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A solution was prepared by mixing 10.00mL of a solution containing element X with 5.00mL of a standard, whose concentration was 8.24g/mL as well as diluting to 50mL. This solution was examined and the instrument reply for the unknown was 1.69 times the signal due to the standard. In a separate experiment, it was found that for equal concentrations of element X as well as the standard the response for element X was 0.930 times intense as the standard. Explain what is the concentration of element X in the unknown expressed as g/mL.
find the molecular weight of as4o10 ?a.316 gmolb.460 gmolc.90.1 gmold.235
Metal X was plated from a solution containing cations of X. The passage of 48.25 C deposited 31 mg of X on the cathode. What is the mass of X (in grams) per mole of electrons.
Suggest a reason why the equilibrium between succinic acid and acetic anhydride lies on the side favoring formation
A vitamin C tablet was dissolved in 50.0 mL of distilled water, and then titrated with 0.0100 M KIO3; 16.57 mL of KIO3 solution was needed to reach the endpoint. Calculate the grams of vitamin C were in the tablet
if 4.00 ml of 0.0250 m cuso4 is diluted to 10.0 ml with pure water what is the molar concentration of the copper ii
In metallic magnesium what fraction of the molecular orbits restricted in the valence band plus the conduction band are in use by electrons
We know Pro can interrupt an a-helix, chemically, do you think it will cause any unusual problems in the determination of, angiotension II sequences? Explain.
biacetyl the flavoring that makes margarine taste just like butter is extremely stable at room temperature but at
Which of the following pairs of molecules is listed in order of decreasing net dipole moment (from more polar molecule to less polar molecule)
A solution is prepared by adding 34.5 g of Ca(OH)2 and 15.l3g of KOH to 1500ml volumetric flask and adding water to the mark. What is [OH-],[H30+],[pH]
How to do I calculate the pH of original buffer given mass of NaC2H3O2*H2O (FW =136 g/mol) = 3.507 g
Using the equation E0cell = E0cathode - E0anode, and the reference value of E0 for Cu(II)/Cu(s) for the role that copper plays in this overall cell reaction, determine the value of the standard potential for the half-reaction Zn2+(aq) + 2e- -> Zn(..
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