Question #09add

1 Answer
Jun 23, 2017

Answer:

# X = 32.1 g/m#

Explanation:

Set up a ratio and solve for X

# 5.72 /10 = (4x)/ ( 4x + 6(O)#

5.72 = the amount of X in the compound

4x = the amount of X in the compound

so # 5.72 = 4x#

10 = the total amount of the Compound

4x + 6(O) the total amount of the Compound

so # 10 = 4X + 6(O)# The ratio is

# 5.72/10 = (4X) / ( 4X + 6O)#

# 6 xx 16 = 96 # : # O = 16g/m#

# 5.72/10 = (4x)/(4X + 96)# removing the denominators gives

# 5.72(4x) + 5.72(96) = 40X# multiplying this out gives.

# 22.88 X + 549. = 40X # subtract 22.88 X from both sides

# 22.88 X - 22.88 X + 549 = 40X - 22.88X # This gives

# 549 = 17.12 X# divide both sides by 17.12 gives

# 32.1 g. = X #

Within the margin of error the grams / mole is approximately 32 grams/mole X is probably Sulfur