q: Suppose a 500. mL flask is filled with 1.2 mol of NO3 and 0.50 mol of NO. The following reaction…

A: Answer: Value of equilibrium constant is equal to the ratio of molar concentration of products and…

Q: g. Chromous hypochlorite h. Strontium phosphate i. sodium sulfate

A: Since you have posted a question with multiple subparts, we can answer only first three subparts.…

Q: You need to prepare 363 mL of a 8.00 × 10-2 M CaNO3 solution from a 12.00 M stock solution. How much…

A: The given problem can be solved by using the formula given below as; M1 V1 = M2 V2…

Q: (y) Which of the drawings above best represents the ions in a solution of Fe(NO3)3(aq)? Example:…

A: In a chemical reaction, when the compound in the aqueous phase breaks down into two or more simpler…

Q: e pressure

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

Q: 8. Identify each chemical reaction by type and complete the given chemical equation. Don't forget to…

A: Hello. Since the question contains multiple subparts the first three subparts are solved. In case…

Q: 6. Effect of a common ion on solubility. If 20.0 mL of 0.10 M Ba(NO3)2 are added to 50 mL of 0.10 M…

A:

Q: How many H atoms are in one formula unit of (NH.)2SO.? 4 2 4

A: a) The formula of the compound given is (NH4)2SO4. And number of formula units of (NH4)2SO4 = 1

Q: In chemical reactions, heat is converted into chemical energy (the potential energy stored in…

A: The bond energy for the formation of a molecule is calculated by subtracting the energy of bonds…

Q: Part A Write equations for the half-reactions that occur at the anode and cathode for the NaBr (aq)…

A: Answer: These are the reactions involved with electrolysis process of given substances where at…

Q: 1) Determine the moles of KMnO4 required for each trial. 41.43 mL 0.45 mL = 40.98 mL of KMnO4 moles…

A: Given that, Molarity of KMnO4 solution is 0.1 M. For trial 1: Initial burette reading = 0.45 mL…

Q: Part A In chemical reactions, heat is converted into chemical energy (the potential energy stored in…

A:

Q: Hey! Could you check these answers to make sure they are all correct? If they aren't, could you…

A: Hello. Since more than one question has been asked, the first question shall only be answered in…

Q: thc +/- √b²-4ac 2a 4. 0.275 M CH3COOH; Ka = 1.8 x 10-5 Equation: EXPERIMENT 15 ACIDS AND BASES: pH,…

A: [H+] can be calculated from the ICE chart for the dissociation of CH3COOH and Ka expression.  From…

Q: 2) Balance and write net ionic chemical equations for each of the following reactions. H3PO4(aq) +3…

A: To balance a reaction, we need to count each atoms and make them equal in both reactant side and…

Q: 2. FOI thIe TeactioN beluw, 0.40 M OfA was miXed What are the equilibrium concentrations of all В…

A:

Q: Help! I have no clue how to solve this problem!!

A:

Q: My professor didn’t go over any problems like this so I need someone to explain how I would solve…

A: Given that the solution contains 258 g MgCl2/lit. We have to calculate the molarity of the solution.…

Q: 2. What is the mass of the air contained in a room 6m X 5m x 4m if the pressure is 100 kPa and the…

A:

Q: The (-) enantiomer of a compound has a specific rotation of [a] = 123°. What rotation, a, will be…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Please solution to questions 3&4

A: Answer 3 :-  B option is correct. 2 NaCl Answer 4 :- C option is correct.  0.201g of Hydrogen

Q: 2) Calculate the concentrations of the FeSCN²" solutions you prepared in Part 1 and, using these…

A: #2: Calculation for [FeSCN2+(aq)] of the solutions in part-1: In part-1, we have taken a very small…

Q: .125 kJ of energy is added to a system while 104 kJ of work is done by the system. Calculate the…

A: The change in internal energy,ΔU is =  ΔU = q + w q = heat added/removed from the system w = work…

Q: Consider the reactions 3C(graphite) + 4H2(g) → C3H8(g) AH = -103.8 kJ %3D C(graphite) + O2(g) →…

A: The given thermochemical equations are: 3C(graphite) + 4H2(g)  ----> C3H8(g) ; ∆H = - 103.8 kJ…

Q: In chemical reactions, heat is converted into chemical energy (the potential energy stored in…

A:

Q: (N-m propy Alkyi (5) Prepare (Bromo butane) from suitable ether.

A: The compound formed as a result of oxidation of 1-butyl-2-ethyl-3-methyl benzene by alkaline KMnO4…

Q: In an acid-base neutralization reaction, 28.74 mL of 0.500 M potassium hydroxide reacts with 50.00…

A: Given: The volume of potassium hydroxide used = 28.74 mL The concentration of the potassium…

Q: 2. Nitrogen gas reacts with hydrogen gas to produce ammonia, as shown in the following equation: +…

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

Q: LAFbon dioride gas = 0.10 mol/L 3.4x10-2moVL atm pcog- pressure of Carbon diaride=? [Book problem…

A: 7) According to Henry’s law, the concentration of the gas in the solution is directly proportional…

Q: 2. Calculate AE for each of the following cases: a. q=-47 kJ; w=+88 kJ %3D b. q=+82 kJ; w =+47 kJ c.…

A: a) q = -47 kJ ; w = +88 kJ  b) q = +82 kJ ; w = +47 kJ  c) q = +47 kJ ; w = 0 kJ  We know that,  ∆E…

Q: can you help me solve this

A: In this question, we want to determine the value of ∆G° for CH3CO2H  How we can determine, the value…

Q: Consider the titration of 40.0 mL of 0.0600 M (CH),NH (a weak base; K-0.000540) with 0.100M HIO4.…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: What is the correct relative configuration for each of the following monosaccharides? H Сно сно но-…

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

Q: If someone could answer the rest of them this was super helpful I just need to finish this packet by…

A: Element is identified from number of protons . As number of protons = Atomic number.  Charge is…

Q: An unknown liquid was found in a science room and was analyzed by some Chemistry 20 students. To…

A: The solution is given below -

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.