(a) A sample of tetrachloroethylene, a liquid used in dry cleaningthat is being phased out because of its potential to cause cancer,has a mass of 40.55 g and a volume of 25.0 mL at 25 °C. Whatis its density at this temperature? Will tetrachloroethylene floaton water? (Materials that are less dense than water will float.)(b) Carbon dioxide (CO2) is a gas at room temperature andpressure. However, carbon dioxide can be put under pressure tobecome a “supercritical fluid” that is a much safer dry-cleaningagent than tetrachloroethylene. At a certain pressure, the densityof supercritical CO2 is 0.469 g/cm3. What is the mass of a25.0-mL sample of supercritical CO2 at this pressure?

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A: Density  direct  proportional  to molar mass at given conditions.

Q: A 357.0 mL sample of carbon dioxide was heated to 393 K. If the volume of the carbon dioxide sample…

A:

Q: Mg(OH)p(s) → Mg0(s) + H;O(1) Express your answer in kilojoules to one decimal place. kJ

A: Given:

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A: Money spend in one week can be calculated from the cost of one day.

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A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

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Q: A sample of carbon monoxide initially at 25.0 °C was heated to 50.0 °C. If the volume of the carbon…

A: Charles law says that at constant pressure, volume is directly proportional to the temperature. We…

Q: А) 280 K B) The freezing point of water c) 5°C D The freezing point of water and 280 K (E) 30 °F

A:

Q: A gas sample has a volume of 881 mL at 45.6 °C.  What was the temperature (in °C) when the volume of…

A: Given, Note: 1000 mL = 1 L Initially, Volume of the gas sample (V1) = 881 mL = 0.881 L Temperature…

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A: To calculate the volume of air in the bottle when it's cooled to -196°C, we need to use the ideal…

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Q: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by…

A:

Q: Vitamin C has the formula C6H8O6.  Calculate the number of Vitamin C molecule in a 0.250g table of…

A: 1 mole of a substance contains Avogadro's number.

Q: Select true or false for the following statements. __Vaporization is when a substance goes from…

A: We have to discuss the statements based on phase change and energy involved in the process.

Q: The radius of an argon atom is 94 pm. Assuming theatom is spherical, what is the volume of an argon…

A: Given: Radius of Argon, r=94pm                             =94 x 10-12m…

Q: A sample of oxygen gas initially at 315 K was heated to 369 K. If the volume of the oxygen gas…

A:

Q: A sample of Nitrogen gas occupies a volume of 26.2 ml at 87.4°C. What temperature in °C will it need…

A:

Q: 5. What is the value of x? Methane (CH4) at 57°C and 702 mmHg has a density x g/L.

A:

Q: How many grams of water can be heated from 25.0 °C to 80.0°C using 12500.0 Joules?

A: The heat required to raise the temperature of a substance can be expressed as :

Q: earth's ocean contain approximately 1.36x10(9)km(3) of water. calculate the volume in megaliters\

A: Given information, Volume of water = 1.36x109 km3

Q: 2 NO(g) + Br₂(g) → 2 NOBr(g); AH = -18.2 kJ COLUMN A Kp at 25°C COLUMN B Kp at 50°C

A: Using integrated van't Hoff equation, Kp can be determined at different temperatures.

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A:

Q: The density of a solid with melting point of 42 to 44 degree Celsius was determined to be…

A: Given that the compound is a solid. Melting point = 42°C to 44°C Density = 0.87 ± 0.02 g/mL

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: -> 1 KJ = 1000 J  -> 1 mole = 1000mmole

Q: At constant pressure and temperature, 2.05 g of oxygen gas O2 is added to a 1.00 L balloon…

A: From the ideal gas equation:PV = nRT, Where, P is the pressure if the gas, V is the volume if the…

Q: A sample of tetrachloroethylene, a liquid used in dry cleaning that is being phased out because of…

A: Given:Mass of tetrachloroethylene=40.55 gVolume of tetrachloroethylene=25.0 mLTemperature=25oC

Q: Just a short summary for me to understand. Explain the difference in properties between solids,…

A:

Q: The liquid 1,2-dibromobenzene has a density of 1.98 g/mL at 20 °C. If a 2.61 kilogram sample of this…

A: In the given question ->Density(d) = 1.98 g/mlWeight of sample = 2.61 kg = 2.61 × 1000 gm = 2610…

Q: When a 4.00-g metal piece,A, was immersed in 24.0mL of water the water level rose to 52.0mL.…

A: Mass of a metal piece A = 4.00 g  Initially volume of water of A = 24.0 ml  Finally volume of water…

Q: Aling Puring has a sari-sari store and one of her bestselling products is “yelo” or iced water in a…

A: Her observations are valid because refrigerator takes less time to form yelo during rainy seasons.

Q: The dipole moment (μ�) of HBrHBr (a polar covalent molecule) is 0.831D0.831D (debye), and its…

A: This question is based upon chemical Bonding.

Q: (a) The distillation stops at one point, and the temperature drops. (b) The material in the…

A: Distillation is a process of separating mixture of liquids depending up on their different boiling…

Q: The density of benzene at 15 °C is 0.8787 g>mL. Calculatethe mass of 0.1500 L of benzene at this…

A: density= mass /volume We have density =0.8787g/ml Volume given =0.1500L We have to convert it into…

Q: The liquid 3-chloro-1,1,1-trifluoropropane has a density of 1.33 g/mL at 20 °C. If a 2.12 kilogram…

A: Given:Density of liquid = 1.33 g/mL = 1330 g /L.Mass of liquid = 2.12 Kg = 2120 g.

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.