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a. The original sample is not pure, but is contaminated with athermally stable compound. Will the reported mole ratio of CaO toCO2 be too high, too low, or unaffected? Explain.
b. Spattering does occur and some of the sample is lost ontothe laboratory bench. Will the reported mole ratio of tin to oxygen be too high, too low, or unaffected? Explain.
You prepare a solution from 10.0 mL of 0.100 M MOPS buffer (3-morpholinopropane-1-sulfonic acid) and 10.0 mL of 0.078 M NaOH. Next, you add 1.00 mL of 7.81 × 10-6 M lidocaine to this mixture
How many grams of CaH2 are needed to generate 19.0 L of H2 gas if the pressure of H2 is 780. torr at 15 C?
illustrate the decomposition of arenediazonium salts using a reaction mechanism and briefly explain why the decomposition produced formed is so reactive.
dissolve CsI in liquid HF dipole-dipole forces dispersion forces hydrogen bonds ion-dipole forces ion-ion interparticle forces metallic bonds. melt potassium metal dipole-dipole forces dispersion forces hydrogen bonds ion-dipole forces ion-ion interp..
Solid silicon and solid magnesium chloride form when silicon tetrachloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation. Include all of the appropriate notations.
The weight of the purified caffeine is often much lower than the weight of the crude caffeine. Explain the reason why.
What is the basic structure of phosphatidyl cholines and how do they work as emulsifiers? Why is there so much research interest in phosphatidyl cholines and similar compounds in heart research?
It should shift to the right because the removal of a component causes the equilibrium to shift to the side from which the component was removed.
consider the hypothetical elements x y and z with the following lewis formulas. x with seven electron dots around it y
What is the equilibrium concentration of Cl at 1000 ? What is the equilibrium concentration of COCl2 at 1000 ?
What is the average mass(in grams) of a flourine atom if Flourine has an atomic weight of 18.998 amu
Calculate the enthalpy change of the reaction for per mole potassium carbonate. Assume the specific heat of all solutions are 4.18 J/g°C and all solutions have a density=1.0 g/ml (A:-13.3 KJ) show all calculations please
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