9. The temperature is a critical variable that needs to be recorded when calibrating glassware. Which of the following statements is NOT true? O the volume water occupies increases with increasing temperature the density of water decreases with increasing temperature the volume of glassware increases with increasing temperature due to its thermal coefficient of expansion laboratory glassware contracts 0.0010% per °C as the temperature increases near room temperature

Q: If 11.96 kJ of heat is given off when 41.9 g of unknown acid condenses from vapor to liquid, what is…

A: Given data : 11.96KJ  Given mass of unknown acid-41.9g Molar mass of unknown mass 49.15g/mol

Q: How do I calculate the final temperature of a mixture? Mass of empty cup and lid: 9.94 g  Mass of…

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Q: A sample of iron was heated to 125.0 oC and then placed in 375 g of water at 21.0 oC. The…

A: Given that, Temperature of iron sample Tiron =125.00C , mass of iron = m (supposed) Mass of water =…

Q: The specific heat capacities of copper, gold, and cobalt are given. Based on this information, which…

A: Specific heat capacity means the amount of heat required to raise the temperature of 1 gram of a…

Q: Most people find waterbeds uncomfortable unless the water temperature is maintained at about 85 °F.…

A: We assume that the density of water is 1.0 g/cm3(1 g/mL) We also assume that only the water is going…

Q: The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7 kJ/mol.…

A: Given,  The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7…

Q: The specific heat of nickel is 0.444 J/g 0C. If 50 J of heat is added to 32.3 g sample of nickel at…

A:

Q: Ryan is a chemistry student that enjoys hot tea. He wants to determine how much ice is needed to…

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

Q: 50g sample of an unknown metal is heated with 800 joules. If the temperature of the metal increases…

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Q: Suppose 50.0 g of solid bromine at its melting point of -7.2oC is heated, eventually producing…

A: We need to find which of the given steps will need maximum heat energy

Q: Which

A: Endothermic reaction in which heat is given

Q: During a recent winter month in Sheboygan, Wisconsin, it was necessary to obtain 3500 kWh of heat…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A 29.8 g sample of water at 4.7 C is mixed with 52.5 g of water at 74.8 C. Calculate the final…

A: Given data,Mass of water(1)=29.8gTemperature(T1)=4.7oCMass of…

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: Determine the final temperature of a 32.3 mL salt solution initially at 21.05ºC when 1.93 kJ of heat…

A: Volume of solution(V) = 32.3 mL Density of solution(d) = 1.235 g/mL Mass = V × d   = 32.3 × 1.235 =…

Q: Fill in the blank by the name of the definition: Heat of __________ is the quantity of heat…

A: Heat : Heat is the mode of transfer of energy from one system to another. It is due to the…

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A:

Q: The specific heat of aluminum is 0.214 cal/g·oC. Determine the energy, in calories, necessary to…

A: The specific heat of aluminium is = 0.214 cal/(g·oC) The mass of aluminium is = 55.5 g The increase…

Q: A solution is made by mixing 197.3 g of ethanol initially at 10.5°C with 250.0 g of water initially…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: A 11.2-g copper block, initially at 75.0 °C, is dropped into a Thermos flask containing 26.6 g of…

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Q: Calculate the amount of heat needed to raise the temperature of 55g of liquid water from 25 degrees…

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Q: A 67.1 g block of iron at 22.4°C is packed in dry ice where it eventually reaches the temperature of…

A: Heat in kilojoules can be calculated using the specific heat capacity, temperature difference and…

Q: heat of combustion

A:

Q: A 295-g aluminum engine part at an initial temperature of 13.0 °C absorbs 75.0 kJ of heat. What is…

A: Please find your solution below :

Q: If you have 0.381 m30.381 m3 of water at 25.0 ∘C25.0 ∘C in an insulated container and add 0.107…

A: Use principle of calorimetry  Heat flow from high temperature to low temperature  Q= mC∆T

Q: A 15.5g piece of chromium is initially heated to 100.0 degrees C and then dropped into a beaker…

A: The mass of chromium metal piece is = 15.5 g The temperature of the chromium piece is = 100oC =…

Q: What is the final temperature if 305 J of heat is added to 58.2 g of this metal

A: q = mc∆T  q is the amount of heat energy absorbed m is the mass of substance  c is the specific heat…

Q: A sample of gaseous oxygen is heated with an electrical coil. If 148 Joules of energy are added

A: Added energy       Q = m × S × ∆T  Where       Q = 148 J (energy added to oxygen)       m = mass of…

Q: You pour a cup of tea that has a volume of 128 mL and is initially 92.1 °C. You place a stainless…

A: Mass of coffee = Density of coffee × Volume of coffee. Mass of coffee = 128 g (density of coffee =…

Q: If chart B represents the cooling of a 14.0 g of a substance at a constant rate, determine the…

A: Specific heat capacity of substance is  defined as the heat capacity of  sample of the substance is…

Q: A 25.0 g block of Al with specific heat 0.897 is placed into 100.0 g of water at 30.0°C. The final…

A: The heat lost by the hot body is equal to the heat gained by the cold body.

Q: The specific heat of a certain type of metal is 0.128 J/(g⋅∘C).0.128 J/(g⋅∘C). What is the final…

A:

Q: If you have 29.8 grams of calcium at 52.0ﹾC that is heated to a temperature of 105ﹾC.    How much…

A:

Q: A 25.0 mL sample of ethanol (density=0.789 g/mL) initially at 7.0 Celsius is mixed with 35.0 mL of…

A: Volume of ethanol = 25.0 mL Density of ethanol = 0.789 g/mL So, mass of ethanol = volume * density =…

Q: Calculate the specific heat of a solid, if 55g of the solid at 99 degrees celcius raises the…

A: Given: The mass of a solid substance is 55 g. The initial temperature of solid substance is 99°C.…

Q: A piece of iron (specific heat, 0.444 J/g•°C) is added to 127.31 grams of water (specific heat,…

A:

Q: If 10.72 kJ of heat is given off when 57.04 g of unknown acid condenses from vapor to liquid, what…

A:

Q: Express in four decimal places. Express the quantity in the unit indicated and designate whether…

A: The heat (q) lost or gain can be calculated by the multiplication of mass (m), specific heat (c),…

Q: 1. How much heat is lost when a 4110 g metal bar with a specific heat of 0.231 J/g°C cools from…

A:

Q: A 7.50-g piece of iron at 100.0°C is dropped into 25.0 g of water at 22.0°C. Assuming that the heat…

A:

Q: Express the quantity in the unit indicated and designate whether this heat is gained or lost by the…

A: Given data:  Mass of water = 162.5 g The initial temperature of water = 45.84 °C The final…

Q: How many grams of an unknown substance, having a specific heat of 1.66 J g ° C, are present if a…

A: Specific heat, c=1.66 J g ° C Temperature change, ∆T=-173.4 K =-173.4 ° C (The difference in…

Q: How much heat is required to raise the temp. of 10.58 g sample of iron from 25.0 degrees C to 79.8…

A: Given, mass of iron sample m = 10.58 g  specific heat of iron C = 0.450 Jg°C  Initial temp. T1 =…

Q: Carbon disulfide burns in air, producing carbon dioxide and sulfur dioxide. CS2 (1) +302(9) CO2 (9)…

A:

Q: When a 6.50 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup…

A: The formula used to calculate heat: m is the mass. Cp is the heat capacity. T2 and T1 are the…

Q: Calculate H0rxn for each of the following using data from Appendix B. (a) 2 H2S(g) + 3 O2(g) 2…

A: