# A metal oxide has the formula Z2O3. It can be reduced by hydrogen to give free metal and water…

Q: A metal oxide has the formula Z2O3. It can be reduced by hydrogen to give free metal and water. 0.1596g of the metal oxide requires 6 mg of hydrogen for complete reduction. The atomic weight of the metal is

(A) 27.9

(B) 159.6

(C) 79.8

(D) 55.8

Solution: Valency of metal in Z2O3 = 3

Z2O3 + 3H2 → 2Z + 3H2O

0.1596g of Z2O3 reacts with 6 mg of H2

1g H2 will react with g of Z2O3

equivalent weight of Z2O3 = 0.1596/0.006 = 26.6g

equivalent weight of Z2O3 = 26.6

= eq.wt. of Z + eq. wt. of = E + 8

E + 8 = 26.6

E = 18.6

Atomic weight of Z = 18.6 × 3 = 55.8
The passage contains a chemistry problem that involves a calculation to determine the atomic weight of a metal from the given data. The solution to the problem is provided in the text.
single_question_with_answer
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
# A metal oxide has the formula Z2O3. It can be reduced by hydrogen to give free metal and water…

Q: A metal oxide has the formula Z2O3. It can be reduced by hydrogen to give free metal and water. 0.1596g of the metal oxide requires 6 mg of hydrogen for complete reduction. The atomic weight of the metal is

(A) 27.9

(B) 159.6

(C) 79.8

(D) 55.8

Solution: Valency of metal in Z2O3 = 3

Z2O3 + 3H2 → 2Z + 3H2O

0.1596g of Z2O3 reacts with 6 mg of H2

1g H2 will react with g of Z2O3

equivalent weight of Z2O3 = 0.1596/0.006 = 26.6g

equivalent weight of Z2O3 = 26.6

= eq.wt. of Z + eq. wt. of = E + 8

E + 8 = 26.6

E = 18.6

Atomic weight of Z = 18.6 × 3 = 55.8
user
The passage contains a chemistry problem that involves a calculation to determine the atomic weight of a metal from the given data. The solution to the problem is provided in the text.

TYPE: SINGLE_QUESTION_WITH_ANSWER