EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
To make a chocolate cake, a baker mixes 250 grams of flour, 50 grams of cocoa powder, and 100 grams of sugar. What is the mass of the dry ingredients of the cake?
A
100 grams
B
200 grams
C
300 grams
D
400 grams
Explanation: 

Detailed explanation-1: -The balanced chemical reaction can be given as: 2 NaHCO 3 ( s ) → Na 2 CO 3 ( s ) + H 2 O ( g ) + CO 2 ( g ) ( Sodium bicarbonate ) ( Sodium carbonate ) ( Water ) ( Carbon dioxide ) .

Detailed explanation-2: -Baking powder will be labeled “double acting” or “triple acting.” In a recipe, the correct amount of baking powder is 1 teaspoon per cup of flour (at the maximum 1-1/4 teaspoons); for baking soda it’s 1/4 teaspoon per cup of flour. Get the leavening right and you’ll have lighter, finer textured cakes.

Detailed explanation-3: -Too much baking powder can cause the batter to be bitter tasting. It can also cause the batter to rise rapidly and then collapse. (i.e. The air bubbles in the batter grow too large and break causing the batter to fall.) Cakes will have a coarse, fragile crumb with a fallen center.

Detailed explanation-4: -A vanilla cake requires 200g of flour and 25g of fat, and a strawberry cake requires 100g of flour and 50g of fat. From 5kg of flour and 1kg of fat, the maximum number of cakes that can be made is.

There is 1 question to complete.