50 mL nitric acid, HNO3 is neutralized by 18.5 mL of 0.05M Calcium hydroxide, Ca(OH)2. (a) Write the balanced neutralization reaction. (b) Calculate the concentration of HNO3 used

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the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

i think its 100

i hope this !