is 27.9% nickel by mass. How many kilograms of this ore would you need to dig up to have 10.0 g of nickel

Question

is 27.9%27.9% nickel by mass. How many kilograms of this ore would you need to dig up to have 10.0 g10.0 g of nickel

Answer 1

To calculate how many kilograms of the ore you would need to dig up to have 10.0 g of nickel, you can use the formula:

mass of ore = (mass of desired element) / (percentage of element by mass)

In this case, you want to find the mass of ore that would contain 10.0 g of nickel, which has a percentage of 27.9%. So, you can plug in the values and solve for the mass of ore:

mass of ore = (10.0 g) / (27.9/100) mass of ore = (10.0 g) / 0.279 mass of ore = 35.9 kg

So you would need to dig up 35.9 kg of the ore to have 10.0 g of nickel.