a 9.84 oz ingot of unknown metal 102.1°fahrenheit is heated from 73.2° fahrenheit this requires 3.91kcal of energy. calculate the specific heat of the metal and determine its identity

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

am i too late?

explanation:

може ли да зареждате повече информация, моля