Chromel is an alloy of 90.% nickel and 10.% chromium by mass. Ho much chromel can be made from 5.0 mL of chromium (d=7.19g/mL)?

Answer 1

Let’s get the mass of chromium:

5.0 ml x 7.19 g/ml = 35.95 g chromium

If the alloy is 10% chromium by mass , then the total mass will be...

10%(x) = 35.95 g

0.10x = 35.95 g

x = 359.5 g of alloy = 360 g of alloy (to 2 sig figs)