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Calculate the mass of 35.58 cm of zinc (density = 7.000 g/cm3). Give your answer to...
The density of polonium metal is 9.2 g/cm. If the extended lattice of polonium exhibits a simple cubic unit cell, estimate the atomic radius of polonium. Radius pm Submit Answer Try Another Version 10 item attempts remaining
CHEMWORK Determine the number of moles for each compound. (Enter your answer to four significant figures.) Compound magnesium phosphate 366.8 g calcium nitrate potassium chromate 473.1 g dinitrogen pentoxide 376.6 g Mass Moles 201.7 g Submit Show Hints Try Another Version 9 item attempts remaining Submit Answer
When a solution of NaOH is neutralized by hydrochloric acid, the solution gets hot. Calculate the temperature change of the solution (in K). Mass of combined solution = 205 g Heat change of the solution = 4510 J Specific heat capacity of the solution = 4.18 J/g.K Give your answer to three significant figures. K Submit Answer Try Another Version 10 item attempts remaining
[References Approximately 0.15 g zinc(II) hydroxide, Zn(OH), (8), dissolves per liter of water at 20°C. Calculate Ky for Zn(OH),(3) at this temperature. K- Submit Answer Try Another Version 6 item attempts remaining
CHEMWORK What is the mass percent for each element in 1 mole of barium nitrate? (Enter your answer to four significant figures.) bariumF nitrogen oxygen Submit Show Hints Submit Answer Try Another Version 3 item attempts remaining
The solubility of Ni(OH)2 is measured and found to be 3.91*10-4 g/L. Use this information to calculate a Kp value for nickel(II) hydroxide. Ksp = Submit Answer Try Another Version 3 item attempts remaining Solid zinc sulfide and solid zinc phosphate are in equilibrium with a solution containing 1.30x10-2 M potassium phosphate. Calculate the concentration of sulfide ion present in this solution. (sulfide] = M Submit Answer Try Another Version 3 item attempts remaining
The answer is not 1.72 Review | Constants ! The density of titanium is 4.50 g/cm Part A What is the edge length (in cm) of a titanium cube that contains 2.99 x 10titanium atoms? Express your answer to three significant figures. AEO OE? cm Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
Phosphoric acid is usually obtained as a 85% phosphoric acid solution. Îfit is 15.00 M, what is the density of this solut onl what ist molli Density Molalitym g/mL Submit Answer Try Another Version 8 item attempts remaining Phosphoric acid is usually obtained as a 85% phosphoric acid solution. Îfit is 15.00 M, what is the density of this solut onl what ist molli Density Molalitym g/mL Submit Answer Try Another Version 8 item attempts remaining
The solubility of the ionic compound M2X3, having a molar mass of 269 gimol,is 3,60 x 10 g/L. Calculate the Ksp of the compound. Ksp Submit Answer Try Another Version 5 item attempts remaining
Part C Iron has a density of 7.86 g/cm (1 cm = 1 mL). Calculate the volume (in dL) of a piece of iron having a mass of 4.25 kg . Note that the density is provided in different units of volume and mass than the desired units of volume (dL) and the given units of mass (kg). You will need to express the density in kg/dL (1 cm = 1 mL) before calculating the volume for the piece of...