Chemistry (10th Edition)
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(6x1023seconds)(3600seconds1hour)=1.... more
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The mass can be changed to whatever mass however ... more
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Let's say we have to balance the chemical equation... more
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1. Determine type of reaction that occurs.2. The ... more
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No, reactions between molecules occur on the basis... more
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Let's take the example of marbles kept in a bag ... more
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Relative atomic mass is an average of the atomic ... more
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The periodic table contains the average atomic ... more
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The three conversion factors that would be ... more
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CxHyOz -------> CO2 + H2OC present in carbon ... more
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The Empirical and Molecular formula are two types ... more
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A limiting reactant problem is one where the ... more
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The balanced chemical reaction is:2 SO2 + O2→ 2 ... more
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Experimental errors The main sources of errors in... more
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Chemical formula gives idea about each constituent... more
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In case of NH3H has the largest subscript.Mass of ... more
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It is definitely possible, see the number of atoms... more
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a) 2 cups of butter can fully react with 3 eggs, ... more
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Moles = Mass/Molar Mass; First we need molar mass ... more
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Charcoal is one of the carbon's allotropes that ... more
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When rusting happens the following chemical ... more
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Gasoline is consists of iso octane and n- heptane... more
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When 100g of reactant A reacts with 20g of ... more
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Yes there is a difference.In homogeneous mixture, ... more
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To know which chlorine isotope is more abundant, ... more
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Can the subscripts in a chemical formula be ... more
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since, 2 mole of A reacts with 1 mole of B to ... more
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In chemical reaction, you cannot simply add the ... more
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The mole is the easiest way to use due to the ... more
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Avogadro's number (6.022×10²³) is the way you ... more
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1.- Calculate the amount of dollars you haveData:... more
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Given with one mole of a compound, there are ... more
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The most basic type of notation is empirical ... more
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Molar mass gives the average mass of a molecule as... more
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Mass percent is a constant quantity with respect ... more
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A balanced chemical equation indicates the ... more
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On the product side, 1 x is bonded to 2 y atoms; ... more
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Hydrogen = BlueOxygen = Red Equation is not ... more
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The theoretical yield is the expected yield or ... more
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When a reactant is in excess it mean it is ... more
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from the given chemical reaction-1 mole of Y2 ... more
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1.- To determine the identity of the element, the ... more
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% of 185Re =100-62.6=37.4%So,(186.956×62.6/100)+(M... more
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Assuming that silicon (Si) has three major ... more
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Average Atomic Mass = (Mass of Isotope 1)(... more
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The data reported here designates the isotopic ... more
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To calculate the average atomic mass, we will use ... more
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The mass of 500. atoms of iron (Fe) can be ... more
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To get the number of atoms of Fe in 500 g iron, ... more
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Number of Chromium=5x1020/6.022x1023=0.000830 ... more
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Mass of the Compound=Number of molesx Molar Mass ... more
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The moles of NH3 is 5The molar mass of NH3... more
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Step 1 : You have to find how many moles of N ... more
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Mass of phosphorus is present in 5.00 moles of ... more
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Number of moles of N2 molecule=1/28=0.035714Number... more
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Take an example of P2O5:molar mass of P2O5 = 283.... more
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mass of Freon-12 = 5.56 mg = 5.56*10^-3 gmolar ... more
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The molar mass is 12.01 x 6 + 1.01 x 8 + 16 x 6 = ... more
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Given the compound as YBa2Cu3O7The total mass of ... more
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The compounds given are NO, NO2 and N2O.Percent by... more
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The first step is to determine the mass percent of... more
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We were told that 1 molecule of hemoglobin ... more
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Calculate the number of moles given that the Molar... more
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To calculate the molecular formula, we first find ... more
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First, divide each % by the element's molar mass:C... more
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i) Calculate the molar mass of the acidMolar mass=... more
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Please see the attached files more
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The balanced equation for decomposition of H2O2 ... more
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Unbalanced equation; CaSiO3(s)+HF(aq)⟶CaF2(aq)+... more
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The balanced equation describing this process is ... more
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Given Reaction:C12H22O11(aq) + H2O(l) → C2H5OH(... more
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1kg Al x 1kg Al1000 g Al x 26.98 g Al1 mol Al x... more
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From the balanced chemical reaction we get that, ... more
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Below is the calculation and explanation to the ... more
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First, let's calculate the amount of Ca3(PO4)2 in ... more
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sample of coke = 95%mass of coke needed to react... more
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2LiOH + CO2 → Li2CO3 + H2O2 mol of LiOH react with... more
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Since in the left diagram, there are only present ... more
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1 mole of O2 contains avogadro's number ( 6.023 x... more
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First, balance the reaction.Ca3(PO4)2 + 3H2SO4 --&... more
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Molar mass of sulfadiazine= 250.278gMol of ... more
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To compute for the mass of the products, convert ... more
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Full equation of bornite heating is2Cu3FeS3+ 7O2= ... more
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P4 (s) + F2 (g) ----- > PF3 (g)P4 (s) + 6F2 (g... more
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To determine which is the answer, compute for the ... more
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1 lb = 453.6 gmass of flour in grams = 453.6 gMass... more
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Here, The percentage of X = 13.10%So, 100gm of ... more
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Moles of (NH4)2CO3 = Mass/MW = 100.0 g/96.09 g = 1... more
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Please find the attached sheet. more
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Empirical mass of styrene = 12+1.008 = 13.008 ... more
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mC=(41.98 mg)(12/44)=11.45 mgmH=(6.45 mg)(2/18)= 0... more
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Given formula of compound E3H8Moles of E present ... more
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Mass of copper sulfate = 0.483 g Molecular weight... more
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C24H30N3O + 34O2 -----> 24CO2 + 15H2O + 3NO21.... more
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453 g Fe x 55.85g Fe1 mol Fe x 2 mol Fe1 mol Fe2... more
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If 100 g of vitamin A was taken Mass of E = 100... more
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Please find the attached sheet. more
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119 g PH3 x (1 mol PH3/34.0 g PH3) = 3.5 mol PH3 (... more
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Molar mass of NO is 30 g/mol.Therefore, weight of ... more
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Mass of C in CO2 produced =12×0.983/44 =0.268 g of... more
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40.0 g C x (1 mol C/12.01 g C) = 3.3305... mol C6.... more
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So the correct statements are:(1) In a chemical ... more
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The balanced chemical equation for the reaction is... more
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Balanced equation:SO2(g) + 2NaOH(aq) —> Na2SO3(... more
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For your better understanding the detailed answer ... more
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Let the fraction of Rb-87 be x. Then the fraction ... more
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mC=(0.213 g)(12/44)=0.058 gmH=(0.031 g)(2/18)= 3.... more
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multiply the following conversion factors:*1.... more
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2 Fe +O2 -------> 2FeOMoles of Fe = 20/55.8 = 0... more
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C2H6 + 3.5O2 --> 2CO2 + 3H2OC3H8 + 5O2 --> ... more
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The chemical reaction follows the reaction:N2H4 + ... more
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Since you are given of the mass of the compound ... more
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10 mm = 1 cm0.60 mm = 0.060 cmVolume of copper ... more
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M2S3 + 5 O2 -----> 2 MO2 + 3 SO2Decrease in ... more
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the explanation is attached on the photo. Have a ... more
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The mass percentage of a particular compound in a ... more
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The first step in solving the problem is to ... more
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Reaction 1: 4NH3 + 5O2 --> 4NO + 6H2OReaction 2... more
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Let's assume that there is 100 grams tetrodotoxin ... more
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2As + 4AsI3 →3As2I41 mol As + 2 mol AsI3 = 1.5 mol... more
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