Questions and answers by

Sarah H

Questions (28)

A linear function f(x) and its inverse f-1(x) intersect at the point (5,5). Create a function, f(x) that would satisfy this
1. 1 answer
2. 476 views
A linear function f(x) and its inverse f-1(x) intersect at the point (5,5). Create a function, f(x) that would satisfy this
1. 1 answer
2. 496 views
Line A passes the points (-5,-13) and (1,-1). Line B runs perpendicular to Line A and passes the points (6,5). Find the equation
1. 3 answers
2. 558 views
so i've worked on this some more, now I am asking if someone will plz check my work2 half cells in a galvanic cell consist of
1. 1 answer
2. 1,562 views
I have no idea what I'm doing here, please help.2 half cells in a galvanic cell consist of one iron Fe(s) electorde in a
1. 1 answer
2. 795 views
Hi, please check my work:In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The
1. 1 answer
2. 547 views
what is the common name for ethane and propene?I think propene is propylene but i don't know about ethane.
1. 4 answers
2. 680 views
Hi, please check my work:In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The
1. 1 answer
2. 849 views
Posted by Sarah H on Friday, May 23, 2008 at 8:10pm.Hi, please check my work: In an experiment, 23.4 g of FES are added to
1. 1 answer
2. 622 views
Hi, please check my work:In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The
1. 1 answer
2. 525 views
Hi, please check my work:In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The
1. 0 answers
2. 525 views
Determine the mass of carbon monoxide that is produced when 45.6 g of methane CH4 react with 73.2 g of oxygen gas, O2. The
1. 0 answers
2. 953 views
#1) how many atoms are represented by 2.0 mol of carbon? I think 12.01 x 10^23#2) Calculate the # of atoms of each element
1. 1 answer
2. 503 views
The signs of DG, DH, and DS at 25°C are shown in the table below for three reactions.Reaction DG DH DS I - + + II - - + III - -
1. 1 answer
2. 1,189 views
Chromium can be electroplated from an aqueous solution containing sulfuric acid and chromic acid, H2CrO4. What current is
1. 3 answers
2. 2,120 views
Consider the following reaction,A <===> B in a 1.00L container. At 1.77°C, the molar concentrations of A and B, respectively,
1. 1 answer
2. 451 views
A liquid is heated from 33.96°C to 104.32°C. The vapor pressure increases from 23.54torr to 984.35torr. What is the heat of
1. 1 answer
2. 1,105 views
If Q=.61259, what is the formula to convert to pQ? Is it pQ=lnQ?
1. 1 answer
2. 365 views
n = 6 and E° = 0.011v for a redox reaction with Q = 7.03 x 10-1. Calculate E. Assume T = 298.15K.So I did E=E°-(RT/nF)lnQ
1. 1 answer
2. 419 views
Consider a cell based on the following reaction:GeO(s) + H2O(l) + 2 Ag+(aq) ===> GeO2(s) + 2 H+(aq) + 2 Ag(s) If [Ag+] = 1 M, at
1. 1 answer
2. 969 views
What is n, the number of moles of electrons transferred, in the following reaction?2 MnO4-(aq) + 16 H+(aq) + 10 Cl-(aq) ===> 2
1. 5 answers
2. 2,181 views
A current is passed through two cells connected in series. The half-reactions occurring at the cathode of each cell areTcO4-(aq)
1. 3 answers
2. 708 views
Neptunium-239 has a half-life of 2.35 days. How many days must elapse for a sample of 239-Np to decay to 1.00% of its original
1. 1 answer
2. 5,159 views
Consider the following reaction, A <===> B in a 1.00L container. At 1.77°C, the molar concentrations of A and B, respectively,
1. 0 answers
2. 417 views
n = 6 and E° = 0.011v for a redox reaction with Q = 7.03 x 10-1. Calculate E. Assume T = 298.15K.How do I set this equation up?
1. 1 answer
2. 393 views
Which of the following conditions MUST be true for the entropy of a pure solid to be zero?a) T must be 0 K b) The solid must be
1. 3 answers
2. 721 views
Which provides the greatest increase in entropy for a mole of substance?a)Water melts at 0°C. b)Liquid water is heated from
1. 0 answers
2. 665 views
What is the number of nucleons in 236-U2+?
1. 1 answer
2. 354 views