Question

Which of the following has the lowest percent Gold content by weight?

a. Au (NO3)3 b. Au (OH)3
d. AuPO3
c. AuF3
d. AuPO3

Answer 1

The correct answer is option d. AuPO3.Gold content by weight:

a. Au (NO3)3 = 69.94%

b. Au (OH)3 = 89.07%

c. AuF3 = 69.96%

d. AuPO3 = 42.55%

AuPO3 has the lowest percent Gold content by weight, as only 42.55% of its weight is attributed to Gold.

Step-by-step explanation:

The correct answer is option d. AuPO3.

AuPO3 has the lowest percent Gold content by weight, as only 42.55% of its weight is attributed to Gold. The other options, Au(NO3)3, Au(OH)3, and AuF3 have higher percent Gold content by weight than AuPO3.

Answer 2

The correct answer is (d) AuPO3 as it does not contain any gold in its chemical formula.

Step-by-step explanation:

The correct answer is (d) AuPO3 as it does not contain any gold in its chemical formula.

(a) Au(NO3)3 contains 79.9% gold by weight

(b) Au(OH)3 contains 89.8% gold by weight

(c) AuF3 contains 69.5% gold by weight.