Magnesium at start is 0.33g   mass at end is 0.49 g    Determine the number of moles of magnesium used from the mass of magnesium.

Q: Balanced Chemical Reaction Cas4 + 2 HCl + H20 → 4 S + CaCl, + H2 + H20 Where, Cas4 = calcium…

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Q: 0.445 g of iodine to moles

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Q: 0.126 mole of lithium weighs

A: Given,Moles of lithium = 0.126 moleRequired,                  Weight of lithium .

Q: Aqueous sulfuric acid (H,SO4) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

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Q: Urea (CH,N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with…

A: %Yield = (Obtained amount/calculated amount)x 100 Number of moles = Mass/molar mass Given that:'…

Q: A 0.4230 g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was…

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Q: The limiting reagent is Calculating theoretical yield: Molar mass of styrene Moles of styrene = |…

A: The reaction is the polymerization of styrene using the initiator Tert-butyl Peroxybenzoate. In…

Q: Determine the number of moles and the mass requested for each reaction in the image.

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Q: A typical aluminum can has a mass of about 14.9 g. Determine the mass of alum that could be produced…

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Q: chemical formula

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Q: Mass (g) Mass of zinc, Zn, Cl, product, and chlorine 33.160 Mass of evaporating dish only 44.013…

A: Given that, Mass of evaporating dish = 33.160 g Mass of crucible cover =44.013 g Mass of evaporating…

Q: Complete the table below by writing the symbols for the cation and anion that make up each ionic…

A: Ans

Q: In one experiment, a student used 0.21 g of aluminum and excess hydrochloric acid. a. Calculate the…

A: Given that 0.21 g aluminium react with excess hydrochloric acid.

Q: Percent yields are generally calculated from mass quantities.Would the result be the same if mole…

A: Interpretation- To explain with reason for the result of calculating percent yield using mole…

Q: Compute for the mass in grams of NaCl produced by reacting 1.50 g of NHẠCI with 3.0 g NaOH. NH4 +…

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Q: Calculate number of moles of a substance having 341gram mass and molar mass 568 gram/ mole

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Q: copper and nickel can be mixed to for corrosion resistant alloy. if a particular alloy is prepared…

A: Given that  Moles of copper = 10.7 Moles of Ni = 1.2

Q: 5. Magnesium Phosphate a. Calculate it's molar masS b. 183.58g of Magnesium Phosphate = mols…

A: Number of moles is the ratio of given mass of the substance to the molecular mass of the substance.

Q: Theoretical Yield & % Yield Mass of Starting Alcohol 5ml Acetic Acid 7ml Mass of Product (ESTER)…

A: A numerical problem based on yield of the reaction, which is to be accomplished.

Q: 20 g of CH3CONHCH3 is formed in the following reaction from 30 g of acetic acid (CH3COOH). Calculate…

A: Given chemical reaction,  CH3NH2 + CH3COCl ------> CH3CONHCH3 + HCl  Molar mass of CH3COCl =…

Q: Define percentage by mass

A: Percentage by mass is defined as the ratio of mass of solute by mass of solution (solute+solvent)…

Q: Thank you. What is the percent yield?

A: Theoretical yield = 0.2108 g ( which is rounded off to 0.21 g) Actual yield = 0.19 g

Q: Why is theoretical yield important?

A: Theoretical yield gives us the amount of product that should be formed from the stoichiometry of the…

Q: find the molar ratio and the empiricle formula from my data

A: First, the mass of the hydrate and anhydrous copper sulfate is calculated. Initially, the mass of…

Q: Determine the number of moles and the mass requested for each reaction in the image.

A: The reaction of alkene with excess Bromine is as follows:   The molecular mass of C2H4 = 2×12+1×4 =…

Q: Table salt, NaCl(s), and sugar, C₁₂H₂O₁1 (s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Dear student, you have posted two different questions. According to guidelines only first question…

Q: 3.Which is NOT described by the coefficients in a chemical reaction? a.Grams b.Atoms c.Molecules…

A: 3. Which is NOT described by the coefficients in a chemical reaction

Q: The mass of the product formed in an experiment is theoretical yield? True or false?

A: Given : Theoretical yield.  To find : statement is True or false.  Solution : As we know that, when…

Q: 24.3 g He = ____________ mol He

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass.

Q: What mass of of sugar is needed to combine with 250 g of water to prepare a sugar-water mixture that…

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Q: reactant controls the amount of product formed in a chemical reaction? A. excess reactant B. mole…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question…

Q: 18.1 g of ammonium carbonate into moles of ammonium carbonate

A: Given :- mass of ammonium carbonate = 18.1 g  To convert :- given mass to moles

Q: 100 gram of acetanilide, 1ml of sulfuric acid and 0.5ml of nitric acid.

A: Given that : Mass of acetanilide = 100 g Volume of sulfuric acid = 1 mL Volume of nitric acid = 0.5…

Q: When going from one substance to another substance, what must be used? A mole ratio A gram ratio The…

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Q: . Use the molar masses of the elements in the product to calculate the number of moles of…

A: Each chemical reaction occurs according to the stoichiometry of the reaction. Elements combine in a…

Q: I just need a step-by-step explanation for this problem I forgot how to Calculate percent yield

A: The percentage yield of the substance can be described as the ratio of actual yield of the substance…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".