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GREYUIT [131]
3 years ago
7

If a chocolate bar has 270 Calories from fat, does this mean the chocolate bar has 15 or 30. grams of fat? Explain.

Chemistry
2 answers:
Nostrana [21]3 years ago
8 0

<u>Answer:</u>

<em>The chocolate bar has 30 grams of fat, if it has 270 fat calories. </em>

<u>Explanation:</u>

Nourishment calories are characterized as the measure of warmth vitality required to raise the temperature of one kilogram of water by one degree Celsius.

The micro nutrients in our nourishment like proteins, fats and starches has their particular commitment to the absolute nourishment calorie which was taken by the human.

It is realized that every gram of fat adds to 9 calories in any nourishment thing.

1 g of Fat= 9 fat calories

1 fat calories= 19 g of fat

270 fat calories= 270 \times 19g of fat = 30 g of fat

Thus 270 fat calories will contain 30 g of fat in it.

maksim [4K]3 years ago
7 0

Answer:

30

Explanation:

Each gram of fat has 9 calories, knowing that:

fat=\frac{270[cal]}{9\frac{cal}{g} } =30[g]

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emmasim [6.3K]

A galvanic cell is formed when two metals are immersed in solutions differing in concentration 1 when two different metals are immersed.

<h3>What is galvanic cell?</h3>

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8 0
2 years ago
How many grams of potassium nitrate (KNO3) would form if 2.25 liters of a 1.50 molar lead nitrate Pb(NO3)2 solution reacts with
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4 0
4 years ago
To titrate 45.00 milliliters of an unknown HCl sample, use 25.00 milliliters of a standard 0.2000 M NaOH titrant. What is the mo
gtnhenbr [62]
V ( HCl ) = 45.00 mL in liters : 45.00 / 1000 => 0.045 L

M ( HCl ) = ?

V ( NaOH ) = 25.00 / 1000 => 0.025 L 

M ( NaOH) = 0.2000 M

number of moles NaOH :

n = M x V = 0.2000 x 0.025 => 0.005 moles of NaOH

Mole ratio:

HCl + NaOH = NaCl + H2O

1 mole HCl ---------- 1 mole NaOH
? mole HCl ---------- 0.005 moles NaOH

moles HCl = 0.005 x 1 / 1

= 0.005 moles of HCl :

M ( HCl ) = n / V

M ( HCl ) = 0.005 / 0.045

= 0.1111 M

hope this helps!




4 0
3 years ago
What are the limitations of using chemical indicators in determining the pH of a given solution?
tino4ka555 [31]

Answer:

1) chemical indicators won't work above it's pH range so therefore it probably won't change colour.

2) the solution should be clear and colourless to see colour change.

3) indicators tend to be of low accuracy so it's not 100% reliable.

5 0
3 years ago
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