Question

what is weight percentage of Urea solution in which 10 gram of Urea is dissolved in 90 gram of water​

Answer 1

ANSWER :

Given :

▪ Weight of urea = 10g

▪ Weight of water = 90g

To Find :

▪ Weight percentage of urea solution.

Weight percentage :

✏ Symbol : %(w/W)

✏ Definition : Amount of solute in grams present in 100g of solution.

✏ Effect of temperature : No effect

✏ Formula :

%w/W = (Mass of solute × 100) ÷ (Total mass of solution)

๏ Solute = Urea

๏ Solvent = Water

Calculation :

→ %w/W = 10×100/(10+90)

→ %w/W = 1000/100

→ %w/W = 10%

Answer 2

$\rule{200}3$

$\huge\tt{GIVEN:}$

• Urea dissovled in 90 gram of water is 10 gram.

$\rule{200}3$

$\huge\tt{TO~FIND:}$

• The percentage of urea solution.

$\rule{200}3$

$\huge\tt{SOLUTION:}$

Here, Solute is urea and the solvent is water

Formula used : %w/W = (Weight of solute × 100) / (Total Weight of solution)

So,by putting the formal here we got,

➩%w/W = 10 × 100 / (10 + 90 )

➩%w/W = 1000/100

➩%w/W = 10%

$\rule{200}3$