Questions and answers by

Ceamus Angelina

Questions (49)

Phosphorus pentachloride reacts to form phosphorus trichloride and chlorine gas when heated. A 2.00 liter vessel contains 0.020
1. 1 answer
2. 970 views
A 10.0 L vessel contains 0.0015 moles carbon dioxide and 0.10 moles of carbon monoxide. A 5.00 gram sample of carbon is added
1. 0 answers
2. 695 views
A 50.0 L reaction vessel contains 1.00 moles of nitrogen gas, 3.00 moles of hydrogen gas and 0.500 moles of ammonia gas. Explain
1. 0 answers
2. 662 views
At 1200 K a gaseous mixture contains 0.30 moles of carbon monoxide, 0.10 moles of hydrogen, 0.20 moles of water vapor and 0.059
1. 1 answer
2. 774 views
Consider the equilibrium: H2O(l) + HC2H3O2 ⇌ H3O+ + C2H3O2-( All species are aqueous) Why will the addition of NaOH to a
1. 1 answer
2. 3,279 views
Consider the hypothetical reaction: A + B + heat ⇌ C + D(All species are in the gaseous phase) What will happen to the
1. 1 answer
2. 1,542 views
A reaction of importance in the formation of smog is that between ozone and nitrogen monoxide described byO3(g)+NO(g) -->
1. 2 answers
2. 1,838 views
A reaction of importance in the formation of smog is that between ozone and nitrogen monoxide described byO3(g)+NO(g) -->
1. 1 answer
2. 957 views
The rate constant for the reaction is 0.710 M–1·s–1 at 200 °C.A ---> products If the initial concentration of A is 0.00390
1. 1 answer
2. 1,497 views
The rate constant for the rxn of hydrogen reacting with iodine to form hydrogen iodide is 2.7 X 10^-4 L/mol*s at 600. K and 3.5
1. 1 answer
2. 603 views
Radioactive iodine-131 decays (beta emitter) to form Xenon-131. Iodine-131 has a half-life of 8.07 days. If a thyroid gland
1. 2 answers
2. 1,109 views
The half-life of the following first order reaction is 231 seconds. What percent of the original concentration of nitrite ion
1. 1 answer
2. 603 views
The following reactions is a first order reaction with respect to nitrite ion and its rate constant is 0.0030/s. In a solution
1. 1 answer
2. 762 views
Consider the decomposition reaction: AB(g)-->A(g)+B(g). The rate law for the reaction is: rate=k[AB]^2, where k=0.00846 M^-1
1. 1 answer
2. 666 views
Compound Y+ K2Cr2O7 ---> C6H12O2What is compound Y?
1. 1 answer
2. 445 views
Determine a possible Lewis Structure for each of the two compounds X and Y, given the following information:Compound X contains
1. 2 answers
2. 782 views
What makes genre analysis an important intellectual exercise?
1. 1 answer
2. 443 views
What is the chemical reaction for:The reaction of phenol and 1-propanol
1. 2 answers
2. 432 views
What is the chemical reaction for:The oxidation of methanol
1. 2 answers
2. 739 views
What is the chemical reaction for:The reaction of propanoic acid and 1-butanol
1. 0 answers
2. 458 views
What is the chemical reaction for:The reaction of bromine with 2-pentene
1. 1 answer
2. 638 views
What is the chemical reaction for:The oxidation of 2-pentanol
1. 1 answer
2. 616 views
An aqueous sodium salt (NaCnH2n+1O3) solution has an osmotic pressure of 2.041 atm when 1.068 g of the salt are dissolved in
1. 1 answer
2. 808 views
A solid nonelectrolyte with a mass of 11.32g is dissolved in 115.00g of water. The observed freezing point of the solution
1. 1 answer
2. 596 views
How big of a band on a gel would you expect to see for the 41-repeat allele?
1. 0 answers
2. 384 views
If your mom had alleles containing 18 and 21 repeats and your dad had alleles containing 18 and 24 repeats, what is the change
1. 0 answers
2. 465 views
If, on your gel, you saw only one band, how would you describe your genotype?
1. 0 answers
2. 407 views
How many repeats do you find in the most common D1S80 allele?
1. 0 answers
2. 481 views
A volatile liquid sample is placed in an Erlenmeyer flask that has been sealed except for a tiny hole that allows vapor to
1. 1 answer
2. 871 views
Consider the following properties of a particular substance:melting point: -7.2 degrees C boiling point: 58.8 degrees C heat of
1. 1 answer
2. 771 views
Why can you not use human DNA polymerase when you perform PCR?
1. 1 answer
2. 807 views
Name a specific region of a plasmid vector that is helpful in DNA cloning.Is there a specific article that explains the answer?
1. 0 answers
2. 451 views
A metal forms an oxide with the general formula MO2 with a deltaHf=-580.7 kJ/mol. Using the Born-Harber Cycle and the following
1. 1 answer
2. 859 views
How many alleles for a specific gene can any single gamete contain?
1. 1 answer
2. 386 views
Which technique or device is used to determine probabilities of allele combinations in offspring?
1. 1 answer
2. 371 views
What volume range is a P20 (micropipette) useful for?
1. 0 answers
2. 376 views
Which rule of probability is used for mutually exclusive outcomes?
1. 1 answer
2. 535 views
Assign n_hi for each line in the Balmer series of a hydrogen atom.
1. 1 answer
2. 415 views
Calculate the longest wavelength that a line in the Balmer series could have.
1. 1 answer
2. 641 views
What is the shortest possible wavelength for a line in the Balmer series?
1. 2 answers
2. 3,172 views
What is the smallest metal in Group 4A? Is it Carbon?
1. 1 answer
2. 358 views
What is the element whose 2+ cation's highest energy electron has the following set of quantum numbers, n=5, l=2, ml=1, and
1. 5 answers
2. 714 views
What is the element whose 4+ cation has the following set of quantum numbers, n=3, l=2, ml=0, and m.s=+1/2 for its highest
1. 1 answer
2. 805 views
What is the element that forms a 3+ ion with electron configuration [Ar] 3d^6?I know that [Ar] 3d^6 is Fe, but how can I find an
1. 5 answers
2. 2,417 views
What is the period 6 element that forms a 4+ ion with a pseudo-noble gas configuration?How can I find the solution? Thanks
1. 1 answer
2. 708 views
What is the period 3 element whose 2+ ion is isoelectronic with neon?How can I find the solution? Thanks
1. 1 answer
2. 1,389 views
What is the Period 4 element with highest energy level filled.My answer is Kr, but I'm not entirely sure. Is this correct?
1. 1 answer
2. 1,533 views
What is the element whose d sublevel is filled and its highest energy electron has the set of quantum numbers: n=4, l=0, ml=0,
1. 1 answer
2. 615 views
Carbon dioxide gas and liquid water form solid glucose (C6H12O6) and oxygen gas during photosynthesis. Chlorophyll absorbs light
1. 1 answer
2. 3,469 views

Answers (6)

i know how to do the first part, I just need the second part of the problem.
So I'm thinking to start with the PV=nRT with the given pressure, volume, and temperature then find how many moles there are in compound X. After that divide the given mass of the compound (3.267 grams) by the calculated number of moles to find the molar
***** not methanol, it's methanal *****
This makes total sense. The answer in fact is Co. So one would need to think the way you described to find Co
then what is it?
Is it Ge?

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