How many grams are there in 0.25 moles of copper oxide

1 mole is equal to 1 moles Copper(II) Oxide, or 79.5454 grams. Note that rounding errors may occur, so always check the results.

Explanation:

h let me think

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer