Question

calculate number of moles in 20 g almunium​

Answer 1

Answer :

0.051 g Al203 = 6.022×1023 / 102 × 0.051 molecules of Al203

= 3.011 × 1020 molecules of Al21

Answer 2

Answer:

Yearly interest is 25000 and total amount Jethalal will return to the bank is 3,75,000.

Step-by-step explanation:

Given:-

Principle (P) =2,50,000

Interest (I) = 10%

Time (T) = 5 years

To find:-

1) Yearly Interest

2) Total amount Jethalal will return to the bank.

Solution:-

Yearly interest= P×I×T/100=

2,50,000×10×1/100= 25,000

Therefore interest of 5years=5×25,000=1,25,000

Total amount to be paid=P+I =

2,50,000+1,25,000=3,75,000

Therefore Yearly interest is 25,000 and total amount Jethalal will return to the bank is 3,75,000 rupees,