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Problem- If you flip an unbiased green coin and an unbiased red coin five times each, what is the probability of getting four red heads and two green tails?
Determine the solution for the above problem express your work in detail
Use line notation to represent the electrochemical cells for each of the following overall redox reactions. Part A: Ni2+(aq)+Mg(s) Ni(s)+Mg2+(aq)
At 28 ^circ rm C the osmotic pressure produced by the solution was 0.138 rm atm. What is the molar mass of the protein?
Calculate the number of moles of hydrogen, oxygen and sulfur in a 100-g sample of a compound composed of the following: 2.1 grams hydrogen, 65.3 grams oxygen, and 32.6 grams sulfur.
According to molecular orbital theory, in the case of a carbon-carbon double bond, the carbon-carbon bonding electrons of higher energy occupy this molecular orbital.
Problem- What is the pH of a solution made by mixing 40.00 mL of 0.100 M HCl with 25.00 mL of .100 M KOH. Assume that the volumes of the solutions are additive.
Identify the unknown gas - Find the molecular formula of the compound
the trianglehfus of ethanol c2h5oh is 4.60kjmol. how many kilojoules are required to melt 24.5grams of ethanol at its
compute the mass of air in an air-filled tire and the also determine the mass of he in a helium-filled tire. suppose
Question- If a piece of silver is placed in a solution in which [Ag^+] = [Fe^2+] = 1.00 M at STP, what is Ecell for the following reaction
There are 3 different possible structures for dibromoethene molecule, C2H2Br2.One of them has no net dipole moment, but the other two do. Draw a Lewis strucutre for each isomer. Include H atoms.
What is the mole fraction of solute and the molal concentration for an aqueous solution that is 12.0% NaOH by mass
A solution containing 10.mmol of CO3^-2 and 5.0 mmol. Of HCO3- is titrated with 1.0M HCL What total volume of HCL must be added to reach the second equivalence point?
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