1. The following compounds are nitrogen fertilizers. Which compound supplies the most nitrogen to the soil based on its mass percentage? a. Ammonia, NH3 b. Urea, CO (NH₂) 2 c. Ammonium nitrate, NH4NO3

Q: An irregular shape of silicon block (density = 1.93 g/cm3) is deepened into water and caused a 31 mL…

A: Provided density of Si block=1.93g/cm3 Also, 1 cm3=1 ml Volume of Si=increased volume of water after…

Q: The composition of a commercial cold remedy mixture is 87% aspirin, 7% caffeine, 6% vitamin C. What…

A: Mass of mixture that contains 5 g Caffeine = ? % of aspirin = 87 % % of caffeine = 7% % of vitamin C…

Q: represents tne A 27.29 g 6.41 g 27.29% C 17.09 g 72.71 g O2 72.71% 100% CO2 100.0 g CO2 23.5 g CO, |…

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Q: There has been increased evidence that human activities are causing changes in Earth's atmospheric…

A: The mass of oxygen used = 1.0 g. The molar mass of Oxygen = 16 g/mol.

Q: When the compound (Ni (C4H7N2O2) 2) formed in the gravimetric analysis of the 0.5012 gram nickel…

A: It is given that the mass of the sample is 0.5012 gram and the mass of the compound formed is 0.1836…

Q: A sample of H2O that contains 3.79 ×10^25 water molecules is what amount of water (in moles)? What…

A: The number of moles is the mass of the substance upon the molar mass. The number of moles is also…

Q: How many moles of carbon dioxide are there in 52.06 g of carbon dioxide?   Select one or more: a.…

A: The number of moles indicates the amount of a particular atom in the compound containing that atom.…

Q: how many ions or atoms of each element are in 160.5 g of the following substances?  a) H2 _?_ x1025…

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Q: A solid circular cone made of pure platinum (density = 21.45 g/cm3) has a diameter of 2.75 cm and a…

A: Given information,    Diameter (d) = 2.75 cm so radius (r) = 1.375 cm     Density = 21.45 g/cm3…

Q: For the reaction of sodium sulfide with iron(III) chloride below , you have 319.5 kg of sodium…

A: The balanced reaction is: 3Na2S(s)  +  2 FeCl3(s)    →   Fe2S3(s)   +  6NaCl(s) Calculation of no.…

Q: What is the Mass pf Cl- found in the water sample (in grams)? %(w/w) Cl- in the water sample?…

A: Given data,Mass of titrant(AgNO3) used in trial 1=0.76gMass of AgNO3 used in trial 2=0.73gMass of…

Q: A) Chlorophyll molecules are responsible for the green pigmentation of plants. Differing chemically…

A: Given that : 1 molecule of chlorophyll X contains 4 N atoms. % nitrogen by weight = 6.26 %

Q: What mass of ammonia can be made from 20.0 g of hydrogen? 3H₂+ N₂ → 2NH₃

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Q: 3. In a blast furnace, iron (III) oxide reacts with coke (carbon) to produce molten iron and carbon…

A: The given reaction is, Fe2O3+3 C → 2 Fe + 3 CO The reaction is already balanced since all elements…

Q: Part B. 4. Volume of a Drop of Water Number of drops (10) 10 Mass of flask + watchgiass + 10 drops…

A: A numerical problem based on dimensional analysis, which is to be accomplished.

Q: Moles NH, (mol) 2. Rise Mass NH, (g) Rise Icnis Ik the chemical equation. Mole Ratio of NH,:N, Mass…

A: Here we are using mass by simple mole concept

Q: nitrogen gas to produce ammonia. How many kilograms of hydrogen would be required to react…

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Q: Explain, in terms of the composition, why sample A represents a pure- substance. * B 8.

A: Those substances which have mass and occupies space is known as matter. Matter can be classified…

Q: 1. All of the substances listed below are fertilizers that contribute nitrogen to the soil. Which of…

A: More is the percentage of nitrogen in the compound is the richest source of nitrogen on mass…

Q: Ammonium nitrate (NH4NO3) is a common fertilizer. Agronomists base the effectiveness of fertilizers…

A: 1) The mass percent of nitrogen in ammonium nitrate has to be calculated.

Q: find the empirical formula for the tin oxide formed? calculate the sn% and o%? calculate the %error…

A: Given information: mass of crucible= 25.7700 g mass of crucible and tin =26.6952 g mass of crucible…

Q: Ammonium phosphate ((NH,) PO,) is an important ingredient in many fertilizers. It can be made…

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Q: u. 4. In the chemical reaction 2AL203 - 4Al + 302, the molar ratio of aluminum to oxygen is a. 2:3…

A: 4. given :-2Al2O3 → 4Al + 3O2  To calculate :- molar ratio of Al to O2  5. given :- P4O10 + 6H2O →4…

Q: Mass of crucible + lid 18.30 08 Y 18.8979g 18.62009 |8.८1१। १ From the data above, calculate the…

A: We are given experimental data for the heating of hydrated MgSO4 salt. All calculations for #1 are…

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

A: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg.

Q: Commercial sodium "hydrosulfite" is 90.1% Na2S2O4. The sequence of reactions used to prepare the…

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Q: For the reaction: CS2 (g) + 3 02 (g) CO2 (g) + 2 SO: (g) calculate: 10. the mass of oxygen (in kg)…

A: The reaction is CS2(g) + 3O2(g) →CO2(g) + 2SO2(g)

Q: How many oxygen atoms are there in 2.10 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) %3D O a. 4.82 X…

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Q: a) What is the mass, in grams, of 5.000 moles of carbon atoms? b)What is the average mass, in…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Calculate the percent composition of oxygen in the following compounds: NaOH Al2(SO4)3 CaCO3 MnO2 In…

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Q: 5. Which statement is NOT true? a. One mole of a substance contains a fixed number of particles. b.…

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Q: A compound has the mass % composition of 49.97 % tungsten, 15.23 % nitrogen, 34.79 % oxygen. What is…

A: Empirical formula is simplest integer ratio of atoms in compound.

Q: Coke is an impure form of carbon that is often used in the industrial production of metals from…

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Q: Mass of iron powder used (g)   Theoretical yield of K3[Fe(C2O4)3] ∙3H2O (g)   Actual yield of…

A: The species percentage yield equation will be equivalent to the mathematical ratio of the species…

Q: A compound is found to contain 63.65 % nitrogen and 36.35 % oxygen by mass.   NO4   N2O   N2O4…

A: empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a…

Q: What is the mass of 3.45 moles of aluminum sulfate [Al2(SO4)3]?

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Q: A local water retention pond was found to have elevated levels of mercury concentrated as 14 ng per…

A: Given : Concentration of mercury i.e Hg = 14 ng/L. And volume of water in bond = 1250 m3  Since 1 ng…

Q: 15. Kkura found a sulfide ore in the dungeon which she identified to be chalcocite. While waiting…

A:

Q: What is the percent of carbon in the pesticide DDT (C14H9Cl5) ? The molar mass of C14H9Cl5 is 354.5…

A: The given data: The chemical formula for DDT = C14H9Cl5 The molar mass of DDT = 354.5 g/mol To…

Q: You weigh a dry flask, and place a chunk of solid into it, then weigh it again. You then fil the…

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Q: A compound has the mass % composition of 49.97 % tungsten, 15.23 % nitrogen, 34.79 % oxygen. What is…

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Q: Part C Now that we have put coefficients of 3 in front of CaSO4 and CaCl2, what coefficient should…

A: Given, 3 CaSO4  +  AlCl3                       3 CaCl2  +  Al2(SO4)3     Required,…

Q: What percent by mass of iron(II) phosphate is iron? a.46.9 b.73.2% c.24.3% d.33.7%

A: Determination of percentage of iron in iron(II) phosphate

Q: How do I solve?

A: Given,Mass of ethane, (CH3CH3) C2H6 = 21 gMass of oxygen, O2 = 157 gMoles of C2H6 and O2 can be…

Q: (d)Using the formula Mn(ClO₄)₄ (MM = 452.74), what is the percent by mass of Cl in the compound?…

A: Number of moles = mass / molar mass  % by mass =( mass of Cl atoms in Mn(ClO4)4 / mass of 1 mol of…

Q: 2NH3(g) + 3Cu0(s) N2(g) + 3Cu(s) + 3H20(1) a) If a sample containing 18.1 g of NH3 reacted with 90.4…

A: Limiting reactant :- Reactant which is present in lesser amount than required as per  balanced…

Q: The mineral iron pyrite (FeS2), typically, has a mass percentage of what is known as fool’s gold of…

A: Each FeS2 has 2 S atoms.  Each BaSO4(s) has 1 S atom. Hence each mol FeS2 will give 2 mol BaSO4(s)…

Q: 1.The compuond cisplatin Pt(NH3)2Cl2 is an antitumor. a)Calculate the elemental percent composition…

A: In problem a) we will find out the mass percentage of elements present in cisplatin and in b) we…

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".