Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 *10² kg/m³. In a certain experiment, from the reaction of 2.91 mL of methanol with 2.88 g of oxygen, 2.27 g of carbon dioxide was obtained. What type(s) of chemical reaction is (are) occurring in this experiment? What equipment do you think was used to measure the volume of methanol in this experiment? Calculate the percent yield of the carbon dioxide in this experiment. (a) (b) (c)

Q: A cube of an unknown metal measures 0.250 cm on one side. The mass of the cube is 0.095 g. Which of…

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Q: Given that 6.02 x 1023 ethanol molecules have a mass of 46.04 g, calculate the number of ethanol…

A: At first, we calculate the volume of the film of ethanol, which is----- 3.08 mm = 0.308 cm 10 cm =…

Q: A cylindrical glass tube 12.7 cm in length is filled withmercury (density = 13.6 g/mL). The mass of…

A: Given, Length of cylindrical tube = 12.7 cm Density of mercury = 13.6 g/mL mass of mercury = 105.5 g…

Q: An empty Erlenmeyer flask weighs 241.3 g. When filled with water (d 5 1.00 g/cm3), the flask and its…

A: Given: Mass of the empty Erlenmeyer flask= 241.3g Density of water = 1.00 g/cm3 Mass of flask filled…

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

A:

Q: The length of a 262 mm line can also be expressed as: (choose one of the choices) Hint: you must…

A: Given 262 mm  Check each unit one by one in options.

Q: What is the volume of a sample of mercury (d = 13.6 g/ml) which weighs 1000. g?

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Q: In an experiment, 125 cm3 of zinc and 125 cm3 ofiodine are mixed together and the iodine is…

A: Given data Volume of Zinc = 125 cm3  Volume of iodine = 125 cm3  density of Zinc = 7.13 g/cm3…

Q: As an instructor is preparing for an experiment, he requires 225 g phosphoric acid. The only…

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Q: 2.At 25° C, the density of water is 0.997 g/ml. At -10° C, the density of ice is 0.917 g/cm3. If a…

A: Water at 25o present at liquid state and its freezing point is 0oc, So, below 0oc it will show solid…

Q: A length of 155 nm can also be expressed as 1.55 x 104 pm 155000 pm O 0.155 pm 1.55 x 10-6 pm

A: 1 nm = 10-9 m 1 um = 10-6 m

Q: If that same 225-g sample of water was frozen, what volume would it occupy, given that the density…

A: We have to determine the volume occupied by the 225 grams of the water sample that has been…

Q: 4) For the displacement of the metal, ethanol (d 0.79 g/mL) was mistakenly used in the liquid in the…

A: Density is defined as the mass of the object upon the volume of occupied by the object   density d=…

Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

A: Heptane and water, two immiscible liquids are taken in a cylinder.

Q: What mass of solid lead would displace exactly 234.6 liters of water? Given that lead has a density…

A: Unit of volume and density is converted as follows:

Q: A sample of an ethanol-water solution has a volume of 54.4 cm^3 and a mass of 49.9 g. What is the…

A: The mass of ethanol is - Mass = density×volume Mass = 0.789×54.4 Mass = 42.9216 gram   Then, total…

Q: A hollow spherical iron ball has a diameter of 15.3 cm and has a mass of 13.5 kilograms. Assuming…

A: The formula to find the volume of iron of a hollow sphere, V is: V = 43πR3 -  43πr3 (or) V =…

Q: Carbon

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: A 25.00 grams sample of a metal is placed carefully in a graduated cylinder, and then benzene is…

A: Given : mass of metal = 25.00 g Mass of metal + benzene = 60.85 g Volume of metal + benzene = 50.00…

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

A:

Q: Soft wood chips weighing 17.2 kg are placed in an iron vessel and mixed with 150.1 kg water and…

A: (a)

Q: The radius of cesium atom, Cs, 1s 265 pm, and its mass is 2.21 x 10 22 g. What is the density of the…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: In the area of nano-chemistry, particles defined as nanoparticles range in size from 1-2500 nm.  1…

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Q: What is the density (in g/mL) of a cube that has equal sides of 12 inches and weighs 491 pounds? The…

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Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

A: Given data is: Density of heptane = 0.684 g/ml Mass of heptane = 35.8g density of water = 1.00g/ml…

Q: Given the density of Au is 19.3 g/cm3, determine the mass of gold in an ingot with the dimensions of…

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Q: Dennis obtained a clean, dry stoppered flask. He determined the mass of the flask and stopper to be…

A: Mass of empty flask and water filled flask.

Q: what is the mass (in g) of the lead apron?

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Q: What volume of water (ml) would a 51.4 g sample of pure gold displace? The density of gold is 19.3…

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Q: To aid in the prevention of tooth decay, it is recommended that drinking water contain 0900 ppm…

A: Given  0.900 ppm = 0.900 g/106 cm3 water dimensions of cylindrical water reservoir diameter = 5.29 x…

Q: 4. Given the density of Au is 19.3 g/cm3, determine the mass of gold in an ingot having a volume of…

A: See the solution given below of question 4 (There are multiple questions: Since you have posted…

Q: The volume of a gold idol is approximately 1.0L. The density of gold is 19.3 g/ml and the density of…

A: We know that, density is defined as the mass per unit volume, i.e.…

Q: In microbiology, dilutions are critical for getting a countable number of microbes to grow on a…

A: Initially, the volume of solution to be taken having colonies of 50×106 (M1) is 1 mL (V1). The final…

Q: The speed of light is 2.998x10^8 m/s. How long does it take light to travel 40.cm? Set the math up.…

A: Given that,    Speed of light, s = 2.998×108 m/s   Distance travel by light, l = 40.0 cm  Time taken…

Q: An empty vial weighs 85.32 g (a) If the vial weighs 215.56 g when filled with liquid mercury…

A: We have to calculate the volume of mercury and weight of vial once filled with water.

Q: Substance A has a density of 0.30 g/ml and substance B has a density of 0.690 g/ml. Are the…

A: Density of a substance is defined as it mass per unit volume.The density (d), mass (m) and volume…

Q: You’re attempting to calculate the density of a titanium alloy. The titanium alloy is in the shape…

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Q: Suppose the metallic paper clips (which contain iron) had been replaced by magnesium or nickel.…

A: Ferromagnetism It is a property of substance in which metals act as a permanent magnets. Also it…

Q: An aluminum cylinder is 10.0cm in length and has a radius of 0.25cm. If the mass of a single Al atom…

A: Length of aluminium cylinder = h = 10cm Radius = r = 0.25cm Mass of single Al atom = 4.48x10^-23 g…

Q: avord Cylindento obtain avelume 3 In Part B, did all of your mass measurements have the same number…

A: Measurement of any value or a parameter is an important aspect in the scientific study. The measured…

Q: How far does light travel in 4.0μs?

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Q: About two centuries ago, Benjamin Franklin showed that 1 teaspoon of oil would cover about 0.5 acre…

A: The volume of the oil (V) = Area (A) x Thickness (T), or T = V/A  Given: The volume is 5.0 cm3. The…

Q: When 89.329 g of an irregularly shaped sample of cobalt was placed in a container and filled to the…

A: Given: Total volume of liquid = 25.00 mL. Mass of Cobalt = 89.329 g. Mass of cobalt with ethyl…

Q: The density of maple syrup is 1.37 g/mL and 1 tsp = 4.93 mL. If a recipe calls for 26 g of maple…

A: Volume of 1.37 g of maple syrup is one milliliter. Therefore, the volume of 26 g of maple syrup can…

Q: An empty Erlenmeyer flask weighs 201.9 g. When filled with water (d = 1.00 g/cm), the flask and its…

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Q: Ariel was wondering how much water there was in the sea.  If the total amount of water in the sea is…

A: Given, Volume of water = 3.73 × 108 km3

Q: please highlight the correct answer

A: The molarity relation is given by- M1: bacteria count cell per mL V1: Initial Volume M2: bacteria…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".