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In Rh disease of the newborn, maternal antibodies enter fetal circulation and destroy the red blood cells of the fetus. A mother with type O blood has anti-A and anti-B antibodies, but may have a dozen type A children without any problem at all. Explain why.
Everyone should have a tetanus booster shot every 10 years. That is what we often call a "tetanus shot". Someone who sustains a soil-contaminated injury should also receive a tetanus booster (if none in the past 10 years.) But someone who has symptoms of tetanus should get TIG, tetanus immune globulin. Explain the difference, and why TIG is so important
the emission line used for zinc determinations in atomic emissionspectroscopy is 214 nm. if there are
The enthalopy of cumbustion benzoic acid C6H5COOh is commonly used as the standered for calibrating constant volume bomb calorimeters.
Assuming such a situation, explain the problems that would result from the use of the equations in their present form. What modifications would you make to give accurate results when using such an unknown
Forecast whether an aqueous solution can be made up to have the subsequent concentrations or whether a chemical reaction must occur: (a) 0.25 M CH3COONa and 0.15 M HI
What is [Mn2+] when Ecell reaches 0.055 V. What are the equilibrium concentrations of the ions
Calculate the OH- concentration of a solution that has [H3O+] of 3.5 x 10 -10M. Is the solution acidic, base, or neutral? report answer in two decimal places.
What is the rate constant of a first-order reaction that takes 288 seconds for the reactant concentration to drop to half of its initial value?
The d-d transition in [Ti(H2O)6]+3(aq) produces an absorption maximum at 500 nm. What is the magnitude of ? for this complex in kJ/mol? HINT: E = h ? and c = ?
The atmospheric pressure is 762 mmHg. The temperature of the experiment is 27 C. Define how many moles of hydrogen have been liberated, as well as what is the mass of the magnesium that reacted
Cesium ions are added to flood the flame with electrons. It needs to be in a large concentration, larger than what is being measured.
what is the molality of a solution in which 3.0 moles of NaCl is dissolved i 1.5Kg of water?
calculate the vapor pressure of a solution of glycerol of 265ml in 3.80x10^2ml of H2O at the normal boiling point of H2O
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