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The density of a 0.448-m aqueous solution of K2CrO4 is 1.063 g/mL. What is the molarity (M) of this solution? The molar mass if K2CrO4 is 194.2 g/mol.
How many grams of sodium formate, NaCHO2, would have to be dissolved in 1.1 L of 0.20 M formic acid (pKa 3.74) to make the solution a buffer for pH 3.82
When Fe(NO3)3 is dissolved in water, hexaaquiron(III) ions, Fe(H2O)6 3+, forms. Fe(H2O)6 3+ ions hydrolyze in aquesous solution accoring to the equation given below.
calculate the grams of deposit in the following situations: a) In the form of Tl2O3 (solid) on an anode? (b) as the element Tl (solid) on a cathode?
What is the boiling point of a mixture composed of 85 g HOCH2CH2OH (ethylene glycol) and 125 g H2O? The boiling point elevation constant for H2O is 0.512 °C/m.
Which plot would not have a slope from which the indicated quantity for the reaction A ? Product(s) could be determined
What is the formal charge on the singly bonded oxygens in the Lewis Structure for the carbonate ion
In the determination of the specific heat of a metal, why is it desirable to use the minimum volume of water that will allow immersion of the metal sample
Balance the following redox reaction that occurs in a acidic solution using the half reaction method. Show work Pb(s) + PbO2(s) + H2SO4(aq) ---> PbSO4(s)
what is the pH of a solution made by adding water to .015 moles of HI untill the volume is 2600. mL?
Problem- 1) If the object is closer to the lens than the focal point, the object appears to be larger with a magnification larger than 1.
Problem- Unknown soda ash sample of .5097g this sample is dissolved in 25mL water. After titrating this sample using HCl the concentration of Na2CO3 was determined to be .1451M. What is the percent composition OF Na2Co3 in the soda ash sample
A galvanic cell consists of a Mg electrode in a 1.0 M Mg(NO3)2 solution and a Ag electrode in a 1.0 M AgNO3 solution. Calculate the standard emf of this cell at 25 °C
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