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: Silicon carbide, SiC, is used as an abrasive for many industrial processes. If you want to produce…

A: Given-> Weight of SiC = 1.00 kg = 1000 gm (1 kg= 1000g)

Q: How many moles of aluminum are needed to make 6 moles of molecular hydrogen ? Given the reaction : 2…

A:

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: Which species is being oxidized in the following reaction? 2 Au(NO3)3(aq) + 3 Ca(s)3 Ca(NO3) (aq) +…

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

A:

Q: Use Scenario 2C. What is the competitive price of a permit to emit 1 cubic foot of carbon monoxide?

A: Scenario 2C. What is the competitive price of a permit to emit 1 cubic foot of carbon monoxide? How…

Q: how many grams of al2o3 can be made for 6.95 grams of Al

A:

Q: What is the pka of hydrogen (H2)?

A: Hydrogen is an extremely weak acid that is dissociated to give H+ and H-.

Q: many grams of oxygen would be needed to react with C6H12 to produce 7.15 grams of carbon dioxide?

A: Given -> Weight of CO2 = 7.15gm

Q: A sample of NaCr(SO₂)₂.10H₂O was heated in a crucible, yielding 1.27 g of the corresponding…

A: The molar mass of NaCr(SO4)2 is = 267 g/mol The molar mass of H2O is = 18.0 g The mass of NaCr(SO4)2…

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

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Q: what is the mass percent of water in ca(no3)2・4h2o?

A: The molar mass of Ca(NO3)2.4H2O is 236.146 g/mol and the molar mass of water is 18 g/mol. The molar…

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: What is the mass percent of water in Zn(NO3)2·6 H2O?

A: First calculate the mass of water.

Q: What is the maximum mass of B4C that can be formed from 2.00 moles of boron(III) oxide?

A: Boron(III) oxide is B2O3 B4C can be prepared by the reaction B2O3 with carbon. The chemical reaction…

Q: What mass of NaHCO3 reacts in order to produce 450. g of Na3PO4?

A: Balanced chemical reaction is given by:3NaHCO3 + H3PO4 = Na3PO4 + 3H2O + 3CO2

Q: Calculate the mass (in grams) of 8.336 x 10^16 molecules of Ca5(PO4)3(OH) (Hydroxyapatite)

A: We have been given 8.336 x 1016 molecules of hydroxyapatite.and we have been asked to calculate the…

Q: You are told by your instructor to go to the stock room and find a bottle of the chemical K3Cl. Does…

A: K is potassium, element of group 1 of periodic table with 1 valence electron And Cl is chlorine,…

Q: Is boron the sole nonmetallic element of group 3A?

A: A nonmetal is an element that mostly lacks the characteristics of a metal. Physical characteristics…

Q: Calculate the percentage of NaOCl Mass of NaOCl in sample: 0.8933g Net Volume of Na2S2O3: 24mL…

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Q: Fill in the blanks.

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

Q: Are ions present in a sample of P₄O₆? Explain.

A: The chemical bonding is of two types namely ionic bonding and covalent bonding. When the metal and…

Q: Write the uses/ application of sb2O4( antimony tetroxide)

A: Sb2O4 known as Antimony tetroxide is an inorganic compound. The empirical formula of the compound is…

Q: 2. How many grams of water will be produced when 0.0155 moles of hydrogen gas react completely with…

A: Here we have to calculate the mass of water produced by the complete reactions of 0.0155 moles of H2…

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: Suggest the formula of the acif used to prepare ca3(po4) 2

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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: What is the maximum mass of Pl that can be prepared from 7.75 gofP0, and 11.86 g of iedine accenting…

A: Given: Mass of P4O6 = 7.75 g Mass of I2 = 11.86 g Molar mass of P4O6 = 219.88 g/mol Molar mass of I2…

Q: Give two differences in chemical property between carbon or its compounds and the rest of the group…

A: CARBON IS DIFFERENT FROM OTHER ELEMENTS OF GROUP 4 AS This is the difference between carbon and one…

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: what is the mass percentage of water in Zn(NO3)2*6H2O?

A: Mass percentage of water = Mass of waterMass of Zn(NO3)2.6H2Ox100There are total six water molecule…

Q: Write the equation for the reaction associated with the Kb2 of carbonate, CO32-.

A: The objective of this question is to write the equation for the reaction associated with the  of…

Q: how do you draw the Lewis structures for PO33- and what is the VSEPR shape of the compound?

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Q: Write the equation for the reaction: when nitrogen gas (N2) reacts with sodium metal (Na), solid…

A: Sodium nitride (Na3N) is formed from the reaction of nitrogen gas with sodium metal. Here,…

Q: Which type of VSEPR shape is shown here? 0=c=0 Linear Bent Tetrahedral Trigonal Planar

A: All the details are explained in handwritten solution.

Q: Equivalent weight of Al(OH); is O 39 O 62 O 78 O 26

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Q: What is the molar mass of the sodium alum salt, KAl(SO4)2 •12H2O?

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Q: Given the following equation: 2 PbS + 3O2 -----> 2 PbO + 2 SO2 What is the theoretical yield of…

A:

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

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Q: c) Suggest an explanation for the ability of carbon to form long chain hydrocarbo d) The enthalpy of…

A: Answer 4 d  Enthalpy of Combustion is the Difference in total sum of Standard enthalpies of…

Q: Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) +…

A: The balanced equation is     2 Na (s) + 2 H2O (l) --------> 2 NaOH (aq) + H2 (g) Given that the…

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.