Would you expect that the amount of N2 to increase, decrease, or remain the same in a scuba diver’ s body as he or she descends below the water surface?Single choice.

Q: A Chemistry teacher is preparing solutions for a classroom activity. For the scenarios below,…

A: Here we have to predict whether the following dissolution of the ionic compounds in water are…

Q: When 1 kg of Pb (c = 0.13 J/g-°C) of initial temperature 100 °C was added to water (p = 1 g/mL, c =…

A: Specific heat capacity is defined as the amount of heat energy required to raise the temperature of…

Q: Sodium acetate dissolves readily in water according to the following equation. NaC2H3O2 (s) →>…

A: The heat of a reaction or enthalpy of a reaction is the enthalpy change, which takes place at…

Q: Now suppose 1 g stearic acid is added to 5 g of lauric acid. Predict the temperature at which this…

A: Given that No new substance is created and hence the melting point will be the same for the…

Q: How many calories of heat are needed to increase the temperature of 55 g of ethanol from 18 °C to 48…

A: Given,  55 g of ethanol from 18 °C to 48 °C

Q: A solution is made by mixing 285.0 mL285.0 mL of ethanol initially at 12.0 ∘C12.0 ∘C with 285.0…

A:

Q: What is the state of a system that has a system pressure of 500 mmHg and a dew pressure of 622 mmHg…

A: We can define the dew pressure as the pressure of the system where appearance of liquid occurs from…

Q: 1. KMnO4, OH- (warm) 2. H3O+

A: The given reaction is the oxidation of hexyne with Potassium permanganet to give pentanoic acid and…

Q: The boiling point of ethyl ether was measured to be 10 °C at a base camp on the slopes of Mount…

A: As we can see from Fig. 10.24, at 10.0 oC, ethyl ether, will have:  Vapor pressure = 40.0 kPa (…

Q: 2. A 230 ml ethyl alcohol was placed in a Pyrex glass and makes it full at 22°C. How much alcohol…

A: Given: Initial volume of ethyl alcohol = 230ml T1 = 22°C T2 = 100°C ΔT = (100-22)°C = 78°C

Q: kJ are required to melt a 27.2 g sample of solid chromium, Cr, at its normal melting point.

A: When the substance changes solid its state from solid state to liquid state is known as enthalpy of…

Q: Is there a relationship between the final mass of the marshmallow and an increase in temperature of…

A: The relationship between the mass of burnt marshmallow and the change in the temperature of the…

Q: Which is better for removing ice in sidewalks during winter: NaCl or CaCl2? with calculations.

A: Calcium Chloride (CaCl2) is always, definitely, best source is removing ice from sidewalks. We can…

Q: 7. Using specific heat as your justification, why is the poolside concrete hotter than the pool…

A: Cement may be a solid, comparatively dark (compared to polished metal), and a comparatively…

Q: energy is required

A:

Q: A solid is dissolved in a coffee cup calorimeter. Which of the observations suggest that the process…

A: The given process is endothermic as solid is dissolved in a coffee cup calorimeter.

Q: What is the value of 333 K in units of °C? O 631 O 167 O 60. O none of the above O 606

A:

Q: Copper (II) sulfate is a fungicide widely used in agriculture and gardening. In one of the…

A: Given: Compound is CuSO4.xH2O. And %(w/w) of water in compound = 36.40 %. Molar mass of H2O = Atomic…

Q: n enthalpy of the gas mixture pund your answer to 3 | kJ ? exothermic rmic or endothermic?…

A: We are given that Enthalpy of a mixture of a gases reactants Change in enthalpy==365KJ Where…

Q: The ionic salt KBr is dissolved in water, much like the experiments given in the simulation. A mass…

A:

Q: Use the information provided to determine ΔH°rxn for the following reaction:   ΔH°f (kJ/mol)…

A: According to Hess´s law for the reaction:

Q: 1. Which of the following accurately describes the conditions of an isolated system? a. Both energy…

A: The reaction is which heat is added is called as endothermic reaction.  The reaction in which heat…

Q: l in the blank with the correct terms. ne freezing of a substance is an process, and it is a change…

A:

Q: Calculate the quantity of heat (in calories) needed to change 50 g of 0 deg C ice into steam at 100…

A: It includes the scenario:-  50g ice at 0°C ----> 50 g water at 0°C ----> 50 g water at 100°C…

Q: The

A: ✓If we you both substance in solid phase then the reaction to be as least exothermic as explained…

Q: Which of the following suggests that the process of dissolving a solid sample in a constant-pressure…

A: Given: To explain how can we know that the dissolving of a solid sample in a constant-pressure…

Q: ** Of the following substance, only . Has London depression force HCI H2S CH3OH CH

A: We are given four molecules. 1) In HCl the bond is polar covalent bond. So the force are…

Q: 1. Which of the following accurately describes the conditions of an open system? a. Both energy and…

A: There are three types of systems  open system close system isolated system

Q: At which portion(s) on the graph below is the average kinetic energy of the water molecules…

A: from graph Avg Kinetic energy of the Water Molecules become constant on position g and k So option…

Q: The active ingredient in many commercial antifreezes is ethylene glycol (C2H6O2). If you wish to…

A:

Q: ou take a 70.654 g piece of irion at 150.0 degree celsius and drop it into 100.043g of water at 25.0…

A: Given: Mass of iron piece             = 70.654 g Temperature of iron piece = 150.0 oC Mass of water…

Q: Which of the following accurately describes the conditions of an isolated system? a. Both energy and…

A: Isolated system, as the name suggests, is something where no matter and no energy can be…

Q: how many calories are required to raise the temperature of 255g of water from 42c to 75c?

A:

Q: M9SO4 Mass of salt, g 15.0 Molar mass of salt, g/ 120.366 mol Moles of salt, mol 1.25x10^-1 Volume…

A: The data given is,

Q: 8) The freezing point of methane is -295°F and the boiling point is -263°F. The tem re of the…

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

Q: H2 (g) + Cl2 (g) – 2 HCI (g) Using the following information, calculate AHrxn for the reaction…

A: Consider the desired equation as: H2g+Cl2g→2 HClg Consider the given reactions as: NH3g+HClg→NH4Cls…

Q: An organic chemist measures the temperature T of a solution in a reaction flask. Here is the result.…

A: Given that, T = 56℃ Change into K.

Q: Calculation of AHf of Magnesium Oxide Mg + 2 HCI → MgCl2 * H2 AHi = kJ/mole MgCl2 + H20 Mgo + 2 HCI…

A:

Q: A solution is made by mixing 287.0 mL287.0 mL of ethanol initially at 13.1 ∘C13.1⁢ ∘C with 287.0…

A:

Q: At 100 ° C, 1 mol of liquid water takes 19400 calories and under one atmosphere pressure, the same…

A: Change in internal energy is zero if temperature is constant because, internal energy is a function…

Q: How much water at 0°C is added to 300 g of water at 100°C to make the temperature 60°C? а. 100 g b.…

A:

Q: Which statement describes the effect of adding more energy to a system, assuming a phase change does…

A:

Q: A generic solid, X, has a molar mass of 78.678.6 g/mol. In a constant‑pressure calorimeter, 30.730.7…

A: Answer: Heat absorbed by the solution can be calculated according to the formula shown below: Q=ms∆T…

Q: 2. Which of the following accurately describes the conditions of an open system? a. Both energy and…

A: Open System: The statement which describes the conditions of an open system. Is  a) Both energy and…

Q: A student is trying to freeze a solution of urea in the lab where the temperature is around 22°C.…

A: Depression in freezing point of solution = i ×Kf ×m Where Kf = molal freezing point depression…

Q: At what temperature does water freeze in kelvin? 100 K O 273 K O OK

A: Freezing Point of Water: The freezing point of any substance describes the point for the liquid to…

Q: A 20 g sample of ice at -10 °C is mixed with 100 g water at 80 °C. Calculate the final temperature…

A: Heat required by ice to convert into water at 0 oC = ms(Tf-Ti) + mLf…

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.