2. In boiling water, the bubbles contain: a. a mix of hydrogen gas and oxygen gas in a 2:1 ratio b. a mix of hydrogen gas and oxygen gas in a 1:2 ratio С. air d. water vapor 3. Justify your answer to #2.

Q: Calculate the amount of calories required to raise the temperature of 21.8 g of water from 8.5°C to…

A: Given,The mass of water =21.8 g.Initial temoerature of water = 8.5 oCFinal temperature of water =…

Q: A 277.7 gram sample of copper is initially at 26.5 °C, and it absorbs 17.22 kJ of heat from its…

A:

Q: I Review I Constants I Pe When a 0.600 g sample of olive oil is burned in a calorimeter, the heat…

A: The heat gained by 370 g of water equals the heat lost by 0.600 g sample of olive oil.

Q: In the laboratory a student finds that it takes 65.3 Joules to increase the temperature of 11.7…

A: We can determine the specific heat of metal from the given formula : q = m × C × (Tfinal - Tinitial)…

Q: What is the most common way that energy is exchanged with the environment during a chemical…

A: The amount of heat required or released in a process is known as the heat change of the process.…

Q: Assuming that the natural gas is pure methane, CH4, write a balance chemical equation for the…

A: Given Reaction of methane with black copper oxide and red copper oxide to form copper metal , water…

Q: s0000 600 700

A: If we increase the kinetic energy of water molecules (usually done by heating them) then the…

Q: You are performing an experiment where you place 6.4673 g of Al metal at 209.82 C into a coffee cup…

A: Given, mass of Al metal =6.4673 g at 209.82 °CA coffee cup calorimeter that contains 87 g of water…

Q: The specific heat of a certain type of cooking oil is 1.75 cal/(g ·°C). How much heat energy is…

A: To raise the temperature by 1∘ Celsius of a particular substance then for this a certain amount of…

Q: An unknown substance weighs 450.0 grams and had a temperature change from 130 degrees celsius to 80…

A: The mass of the solid substance is m = 450.0 g. The initial temperature is Ti = 130oC. The final…

Q: 1.) In the laboratory a student finds that it takes 4.75 calories to increase the temperature of…

A: 1) Given: Mass of lead = 10.4 g. Amount of heat added = 4.75 calories. The initial temperature of…

Q: You set up a simple distillation apparatus to distill 200 mL of sugar aqueous solution containing 20…

A: The objective of the question is to determine the boiling temperature of a sugar-aqueous solution…

Q: In an experiment aqueous solutions of calcium chloride and sodium sulfate are mixed. What type of…

A: Aqueous solutions of calcium chloride and sodium sulfate are mixed.

Q: A coal-burning power plant generates electrical power at a rate of 950 megawatts (MW), or 9.50 x 108…

A: The power is defined as the amount of energy transferred per unit time.

Q: Write a balanced equation for the combustion of gaseous methane (CH,), a majority component of…

A: A chemical equation is the simplest and easiest way to write the chemical formula of each of the…

Q: J cal kJ 688 199 0.585

A: 1 cal = 4.184 J  1kJ = 1000 J

Q: A 489.9 gram sample of aluminum is initially at 25.7 C. It absorbs 38.27 kJ of heat from its…

A:

Q: A sheet of gold weighing 9.4 g and at a temperature of 19.1 °C is placed flat on a sheet of iron…

A: Given Mass of gold = 9.4 g Temperature of gold = 19.1•C Mass of iron = 18.4 g Temperature of iron =…

Q: why are elements and compounds both pure substances?

A: The formation of compounds due to a combination of elements is governed using certain laws. These…

Q: What is the difference between a physical and chemical change? Give at least three signs of a…

A: Difference  between  chemical  change  and  physical  change.  Physical change is a type of change…

Q: How much heat, in Joules, is absorbed by 54 g of water in order to increase in temperature from 18°C…

A: Given that:  Mass of water = 54 g Increase in temperature , t =  (55-18 )oC = 37 oC

Q: Carbon disulfide burns in air, producing carbon dioxide and sulfur dioxide. CS2 (l) + 3 O2 (g) → CO2…

A:

Q: 227.9 Joules of heat are added to 25.96 grams of a liquid, raising the temperature of the liquid…

A: Heat added= Cp*m*∆T  Cp specific heat capacity  m is mass  ∆T change in temperature

Q: A 325.7 gram sample of copper is initially at 20.8 °C, and it abs (specific heat = 0.387 Jg¹ °C-1…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…

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.