05/01/19

If a system has 30J of heat added to it, and it does 20J of work, what is the change in its internal energy?
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04/30/19

What is the chemical name of acetic acid?
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04/30/19

If a barometer at your home reads 768.2mm of Hg, what is the atmospheric pressure in atm? PLEASE SHOW WORK

If a barometer at your home reads 768.2mm of Hg, what is the atmospheric pressure in atm?
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04/30/19

What changes and results take place when an unsaturated organic hydrocarbon reacts with iodine solution?
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04/30/19

Which element has the chemical symbol V?
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04/30/19

Write IUPAC names for the following organic compounds?
1.) CH3CH2CH2CH2CH2CH=CHCH2CH32.) CH2---CH2---CH3 | CH3---CH2---C---CH3 | CH3 ... more
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04/30/19

Write IUPAC names for the following hydrocarbons that are communicated as condensed structural formulas?
1) CH3-CH2-CH2-CH2-CH32) CH2=CH-CH2-CH2-CH33) CH2=CH-CH2-CH3
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04/30/19

What is the reaction and the name of the salt of N-methylaniline + HCl?
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04/29/19

What is the reaction of tripropylamine + HCL?
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04/29/19

Which element has the chemical symbol Cl?
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04/29/19

What is the ionic and net ionic equation for Ba(NO3)2 + Ag2SO4?
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04/29/19

Why are the atomic orbitals called "orbitals" if an electron is not orbiting the nucleus?
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04/29/19

calculate the grams per liter of solid lead(II) phosphate (Ksp = 1.00e-54) that should dissolve in .560 M lead(II) nitrate solution
calculate the grams per liter of solid lead(II) phosphate (Ksp = 1.00e-54) that should dissolve in .560 M lead(II) nitrate solution
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04/29/19

what is Ksp for the saturated solution of silver phosphate?
a saturated solution is formed when a salt is added to water until equilibrium is established between the undissolved salt and its ions in solution. this process can be represented by the... more
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04/29/19

concentration of O2 at equilibrium
consider the following unbalanced equation at some constant temperature:CO2(g) CO(g) + O2(g) where K = 4.1 x 10^-6in an experiment, 5.8 mol of CO2 and 2.8 mol of CO are initially placed into a 1.0L... more
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04/29/19

calculate the ΔHrxn given three reactions
calculate the ΔHrxn to the correct number of significant figures for N2O (g) + NO2 (g) -> 3NO (g) given the following data: N2(g) + O2(g) -> 2NO(g) ΔH= +180.7 kJ 2NO(g) + O2(g) -> 2NO2(g)... more
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04/29/19

what is q when converting liquid water to ice?
what is the value of q, in kj, for the process in which 20.2 g of liquid water at 100 C is converted into ice at 0 C?
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04/28/19

What is the resulting volume given that ten cm3 of a two-molar solution of nitric acid is added to ten cm3 of a one-molar solution of calcium hydroxide?
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04/27/19

The decomposition of NH3 on a platinum surface is a zero order reaction. What time will be taken to reduce the concentration of Nh3 from 0.1 M to 0.064 M? K= 4*10^-3
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04/26/19

Which element has the electronic configuration 2, 8, 5?
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04/26/19

How many mg of PbI2 (Ksp = 1.4x10-8 ) will dissolve in 100. mL of 0.062 M AlI3?
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04/26/19

CHEMISTRY!! NEED HELP!
Calculate the mass % of a HCI solution that contains 44.2 g of HCI in a total of 1250g of solution.
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04/26/19

If a sample of a certain solution is determined to have a pH of 11.8 11.8 , what is the concentration of [ H 3 O + ] [H3O+] in the solution
Submit your answer in scientific notation and round off the significand (first number) of your answer to two decimal places.
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04/25/19

Mixture of H2...
A mixture of 1.00 g H2 and 1.00 g He is placed in a 1.00 L container at 27 Celsius. Calculate the partial pressure of each gas and the total pressure.
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04/25/19

Moles of He Question
A container at 1.00 atm of pressure is 22.4 L. The gas is at room temperature and there is a mixture of gases. 50% is He, 30% is Ne, and 20% is Ar. Approximately how many moles of He are in the... more
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