9 100 grmas of Sodium and Magnesium contain same number of moles. Select one: True False

Q: 1. How many MOLECULES of xenon trioxide, XeO3, are present in 6.25 grams of this compound? 2. How…

A: Since you have posted multiple questions according to guidelines I am solving first two.If you want…

Q: Use the References to access important values if needed for this question. For the molecular…

A: Here we have to determine the conversion factor to convert moles of PCl3 into number of molecules of…

Q: what is a definition of a mole

A: A mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance.…

Q: Mass of crucible and cover is 43.92 g. The mass of crucible, cover, and magnesium is 44.62g. Mass of…

A: Empirical formula is the chemical formula  which represents the simple ratio of atoms of constituent…

Q: What quantity in moles of potassium atoms do you have if you have 7.50 x 10²² atoms of potassium.…

A:

Q: (Incorrect) Dolomite is a mixed carbonate of calcium and magnesium that decomposes to CO2 and the…

A:

Q: Convert 1.53 x 1024 atoms of carbon to moles of carbon. 1.53 x 1024 atoms = x10 TOOLS mol C

A: Given,  Number of atoms of carbon = 1.53 x 1024 atoms  Find number of moles of carbon = ?  Using the…

Q: A 2.37 gram sample of a KCI and KCIO3 mixture was found to contain 0.01611 mol of KCIO3. What is the…

A: Mass of mixture of KCl and KClO3 = 2.37 g Number of moles of KClO3 = 0.01611 mol Molar mass of KClO3…

Q: Calculate how many moles of CaCl2•2H2O are present in 1.50 g of CaCl2•2H2O and then calculate how…

A: Initial mass of calcium chloride di-hydrate = 1.50 g Molar mass of calcium chloride di-hydrate =…

Q: For the molecular compound phosphorus pentachloride, what would you multiply "moles of PCI5" by to…

A: To determine the multiplying factor to convert the moles of PCl5 to the number of molecules of PCl5.…

Q: 16 the m, you iave 30 minutes to upload your work on Canvas. Question 14 A student determines the…

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Q: How many moles of NaOH are in 2.2x1025 formula units of NaOH? Round your answer to 1 decimal place.

A: Given data,  Formula units of NaOH = 2.2 × 1025  Formula units of 1 mole NaOH = 6.022 × 1023

Q: Suppose that a compound containing copper and chlorine contains 0.01139 moles of copper and 0.03813…

A: According to the question:  moles of copper in compound = 0.01139 moles moles of chlorine in…

Q: The weight of grams for 4 moles of Br

A: We know, Number of moles = Mass /Molar MassThus,

Q: A student weighs 1.00 grams of CuSO, on a balance. After heating, the compound weighed 0.638 grams.…

A: SOLUTION: Step 1: The formula of Copper sulfate hydrate is CuSO4.5H2O. Mass of water = Mass of…

Q: 8. Calculate the number of moles in a sample containing 1.85 x 1034 molecules of water.

A: Given that: Molecule of water = 1.85 × 1034 molecules Number of moles = ?

Q: The chemical formula for lithlum fluorlde Is LiF. A chemist measured the amount of lithlum fluoride…

A: Molar mass of LiF is sum of atomic masses of Li and F.Atomic mass of Li is 6.941 and atomic mass of…

Q: A compound containing copper and chlorine contains 0.01026 moles of copper and 0.01721 moles of…

A:

Q: Na is plated out from a solution of NaCl. How many moles of electrons are required for every mole of…

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Q: Calculate the number of CO, molecules in 2.25x10-2 mole of CO2, Express your answer using three…

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Q: How many moles are in 5.53 g C203?

A: Given :- mass of C2O3 = 5.53 g  To calculate :- number of moles of C2O3

Q: How many grams of Se are there in a sample of Se that contains the same number of moles as a 65.8…

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Q: You have a 125-g sample of one of these substances. You determine that it is made of 16.7 g H, 75.0…

A: A chemical compound often comprises the same elements in very same compositions by mass, according…

Q: What is the percentage by mass of a silver ring that has a mass of 12.0 g and contains 11.1 g of…

A: Total mass of the silver ring = 12g  Mass of pure silver in the ring = 11.1g  Formula to find the…

Q: A compound contains 0.01238 moles of V and 0.02341 moles of Cl. Calculate the ratio of moles of Cl /…

A: A compound contains 0.01238 moles of V and 0.02341 moles of Cl. We have to calculate the ratio of…

Q: 0.100 mol of sodium chloride weighs 5.84 g   True False

A: Given,0.100 mol of sodium chloride weighs 5.84 g

Q: Multiple Choice: How many atoms of carbon-14 are in the average human body given the following four…

A: Given: The % of carbon in human body=23%(in Kg) The average mass of the human body=150 kg. The…

Q: The empirical formula of C9H9O6 is CHO True O False

A: Empirical formula is the simplest ratio exist between different atoms present in a compound.…

Q: Please help fill in the rest of the table using the provided data

A: Weight of NaBO3.4H2O = 1.0062 g (in all trials)Molarity of KMnO4 = 0.0101 MVolume of KMnO4 used =…

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.