J.R. S.

04/20/22

Help with Chem problem pls

Given the reaction of methane and Oxygen Gas, how many moles of water is produced ifyou start with 10 moles of methane?CH4 (g) + 2 o2(g) -› CO2 (g) + 2 H20 (g)

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Chemistry

04/20/22

PLEASE HELP WITH CHEMISTRY LIMITING REAGENTS PLS

SiO2 (s) + 4 HF (g) -› SiF4(g) + 2 H2O (I)(The Molar Mass of SiO2 is 60.09 grams/mol)If we start with 6 moles of IF 'and 45 grams of SiO2 which is the limiting reagent?

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Chemistry

04/20/22

Please help with limiting reagents highschool chem problem please

3 Fe (s) + 4 H20 (g) -› Fe3O4 (g) + 4 H2 (g)When 8 moles H,O is mixed with 4 moles Fe, which is the limiting reagent?

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Chemistry

04/20/22

HELP WITH HIGH SCHOOL STOICHEOMENTCRY PLEASE

How many moles of Nitric Oxide are formed in the following reaction if you start with 42grams of Ammonia in a room filled with Oxygen Gas?(the molar mass of Ammonia is 17.04 grams/mol)2 NH3 (g) + 3... more

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Chemistry

04/20/22

PLEASE HELP ME WITH THIS STOICH PROBLEM!!

If Hydrogen Peroxide can be decomposed into Water and Oxygen gas, how many grams of water is formed if one 32 fl oz bottle has 8 moles of Hydrogen Peroxide2h2o2=2h2o+o2

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Chemistry

04/20/22

Determine the equilibrium constant for a reaction at 200 K if ∆G° =20.1 kJ/mol. (R = 8.314 J/mol ･ K)

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Chemistry

04/20/22

K2SO4 is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.400 M K2SO4 solution.

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Chemistry

04/19/22

Stoichiometry and Percent Yield

A student reacted 0.500 g of Pb(NO3)2 with 0.750 g of KI according to the reaction,Pb(NO3)2 (aq) + 2 KI (aq) --> PbI2 (s) + 2 KNO3 (aq)If the student obtained 0.538 grams of PbI2 product after... more

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Chemistry Buffer

04/19/22

buffer solution - chemistry

I have no idea where to start on this. Please give me a well-detailed explanation of how to solve this.Given:pKa; (CH3COOH) 4.75pKa1 (H2SO3) = 1.90pKa2 (H2SO3) = 7.20Which of the following mixtures... more

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Chemistry Equilibrium

04/19/22

Equilibrium - chemistry (quiz 3 question1)

Consider the following equilibrium reaction in a closed gas container with a constant volume: (= is the arrow that goes both ways) H2(g)+I2(g)=2HI(g) At some point, an amount of deuterium gas (D2)... more

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Chemistry Decomposition

04/19/22

decomposition - equilibrium - chemistry (8.11)

The value of the equilibrium constant Ke for the decomposition of the gas diiodo I2 in iodine atoms is 3.6 x 10 -10 at a specific temperature. Calculate the equilibrium concentration of the iodine... more

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Science Chemistry

04/19/22

Kc Chem Questions

Which of the following is true ? a. H2S‎04 is a str‎ong acid ‎because it has 2 hydro‎gensb. Meth‎yl a‎mine (CH3NH2) is an e‎xample of an Arrheni‎us base.c. Str‎ong Bro‎nsted- Lowry acids has... more

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Chemistry Biochemistry

04/19/22

Peroxidases Reduce Peroxides Using Various Electron Acceptors

Hello,I have just read this in Harper Biochemistry book :Peroxidases Reduce Peroxides Using Various Electron Acceptors :In the reaction catalyzed by peroxidase, hydrogen peroxide is reduced at the... more

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Chemistry General Chemistry

04/19/22

Solve the following problem. Refer to the given mass numbers in computing for the molar mass.

Molar numbers: Fe= 58.85O=161. If 0.95 g of Fe is used in the reaction how many moles of O2 are needed to completely react with Fe?

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Chemistry

04/19/22

Calculate the enthalpy of combustion of methyl linoleate

Calculate the enthalpy of combustion (in kJ) of methyl linoleate (C₁₉H₃₄O₂), an important component of many biodiesel fuels made from corn oil and methanol, given the following standard enthalpies... more

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Chemistry Organic Chemistry

04/19/22

Calculate the amount of heat needed to melt 118. g of solid hexane and bring it to a temperature of 63.2 C. Be sure your answer has a unit symbol and the correct number of significant digits.

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Chemistry

04/18/22

How do i solve this?

A 12.9g sample of a metal is heated to 100.o C and used to heat 46.5g of water from 23.0o C to 35.0o C, the specific heat of the metal is ______ J/go C.

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