Claim True / False Why 6 2 f(x) The hydrogen to oxygen mass ratio in C24H42O21 is 2 to 1. One mole of Naz PO4 contains 4 moles of oxygen.

Q: 8.) Considering the equation 2 NaI (ao) + Cl₂(g) → 1₂ (s) + 2 NOCI (aa) How many grams of Sodium be…

A: 2 NaI (aq) + Cl2(g) ==> I2(s) + 2NaCl (aq)  Given Mass of Iodine = 49.5 g  Molar mass of Iodine =…

Q: Calculate the mass in grams of a sample of NO2 that contains 1.000 x 10^25 molecules.

A:

Q: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

A: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

Q: Methylhydrazine, N2H3CH31l2, is used with the oxidizer dinitrogen tetroxide, N2O41l2, to power the…

A: Methylhydrazine, N2H3CH3 (l), is reacted with dinitrogen tetroxide, N2O4(l), to produce N2, CO2, and…

Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: Given - Weight of Al2O3= 12.6kg = 12.6 × 103 g (1kg = 1000g) Weight of NaOH=59.4kg = 59.4 × 103 g…

Q: what is the weight in grams of 4.30 x 10^14 CF4 molecules?

A:

Q: Even though lead is toxic, lead compounds were used in ancient times as white pigments in cosmetics.…

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Q: What is the mass percentage of C in caffeine, C18H10N4O2

A: The mass percentage is calculated by the formula, mass%=mass of elementmass of compound×100

Q: Would it be possible to determine the percentage of oxygen in NaCIO3?

A: The given compound is = NaCIO3 The percent of oxygen in this compound is =?

Q: An 8.00 gram sample of the hydrated salt, CoCl2 x XH2O was thermally decomposed into anhydrous…

A: Given: Mass of hydrated salt = 8.00 g. And the mass of anhydrous salt obtained = 4.370 g.

Q: Would it be possible to determine the percentage of oxygen in NaCIO3?

A: Mass percent of an element is the mass of element divided by its total mass. Write the expression to…

Q: Calculate the mass of scheelite (CaWO4) that contains a million (1.000*10^6) oxygen atoms

A:

Q: What is the mass percent of P in H3PO4? Show your calculations please.

A: Percent mass of an element in a compound can be calculated by using the following formula:

Q: Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two…

A:

Q: The density of solid Cr is 7.15 g/cm3. How many atoms are present per cubic centemeter of Cr?

A: Mass = Volume x density Number of moles = Mass/molar mass Number of molecules = 6.0224 x 1023 x…

Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

A:

Q: Madagascar is one of the most important gem-producing countries. three tonnes of Madagascar rock…

A: In order to solve this question, we will be using basic mole concepts. Also, since you have asked…

Q: Which element comprising Ma(OH)2 has the highest percentage by mass?

A: The compound given is Mg(OH)2. Assuming 1 mole of Mg(OH)2.

Q: Calculate the mass percentage of carbon in a mixture that contains 244 grams of potassium carbonate…

A: Molar mass of K2CO3 = 138 g/mol Molar mass of citric acid = 192 g/mol

Q: Fill in the blanks.

A: The balanced chemical equation for this reaction is: NH3 + Br2 + H2O → NH4Br + HOBrNH3 is…

Q: How many atoms of O are found in 1.00 x 10 2 g of K 2Cr 2O 7 ?

A: Number of atoms of Oxygen present in the given compound can be calculated as -

Q: During the 1950s, pentaborane-9 was tested as a potential rocket fuel. However, the idea was…

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Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Ionic compounds formed by combination of opposite charge ions

Q: Given the following reaction in the picture, what mass of hydrogen gas will be produced by the…

A: Given reaction: 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g) We have to find the mass of hydrogen gas that…

Q: 2. Balance the following equations by supplying the lowest whole numbers for w, x, y, and z: (a) w…

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,

Q: How many H atoms are there in (3.80x10^2) grams of H2O?

A: Number of moles = Mass/Molar mass Number of atoms in 1 mole = 6.0224 x 1023 Molar mass of water =…

Q: What is the mass percentage of Na in Na2SO3?

A: To calculate the mass percent of an element in a compound, we divide the mass of the element in 1…

Q: Elemental chlorine exists in nature as diatomic molecules of Cl2. Could the process you used to…

A: Chlorine is a halogen with atomic number 17. It has one unpaired electron in its outermost orbital.…

Q: 2 V2O5  +  5 Si →  4 V +  5 SiO2 Given the above balanced equation, calculate the number of grams…

A: Given , Mass of V metal = 476 g

Q: Explain the attachment

A: Given, Mass of Mg(OH)2 = 5.97g

Q: hich of the follovwing calcium compounds is used to detemine the presence of carbon dioxide and…

A: The correct option is:

Q: (3b-301-4.12) Carborundum is silicon carbide, SiC, a very hard material used as an abrasive on…

A: Given information, SiO2 + 3C  -->  SiC + 2CO 4.12 moles of SiO2

Q: A 161g sample of Mn Cleon HqO yields 112g of the anhydrous compound atter neating Determine n10 the…

A: To get the number of water molecules or n value  find the moles of MnCl2 (ANHYDRIOUS)  find the…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Applying basic concepts of formula formation.

Q: How many grams of hydrogen are there in 2.5 g of water.

A: Given, 2.5 g of water  Molar mass of water = 18 g/mol

Q: What is the mass percentage of S in hydrochlorothiazide, C₇H₈ClN₃O₄S₂? Provide an answer to two…

A: The percent mass of S in given compound is determined by using following expression. %S=Molar mass…

Q: About how many MOLES of aluminum are present in 152.89 grams of Al2O3?

A: Moles of a compound=given mass of the compoundmolar mass of the compoundMolar mass of Al2O3 is…

Q: What kind of molecule can you make by moving Cl = Chlorine and Mg=Magnesium?

A: Combination reaction is a type of synthesis reaction in which two or more atoms or molecules…

Q: What is the mass percentage of Na in NaNO₃?

A:

Q: Write the balanced chemical equation for the fermentation of sucrose (C12H22O11) by yeasts in which…

A: Balanced chemical equation of a reaction is written according to law of conservation of mass.…

Q: A Group 2 metal with an electron configuration of [Ne]3s2 combines with fluorine (F2) to produce a…

A:

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.