FMU
Question 5
Rose gold is an alloy containing gold, copper, and silver. If the Rose gold alloy consists of
copper and of silver, determine the mass of gold in a 7.5 kilogram block of the
alloy.
( 3 marks)

Ask by Munoz Simmons. in Australia

Nov 24,2024

Question

FMU
Question 5
Rose gold is an alloy containing gold, copper, and silver. If the Rose gold alloy consists of
copper and of silver, determine the mass of gold in a 7.5 kilogram block of the
alloy.
( 3 marks)

Ask by Munoz Simmons. in Australia

Nov 24,2024

UpStudy AI · Accepted Answer

To determine the mass of gold in a 7.5 kilogram block of rose gold alloy, we first need to find the percentage of gold in the alloy.

1. **Calculate the percentage of gold in the alloy:**
   - The total percentage of copper and silver in the alloy is:
     $$
     31.5\% \text{ (copper)} + 4.5\% \text{ (silver)} = 36\%
     $$
   - Therefore, the percentage of gold in the alloy is:
     $$
     100\% - 36\% = 64\%
     $$

2. **Calculate the mass of gold in the 7.5 kg block:**
   - To find the mass of gold, we can use the percentage of gold:
     $$
     \text{Mass of gold} = \text{Total mass of alloy} \times \left(\frac{\text{Percentage of gold}}{100}\right)
     $$
   - Substituting the values:
     $$
     \text{Mass of gold} = 7.5 \, \text{kg} \times \left(\frac{64}{100}\right) = 7.5 \, \text{kg} \times 0.64 = 4.8 \, \text{kg}
     $$

Thus, the mass of gold in the 7.5 kilogram block of the rose gold alloy is **4.8 kilograms**.
The mass of gold in the 7.5 kg block of rose gold alloy is 4.8 kilograms.

FMU
Question 5
Rose gold is an alloy containing gold, copper, and silver. If the Rose gold alloy consists of
copper and of silver, determine the mass of gold in a 7.5 kilogram block of the
alloy.
( 3 marks)

Upstudy AI Solution

Answer

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FMU Question 5 Rose gold is an alloy containing gold, copper, and silver. If the Rose gold alloy consists of copper and of silver, determine the mass of gold in a 7.5 kilogram block of the alloy. ( 3 marks)

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FMU
Question 5
Rose gold is an alloy containing gold, copper, and silver. If the Rose gold alloy consists of
copper and of silver, determine the mass of gold in a 7.5 kilogram block of the
alloy.
( 3 marks)