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Get college assignment help at uniessay writers all isomers for C4h7Br,c3h602

If a bottle of nail polish remover contains 181 of acetone,

If a bottle of nail polish remover contains 181 of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788 g/mL

How many liters of hydrogen gas are collected over water at

How many liters of hydrogen gas are collected over water at 20°C and 725 mmHg when 0.75 g lithium reacts with water? Aqueous lithium hydroxide also forms.

The electron in a hydrogen atom is excited to a 4d-orbital.

The electron in a hydrogen atom is excited to a 4d-orbital. Calculate the energy of the photon released if the electron were then to move to each of the following orbitals: (a) 1s; (b) 2p; (c) 2s; (d) 4s. (e) If the outermost electron in a potassium atom were excited to a 4d-orbital and then fell to the same orbitals, describe qualitatively how the emission spectrum would differ from that of hydrogen (do not do any calculations). Explain your answer.

net ionic equation for sodium arsenic and barium chloride

net ionic equation for sodium arsenic and barium chloride

For the reaction, calculate how many grams of the product form

For the reaction, calculate how many grams of the product form when 14.4 of completely reacts. Assume that there is more than enough of the other reactant.

For the reaction below, Kp = 1.16 at 800.°C. CaCO3 (s)

For the reaction below, Kp = 1.16 at 800.°C. CaCO3 (s) CaO (s) CO2 (g) If a 41.3-gram sample of CaCO3 is put into a 10.0-L container and heated to 800.°C, what percent of the CaCO3 will react to reach equilibrium? A) 16.5 % B) 31.9 % C) 42.8 % D) 100.0 % E) none of these

Calculate the solubility of Ca3(PO4)2(s) (Ksp = 1.3 × 10-32) in

Calculate the solubility of Ca3(PO4)2(s) (Ksp = 1.3 × 10-32) in a 0.037 M Ca(NO3)2 solution. A) 8.0 × 10^-15 mol/L B) 1.6 × 10^-14 mol/L C) 3.0 × 10^-16 mol/L D) 6.4 × 10^-29 mol/L E) none of these

You have 100.0 mL of a solution of hydrochloric acid that

You have 100.0 mL of a solution of hydrochloric acid that has a pH of 3.00. You add 100.0 mL of water to this solution. What is the resulting pH of the solution? A) The pH = 5.00 (the average of 3.00 and 7.00). B) The pH = 10.00 (3.00 7.00 = 10.00). C) The pH = 3.00 (water is neutral and does not affect the pH). D) None of the above is correct, but the pH must be greater than 3.00. E) None of the above is correct, but the pH must be less than 3.00.

The value of Kp for the reaction 2 NO2 (g) ⇔

The value of Kp for the reaction 2 NO2 (g) ⇔ N2O4 (g) is 1.52 at 319 K. What is the value of Kp at this temperature for the reaction 1/2 N2O4 (g) ⇔ NO2 (g)?

The value of H° for the reaction below is -126 kJ.

Get college assignment help at uniessay writers The value of H° for the reaction below is -126 kJ. The amount of heat that is released by the reaction of 25.0 g of Na2O2 with water is __________ kJ.

What volume does 22.4 moles of hydrogen gas occupy at 0°C

What volume does 22.4 moles of hydrogen gas occupy at 0°C and 1.00 atm? A) 0.0821 L B) 1.00 L C) 22.4 L D) 184 L E) 502 L

Rank F, C, O, B from largest to smallest radius

Rank F, C, O, B from largest to smallest radius

you dissolve .435g of nAOH IN 2.OO L of a solution

you dissolve .435g of nAOH IN 2.OO L of a solution that has [H2PO4-]=[HPO42-]= .132M what was the ph of the solution before adding naoh? after adding naoh?

the pressure by mass of bicarbonate (HCO3) in a certain alker-seltzer

the pressure by mass of bicarbonate (HCO3) in a certain alker-seltzer produced is 32,5 percent. Calculate the volume ofCO2 generated (in milliliters) at 37 degrees and 1.0 atm when a person ingests a 3.29g tablet

a reaction produces 0.891 moles of H2O. How many molecules were

a reaction produces 0.891 moles of H2O. How many molecules were produced?

Whyshould reflux of the microscale reaction mixture be gentle, with the

Whyshould reflux of the microscale reaction mixture be gentle, with the condensation ring remaining close to the surface of the liquid in the test tube

The decomposition of iodoethane in the gas phase proceeds according to

The decomposition of iodoethane in the gas phase proceeds according to the following equation. C2H5I(g) ? C2H4(g) HI(g) At 660. K, k = 7.2 10-4 s-1; at 720. K, k = 1.7 10-2 s-1. What is the rate constant for this first-order decomposition at 325°C? If the initial pressure of iodoethane is 894 torr at 245°C, what is the pressure of iodoethane after three half-lives?

the pressure by mass of bicarbonate (HCO3) in a certain alka-seltzer

the pressure by mass of bicarbonate (HCO3) in a certain alka-seltzer produced is 32.5 percent. Calculate the volume of CO2 generated (in milliliters)at 37degrees celcius and 1.00 atm, when a person ingests a 3.29-g tablet

0.514 g of a gas occupies 150.0mL at 23.0 degrees celsius

0.514 g of a gas occupies 150.0mL at 23.0 degrees celsius and 755 torr. wha is he molar mass? what gas is it?

How many moles of cations are in 1.80 mol of {rm{K}}_2

How many moles of cations are in 1.80 mol of {rm{K}}_2 {rm{SO}}_4

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