How many particles are in 24.5g sample of aluminum hydroxide? Round to 2 decimal places.

Q: mass

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Q: Gaseous butane (CH3(CH2), CH;) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide…

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Q: When performing the gram stain, the the dye safranin is suspended in a 95% ethanol solution. If only…

A: The Answer to the following question is-

Q: What is the molarity of a solution prepared by dissolving 192.0 grams of Mg3(PO4)2 in enough water…

A: Given data,  Mass of Mg3(PO4)2 = 192.0 grams  Volume of solution = 1.5 L

Q: How many kcal/mol are in 206.16 kJ/mol? Do not put units in your answer. Do use proper significant…

A: Kcal/mol to KJ/ mol  1kcal/mol= 4.184 kilojoules   In SI units one kilocalorie per mole is…

Q: 4.08x10^24 particles of hydrogen bromide weight how much?

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Q: A balloon has a volume of 19.3 and 12.1 moles. The amount of moles decreases to 8.63. What is the…

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Q: If 71.0 grams of BaCl2 are produced in an experiment that should have produced 130.0 grams of BaCl2…

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Q: a) Which of the following is the lowest temperature? a) 42 C b) 318 K c) 57 F d) all these…

A: The solution requires unit and dimensional analysis .

Q: A chemist needs 16.63 mL of 1.816 M NaOH. What volume in mL of 3.97 M NaOH must be diluted in water…

A: During dilution with water the number of moles before dilution and after dilution remains constant.

Q: What is the molarity of a solution prepared by dissolving 226.8 grams of Mg3(PO4)2 in enough water…

A: Given Mass of Mg3(PO4)2 = 226.8g Total volume of Mg3(PO4)2  solution = 2.4 L Molarity of Mg3(PO4)2…

Q: An aqueous solution at 25 °C has a H,0 concentration of 3.8 x 10 - 10 M. Calculate the OH…

A: The concentration of OH- is calculated as follows

Q: Gaseous methane (CH,) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,)…

A: We are given the reaction of methane with oxygen gas. We have to find the mass of water that will be…

Q: 5. Calculate molar mass of Cu3(PO4)2. Report to the correct significant figures and units.

A: Atomic mass: Copper = 63.54 gm/mole Phosphorus = 30.97 gm/mole Oxygen = 16 gm/mole One formula unit…

Q: Gaseous butane CH3CH22CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2…

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Q: O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume -7 Calculate the volume…

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Q: Calculate the volume in liters of a 0.16 mol/L potassium dichromate solution that contains 125. g of…

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Q: A compound contains iron and bromine. A sample of the compound contains 6.371 g of iron and 10.991 g…

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Q: How many atoms are contained in 4.1 g of carbon? How can you round this answer to 2 significant…

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of carbon atoms weigh 12 g.

Q: Liquid hexane CH3CH24CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and…

A: The balanced equation for the combustion of hexane is   C6H14 (l) + 9.5 O2 (g) --------> 6 CO2…

Q: Ammonium phosphate ((NH4),PO4) is an important ingredient in many fertilizers. It can be made by…

A: The balanced chemical equation for the reaction between phosphoric acid and ammonia is as follows:…

Q: Calculate the mass of 0.11 moles of Cu(NO3)2. grams Give your answer to 2 decimal spaces.

A: Given that , No. Of moles of Cu(NO3)2 = 0.11 moles

Q: What is the molarity of a solution prepared by dissolving 172.2 grams of Mg3(PO4)2 in enough water…

A: Number of moles of a chemical compound is used to measure the amount of the compound in the given…

Q: you have 125 g of a certain seasoning and are told that it contains 22.0 g of salt. What is the…

A: Given,mass of salt = 22 gmass of seasoning = 125 gSo,mass percentage of salt in seasoning = (22…

Q: Please report your answer in mL  to 3 decimal places. No units please.

A: The molarity is used to define concentration which is determine as the number of moles of solute…

Q: moles

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Q: How many moles of carbon are in 2.2x1027 atoms of carbon? Round your answer to 1 decimal place.

A: Given data Number of atoms of Carbon = 2.2x1027 atoms Avogadro's Number is NA=6.02×1023 atommole

Q: What is the molarity of a solution prepared by dissolving 176.1 grams of Mg3(PO4)2 in enough water…

A: Given :- mass of Mg3(PO4)2 = 176.1 g                Volume of solution = 1.5 L  To calculate :-…

Q: A chemist must prepare 500. mL of 95.0 mM aqueous potassium permanganate (KMNO,) working solution.…

A: To approach this problem, the concept that we use is the concept of using equal milimoles of the…

Q: hen asked to record the buret reading shown below, a student wrote down a reading of 15.300 mL. mL…

A: We can see that the meniscus is at 15.300 mL So the value is be 15.300 mL. Hence, their reading is…

Q: How many mL of 0.556 molar magnesium chloride must a scientist pour into a beaker to have 17.6 g of…

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Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: Formula of methyl tert-butyl ether (MTBE) is :-  CH3OC(CH3)3

Q: Do the following calculations involving moles and molar masses: 1.  How many moles of NH3 are there…

A: Given,1.  5.0×1024 molecules of NH3 number of moles is:2. Mass of one molecule of NH3  is3. Mass of…

Q: gaseous methane (ch4) will react with gaseous oxygen (o2) to produce gaseous carbon dioxide (CO2)…

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Q: An alcoholic drink contains 44% alcohol by volume. Calculate the volume in ml of alcohol present in…

A: Volume by volume percent (V/V %): It is calculated as the volume of solute divided by the volume of…

Q: You have been asked to compound 8 capsules of lithium sulfate, containing 6 mEq Li* per capsule. The…

A: Given,  1 capsule contains = 6 mEq of Li+  Molar mass of Li2SO4 = 109.9 g/mole Weight of 8 capsules…

Q: In a standardization experiment, a student titrates a 0.250g sample of pure Na,CO, with her HCI…

A: Given Mass of pure Na2CO3 sample = 0.250 g Volume of HCl used to neutralize 0.250 g of Na2CO3 sample…

Q: 9 grams of NaCl are dissolved in 99 grams of water in a 2.0 L container. What is the mass percent of…

A: Mass percentage is the percentage of a component in a mixture. Mass percentage can be calculated by…

Q: Round your answers to the correct number of significant figures. Only use numbers in your answer.…

A: Conversion of temperature into Kelvin scale: -173°C=-173+273.15K=100.15 K127°C=127+273.15K=400.15 K

Q: e (CH18). When octane is burned in air, it chemically reacts with oxygen gas (0₂) to produce carbon…

A: Given,        Mass of Octane(C8H18);        Molecular weight of O2;       Molecular weight of CO2;…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.