Ishwar S.

Chemistry

05/20/19

Chemistry review

How many moles of air are in a 0.125L flask of the pressure is 1.0 atm and the temperature is 273K

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Chemistry

05/20/19

85.2 grams of sodium sulfate and 66.7 grams of lead (II) chloride react. Write the balanced equation. Classify the reaction. Identify the precipitate Identify the limiting and excess reactant.

85.2 grams of sodium sulfate and 66.7 grams of lead (II) chloride react. Write the balanced equation Name each of the products Classify the reaction Identify the precipitate Identify the limiting... more

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Chemistry

05/17/19

Chemistry doesn’t like me.

An unknown compound contains only C, H and O. Combustion of 5g of this compound produced9.99g CO2 and 4.09g H2O . What is the empirical formula of the unknown compound?

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Chemistry

05/17/19

Consider the following reaction

Consider the following reaction:2c4h10(g)+13o2(g)→8co2(g)+10h2o(g)Suppose you are given 3.0 moles of Butane, C10. How many moles of O2 would you need?

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Organic Chemistry

05/16/19

Doubt regarding organic chemistry nomenclature.

Can you please tell the structures of the following compounds:1) 2,6dimethyl, 3ethyl 5(1-methylethyl) octane2) 4,5 dimethyl,4 -ethyl decane

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Chemistry

05/13/19

Thermos chemistry-enthalpy question

The value of delta H• for the reaction below is -790kJ. The enthalpy change accompanying the reaction of 0.95g of A is ------kJ. 2S(s)+3O2(g)--> 2SO3Answer is 23 but I chose 11.7 because(Here... more

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Chemistry

05/13/19

HELP HEAT COMBUSTION CHEM

A 2.223 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of the calorimeter and its contents increase from 23.37 °C to 29.52°C. The heat capacity (calorimeter... more

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Chemistry

05/13/19

Titration & PH?

Calculate the molarity of 35.0 ml of H2SO4 titrated to the equivalence point with 36.6 mL of 3.00 M NaOH

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Chemistry Organic Chemistry

05/10/19

Name the product(s) that are produced and classify the reaction?

1-chlorobutane reacts + sodium hydroxide solution → type of reaction: (addition, substitution, elimination?)

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Chemistry Organic Chemistry

05/10/19

Name the product(s) that are produced and classify the reaction?

hydrogen bromide + pent-2-ene → type of reaction: (addition, substitution, elimination?)

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Chemistry

05/08/19

How many isomers of C4H6O are there?

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Chemistry Stoichiometry chemistry

05/08/19

How do i find the excess reactant of Zn + 2 HCl = ZnCl2 + H2? Given: 4.3 mol Zn and 7.6 mol HCl

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Chemistry

05/07/19

Determine the theoretical yield of kcl of you start with 34.5g of k2co3

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Chemistry

05/07/19

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Chemistry

04/24/19

limiting reagents

hydrogen gas can be produced from reacting hydrochloric acid with zinc. if 12.31 g of zinc are reacted with 17.15 g of HCl, which is the limiting reagent.

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Chemistry

04/24/19