How many grams of potassium metal are needed to produce 15.26 g of solid potassium hydride (KH)?Molar mass: K=39.09 g/mol KH=40.11 g/mol

Q: Complete and balance the following reaction as written. What are the products after balancing the…

A: Since in reaction it is given that we have only 1 HCl  Hence only 1 H+ will react with 1 OH- forming…

Q: How many grams of hydrogen H2 are produced by the reaction of 33 grams of magnesium Mg?

A: m H2 = ? m = 33 g Mg Mg + 2HCl --> H2 + MgCl2 MW H2 = 2 g/gmol MW Mg = 24.3 g/gmol MW MgCl2 =…

Q: CaO

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Q: How many grams of beryllium are needed to produce 36.0 g of hydrogen? (Assume an excess of water.)…

A: Given reaction: Be(s) + 2H2O(l) ....> Be(OH)2(aq) + H2(g)  Mass of hydrogen(H2) gas is produced =…

Q: If solutions of Na2SO4 and Ca(NO3)2 were mixed, would a solid be expected to form? O a. yes O b. no

A: • We need to determine whether a solid is formed or not when solution of Na2SO4 and Ca(NO3)2 is…

Q: What mass of silver oxide, Ag2O, is required to produce 25.0 g of silver sulfadiazine, AgC10H9N4SO2,…

A: Mass of silver sulfadiazine = 25 g Molar mass of silver sulfadiazine = 357.14 g/mol Moles of silver…

Q: Assuming one mole of compound, calculate the theoretical percentage composition of P₂O3. O P: 56.4%…

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Q: In the standardization of NaOH solution, 0.5211 g potassium hydrogen phthalate (204.22 g/mol) is…

A: Formula used : Molarity = no. of moles/ volume (Lt)

Q: Write the balanced chemical equation for the reaction between magnesium metal and hydro- chloric…

A: Metal reacts with acid to gives salt and hydrogen gas.The reaction between magnesium and…

Q: What mass in grams of hydrogen is produced by the reaction of 4.73 g of magnesium with 1.83 g of…

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Q: What is the number of coulombs required to electrolyze Au⁺(aq) to produce 3.20 mol Au? (F =…

A: GivenMoles of Au to produce = 3.2 mole1 F = 96500 Cgrams of Al produced =311 g

Q: Write a balanced chemical equation based on the following description: solid potassium oxide reacts…

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Q: What is the theoretical yield of CaO if 24.8 g of CaCO3 is heated? O 9.65 g Cao O 16.13 g CaO O…

A: Given data : Mass of CaCO3 = 24.8 g MMolar mass of CaCO3 = 100.08 g/mol Molar mass of CaO = 56.08…

Q: Give the chemical formulas for each of these acids.   hydrofluoric acid:…

A: A chemical formula is a symbolic representation of one molecule of the substance which tells the…

Q: How many grams of O2 are needed for 10.0 g of Al?

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Q: How many grams of oxygen are produced when 582 grams of water decomposes? 2H2O (l) --> 2H2 (g) + O2…

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Q: a(s) +;02(g) → CaO(s) -63

A: Dear student I have given answer to your question in the image format.

Q: A sample of cesium metal reacted completely with water, evolving 2.028 mmol of dry H 2 at 19 degrees…

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Q: d) FeCl3 + SO2 + H20 → FeCl2 + HCI + H2SO4 Given compound (d), what is the oxidizing agent? O iron O…

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Q: What is the balanced chemical equation for the decomposition of mercury (II) oxide?

A: Given reaction,      Decomposition of mercury (II) oxide

Q: In the standardization of NaOH solution, 0.5211 g potassium hydrogen phthalate (204.22 g/mol) is…

A: Given: Mass of potassium hydrogen phthalate present = 0.5211 g The molar mass of potassium hydrogen…

Q: Write a balanced equation for the combustion of liquid methyl alcohol (CHOH) in the presence of…

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Q: What mass of hydrogen gas can be produced by reacting 6 moles of aluminum with HCl? 2Al(s) +…

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Q: 2Pb(s)+O2(g)⟶2PbO(s) How much oxygen is needed to react with 400 grams of lead?

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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: Complete and balance: Manganese Sulfate + Aluminum Phosphate

A: We will write molecular equation, then balance it.

Q: write a balanced chemical reaction for the reaction of zinc with iodine, assuming that zinc and…

A: Both zinc and iodine are in solid form which means they exist as Zn and I2

Q: HOOH MnOz catalyst H, Ot O2 (gas) 2 Ce) HzO+ ē -> Kelectrons HCQ + NH3

A: 1.In the 1st Reaction MnO2 is source of oxygen. HCOOH+ O2---->H2O + CO2 C is 1 in both side. H is…

Q: The chemical formula of potassium thiosulfate is K_22​S_22​O_33​. What is the oxidation state of…

A: Given, potassium thiosulphate  Formula: K2S2O3  An alkali metal always has  +1 oxidation state. The…

Q: • What mass of carbon dioxide is emitted by an automobile per 5.0 x 102 g pure octane used?

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Q: Calcula the iodide i NaF, 231 p

A: The main objective of the question is to find the ionic radius of the fluoride ion (F-) by using the…

Q: Write balanced chemical equations for the following chemical reactions. Copper (II) oxide when…

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Q: 8. What mass of Potassium carbonate is needed to prepare 200. mL of a solution having a potassium…

A: The Molarity formula is given as, MolarityM=Given weightMolar mass×VolumemL×1000 where, Moles=Given…

Q: The nitrogen content of (NH 4 ) 2 SO 4 is: O a. 10.6 % N b.21.2 % N O c. 30.2 % N O d.4.2 % N

A: Standard data: The molar mass of nitrogen = 14 g/mol The molar mass of hydrogen = 1 g/mol The molar…

Q: Chlorine reacts with oxygen to form Cl2O7. (a) What is the name of this product (see Table…

A: a. Chlorine reacts with oxygen to form Cl2O7. Given oxide has two chlorine atoms and seven oxygen…

Q: What is K for 2 NO (g) + Cl, (g)= 2 NOCI (g)

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Q: How much energy is mass of PC13 is 137. 4 PC13(g) → P4(s) O 1.68 × 103 kJ O 1.20 x 103 kJ 7.89 x 102…

A: Given that : Mass of PCl3 = 545g Molar mass of PCl3 = 137.32g/mol Reaction = 4PCl3(g)  --->…

Q: Complete and balance the following equations: (a) CO,(8) + OH (aq) → (b) NaHCO,(s) + H*(aq) (c)…

A: Since your question contains multiple subparts we will solve only the first three subparts. For the…

Q: For the following equation, which atom is the oxidizing agent? 2 F e ( s ) + 3 C l 2 ( g ) → 2 F e…

A: Oxidation: if there is increase in oxidation state from reactant to product then that particular…

Q: Write balanced chemical equations for the following reactions. The decomposition of solid ammonium…

A: Balanced Reaction for decomposition of ammonium nitrate : NH4NO3(s) ------> N2O(g)  + 2H2O(g)

Q: How many grams of magnesium are needed to react with 12.5 g of O? 2 Mg + O, - 2 Mgo A) 2.50 g B) 1.0…

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Q: What mass of sodium hydroxide ,NaOH, would be required to produce 5.97 g of the antacid milk of…

A: Answer :- The balanced chemical equation is -                     2 x 40 g                 58 g…

Q: 2. Write a chemical equation showing the transfer of electrons from sodium atoms to sulfur atoms to…

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Q: A chemist needs to produce 100 grams of gallium chloride, when gallium reacts with hydrochloric acid…

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Q: If two moles of carbon are available for the reaction described by the following equation. How much…

A: Given balanced chemical equation is SiO2(s) + 3C(s) ------> SiC(s) + 2CO(g) Given that , Moles of…

Q: In the following How many N atoms How many H atoms How many Cr atoms How many O atoms 4 (NH,)½C12O,

A: ANSWER IS

Q: 6. Consider the following reaction Cas(PO.)2 + 3 H,so, → 3 Caso, + 2 H;PO, a. What masses of calcium…

A: Limiting reagent It is a reagent that will be consumed completely in a reaction and determines the…

Q: What is the chemical formula for the compound formed between manganese(IV) and chlorine?

A: Manganese (Mn) is a transition element and Mn is present in +4 oxidation state . Cl (atomic number =…

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.