A student found that a water sample contained 3.65x10^-3g of arsenic. How many moles of arsenic is this?
+128731 The molar mass of arsenic = 74.92160 g/mol
To calculate moles, we have
grams of substance / moles of substance = 74.92160 g/mol
3.65x10^-3 g / moles of substance = 74.92160 g/mol
moles of substance = 3.65x10^-3 g/ 74.92160 g/mo =
0.0000487175927903 moles =
about 4.87 x 10^(-5) moles
+128731 The molar mass of arsenic = 74.92160 g/mol
To calculate moles, we have
grams of substance / moles of substance = 74.92160 g/mol
3.65x10^-3 g / moles of substance = 74.92160 g/mol
moles of substance = 3.65x10^-3 g/ 74.92160 g/mo =
0.0000487175927903 moles =
about 4.87 x 10^(-5) moles
