The freezing point of a solution that contains 1.00 g of an unknown compound, dissolved in 10.0 g of benzene is found to be 2.07°C. The freezing point of pure benzene is 5.48 °C. The molal freezing point depression constant of benzene is 5.12°C /m. What is the molecular weight of the unknown compound?

Q: 39. What is the true volume of water delivered in A? A) 10.00 B) 10.02 C) 10.04 D) 10.06 E) 10.08

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Q: Calculate the amount of heat needed to boil 189. g of ethanol (CH3CH₂OH), beginning from a…

A: Given data ,                                                           m = mass of methanol =  189.0…

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A: Unit of energy in metric system is to be accomplished.

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A:

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Q: Convert -25oC to kelvins.

A: Convert -25oC to kelvins.

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A:

Q: 750 mK/s to K/s?

A: Step 1mk/s means “millikelvin per sec” and K/s means ‘Kelvin per sec”Here, conversion of mk/s to K/s…

Q: Suppose

A:

Q: Convert 15 ns to ms

A:

Q: Calculate the amount of heat needed to boil 48.6 g of water (H₂O), beginning from a temperature of…

A: Given that,  The mass of water is m = 48.6 g. The initial temperature of the water is T1 = 55.2°C.…

Q: 1. For the reaction below: a. b. Predict the products and show the mechanism using curved arrows.…

A: To predict the products and show mechanism using curved arrows.

Q: Find what heat in calories (cal) is required to change 42 gg of 100∘C∘C boiling water into steam.…

A: Information of question

Q: What is the molarity of a solution formed by dissolving 39.7 g Iron (III) permanganate in water to…

A: Interpretation: The molarity of a solution formed by dissolving 39.7 g Iron (III) permanganate in…

Q: Convert 120 mg/dL of glucose to Sl unit (mmol/L). MW of glucose = 180.0

A: Following unit conversion is given below.

Q: ? + NC CN Heat -CN CN

A: Diels–Alder reaction is a chemical reaction between a conjugated diene and a substituted alkene,…

Q: Calculate the kinetic energy of a 0.16kg baseball moving at a speed of 33.0ms.

A: Given :-  mass of baseball = 0.16 kg  speed of baseball = 33.0 m/s  To calculate :-  Kinetic energy…

Q: dimensional analysis: 2feet 9inches to meters

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Q: The temperature at which a fuel begins to burn is called the ignitiontemperature. The ignition…

A: Temperature can be expressed in different scales, such as, Kelvin, °C and °F etc.  These units can…

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A: Amount of heat needed in a process can be calculated by the formula q = m*C*∆T  Where m is the mass…

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Q: - The prefix giga is used in the metric system has a value of 1016 A 1019 10+12

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Q: Calculate the pOH of water at 50.0°C. At this temperature, Kw = 5.48E-14. POH

A:

Q: Calculate the amount of heat, in J, required to warm 224 g of sand from 25.0 ºC to 284 ºC.  The…

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Q: Carbon monoxide (CO) with the following properties occupies a volume. Determine the volume, in ft'.…

A: Given that: Temperature = 400°R = 222.22 K Pressure = 4000 lb/in2 = 272.184 atm Mass = 120 lb =…

Q: Convert 300.0 K to:a. 8C b. 8F

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A:

Q: Convert 190K to F.

A: Relation between K and F: (°F − 32) × 5/9 + 273.15 = K

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A:

Q: X (1)→X (g) AH = 42.8 kJ/mol and AS° = 110.9 J/mol K Calculate the boiling point temperature of X in…

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Q: Convert 75°F to K

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Q: 10 lbm to in3 cm3

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Q: 20g H2O to molecules= round answer to 2 decimal places

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Q: According to the metric system, 1Gg= g

A: 1Gg is equal to how many gram ?

Q: Match the name to the organic compound

A: We can determine the name of the compounds by knowing the functional group present in them.

Q: Convert 252 K to °C.

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Q: Calculate the amount of heat needed to boil 139. g of water (H₂O), beginning from a temperature of…

A: Given mass of water, m = 139 gThe energy required in each process which will take place during the…

Q: Convert 38\ deg Convert K.

A: The objective of this question is to convert a temperature given in degrees Celsius to Kelvin. The…

Q: kilocalories to condense 3.5 kg of steam

A: Given : Mass of steam to be condensed = 3.5 Kg = 3500                           (since 1 Kg = 1000…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.