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What are the Bruins and the Wings lines?
What are the Bruins and the Wings lines?
1 AnswerHockey1 decade agoHow to burn avi video onto DVD with subtitles?
I want to burn avi video with subtitles onto a DVD using Nero. I tried it once but it burned without the subtitles. Also, the subtitles are in the same name as the avi file.
7 AnswersSoftware1 decade agoGalvanic Cells -- Copper and Unknown Metal?
Calculate the potential (at 25° C) for the galvanic cell:
Cu | CuSO4(0·050M) || CuSO4(1·00M) | Cu
What is Ecell?
The anode half-cell was replaced with an unidentified metal electrode (M) and 1.00 M M2+ solution.
M | M2+(1·00M) || CuSO4(1·00M) | Cu
If Ecell = 0.78 V, calculate the value of E° for:
M2+ + 2e− ⇌ M
find E° ?
1 AnswerChemistry1 decade agoAcetic Acid - Sodium Acetate Buffer?
pH is 4.8. Assume that the buffer is made up by mixing volumes of 0.100 M acetic acid and 0.100 M sodium acetate solutions.
Calculate the volume of 0.100 M acetic acid required to prepare 60.0 mL of a buffer of pH 4.8.
1 AnswerChemistry1 decade agoTitration of an Acid with a Strong Base?
A 10.00 mL sample of a solution of a monoprotic acid (HA) required 28.84 mL of 0.1000 M NaOH to titrate it to the equivalence point.
What was the initial concentration of the acid?
ANSWER: [HA] = 0.2884 M
Calculate the pH of a strong acid of this concentration. ANSWER: 0.5400
The pH of the initial solution was measured and found to be 3.34.
Is the acid "weak" or "strong"?
Calculate the acid dissociation constant.
Ka = ????
I dont understand how to find the Ka
1 AnswerChemistry1 decade agohow to integrate using substitution and integration by parts?
integral[cos(sqrt(x))dx]
1 AnswerMathematics1 decade agoNon-bonding Valence Electron Pairs -- Lewis Diagrams ?
Draw the "correct" (or best) Lewis structure for each of the following molecules (or molecular ions).
PO4^3- ion -- How many lone-pairs of electrons are on the central P atom?
BrF4- ion -- How many lone-pairs of electrons are on the central Br atom?
SbH3 molecule -- How many lone-pairs of electrons are on the central Sb atom?
1 AnswerChemistry1 decade agofinding energy released in a rxn?
When a 15.1 g sample of ethyl alcohol ( molar mass = 46.1 g/mol) is burned, how much energy is released as heat?
1 AnswerChemistry1 decade agoprinciple quantum number?
An excited H atom emits light with a frequency of 1.141x10^14 s^-1 to reach the n=4 energy level. In what principle quantum number did the electron originally reside?
2 AnswersPhysics1 decade agoFind a point on the curve y= 4-X^2 whose tangent is parallel to y= -x?
Find a point on the curve y= 4-X^2 whose tangent is parallel to y= -x. Is there more than one such point? If so find all other points with this property.
2 AnswersMathematics1 decade agoSpecific Heat Capacity?
A 13.5-g sample of an unknown metal is heated to 93.5°C and is placed in a perfectly insulated container along with 186.g of water at an initial temperature of 20.40°C. After a short time the temperature of both the metal and water become equal at 24.65°C.
The specific Heat Capacity of water is 4.18 J/g/K in this temperature range.
What is the specific heat capacity of the metal?
Chemistry1 decade agoDegree 3 polynomial has at least one root?
Explain why a polynomial of degree 3 has at least one root.
8 AnswersMathematics1 decade ago