Answer:
100 cal
Explanation:
Given data:
Mass of carbohydrate = 19 g
Mass of protein = 1 g
Mass of fats = 4 g
Solution:
The average calories content of
Protein 4 cal/g
Carbohydrate 4 cal/g
Fat 9 cal/g
Then,
1 g protein × 4 cal/g = 4 cal
4 g fat × 9 cal/g = 36 cal
19 g carb. × 4 cal/g = 76 cal
Total calories = 116 cal
Round to one significant figure = 100 cal
Answer:
In addition, other pollutants like fertilizers, pesticides, and heavy metals are often attached to the soil particles and wash into the water bodies, causing algal blooms and depleted oxygen, which is deadly to most aquatic life.
Answer:
total mass divided by its total volume
Explanation:
Answer:
120.44 × 10²³ molecules
Explanation:
Given data:
Moles of C₃H₈ = 5.0 mol
Molecules of water produced = ?
Solution:
Chemical equation:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
Now we will compare the moles of C₃H₈ and water.
C₃H₈ : H₂O
1 ; 4
5 : 4×5 = 20 mol
Molecules of water:
1 mole = 6.022 × 10²³ molecules
20 mol×6.022 × 10²³ molecules / 1 mol
120.44 × 10²³ molecules
Answer:
Mass of sodium, the person daily consume = 8.58 g
Explanation:
Given that:-
sodium chloride is 39% sodium by mass which means that:-
100 g of sodium chloride contains 39 g of sodium
Also,
1 g of sodium chloride contains 0.39 g of sodium
So, Given mass = 22 g
22 g of sodium chloride contains 
g of sodium
<u>Mass of sodium, the person daily consume = 8.58 g</u>
