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A. How many milliliters of a 0.72 MHCl solution do you need to obtain 0.0032 mol of HCl?
B. A flask containing 470 mL of 0.50 M H2SO4 was accidentally knocked to the floor.
How many grams of NaHCO3 do you need to put on the spill to neutralize the acid according to the following equation?
H2SO4(aq)+2NaHCO3(aq)---->Na2SO4(aq)+2H2O(l)+2CO2(g)
what is the dosage of quinine when a 170lb adult takes a 400.0 mgtablet? Express in ug quinine per kg of body weight.
when aqueous solutions of lead ii ion are treated withpotassium chromate solution a bright yellow precipitate of leadii
Depict structures of the organic starting material as well as product formed for the reduction of vanillin acetate (4-formyl-2-methoxyphenyl acetate C10H10O4) by sodium borodeuteride (NaBD4) reduction.
What are the equilibrium concentrations of C6H5NH2, C6H5NH+3 , Cl-, H+, and OH- in an aqueous solution prepared by combining 50.0 mL of 0.0400 M C6H5NH+3 Cl- and 50.0 mL of 0.0100 M KOH? Kb = 7.4 x 10-10 for C6H5NH2.
Name the sub-atomic particles found within the atom in an element.
How many moles of solute are present in each of the following solutions. (a) 145mL of 0.25M NaHCO3 (b) 631.0mL of 2.25M H2SO4
A sample of 2.0 grams of ammonia was placed in a 25.0 ml container and heated to 300 degrees C. After equilibrium was reached, the concentration of hydrogen was 1.58 moles/liter. What is the value of the equilibrium constant at 300 degrees C for t..
If an impure sample of table salt that weighed 0.8421 g, while dissolved in water and treated with excess AgNO3, formed 2.044 g of AgCl. Explain what is the percentage of NaCl in the impure sample
Explain what magnetic field strength must be applied for C-13 spin transitions to occur at 90 MHz? magnetogyric ratio for C-13 = 6.728x107 rad.T-1.s-1
A 757 mL gas sample at STP is compressed toa volume of 202 mL, and the temperature isincreased to 30 degrees C. What is the new pressureof the gas in Pa?
Using the Debye-Hucket equation, calculate the activity coefficients for the acidic and basic forms of bromocresol green, HX- and X2-, for a solution with an ionic strength of u=0.1M.
Discuss the various phases of matter and their physical and chemical changes and define atomic number, mass number, isotopes, and organize the elements by using the periodic table.
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