Q1. A 9-carat gold ring is made from a mixture of metals.
The table below shows the mass of different metals in the ring.
The mass of the ring is 5.0 g

Metal Mass of metal in g
Gold 1.9
Silver 2.8
Copper 0.3
(a) Plot the data for copper from the table above on the graph below.

(2)
(b) The cost of gold is £30 per gram.
Calculate the cost of the gold used in the 9-carat gold ring.
Use the table above.


Cost of gold = £

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/4zZs6GM

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

the ratio of the conjugate base to the acid required to attain the desired ph.