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Describe the role of Macrophage as antigen presenting cell in adaptive immune system
which indicator is more accurate phenopthalein or methyl orange? why
Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision: qV = 26.434 kJ/g. When a 2.088 g sample of C6H5COOH(..
The normal boiling point of ch3oh is 64.7C and its molar enthalpy of vaporization is deltaH=71.8kj/mol Calculate the value of deltaS when 1.50 mol of CH3OH(l) is vaporized at 64.7C.
molecular equation, complete ionic equation, and net ionic equation for: Sodium carbonate + sulfuric acid Cadmium chloride + sodium hydroxide Hydrochloric acid + sodium hydroxide Ammonium chloride + sodium hydroxide Sodium acetate + sodium hydroxi..
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions
The vapor pressure of water at 25 o C is 23.8 mm Hg. a. Write the balanced chemical equation. b. Calculate the mass (in grams) of zinc metal that was consumed in the reaction.
Of the several landfill alternatives, which are preventative? Which take up the least space? Explain
You are to prepare a buffer at a pH of 9.00 using 0.50 mol/liter HCN and 0.36 mol/liter NaCN. If you begin with 250.0mL of 0.36 mol/liter NaCN, how many liters of the HCN solution must be added to the NaCN to prepare the buffer
The figure shown below shows a typical titration curve for 0.1 M NaOH with 40 mL of 0.05M oxalic acid (H2C2O4). The first equivalent point is ~ at 9 .0 mL and the second equivalent point is at ~18 mL.
In Preparation of an alpha, beta-unsaturated ketone via Michael Addition + Aldol Condensation, why is water added to the reaction mixture during the isolation of the crude product
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..
a test tube containing a mixture of kcl kclo3 and mno2 having a total weight of 23.584 g was heated to compose the
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