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A serving of soup contains 5.0 g of fat, 20.0 g of carbohydrates, and 3.0 g of protein. Determine how many kilocalories (kcal) a

marta [7]

Answer: The amount of kilocalories contained in the given serving of soup is 0.137 kCal

Explanation:

As per the USDA:

Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.

We are given

Mass of fat in the soup serving = 5.0 g

Mass of carbohydrates in the soup serving = 20.0 g

Mass of protein in the soup serving = 3.0 g

Conversion factor used: 1 kCal = 1000 Cal

Applying unitary method:

For Fat:

1 gram of fat provides 9 calories

So, 5.0 gram of fat will provide = $\frac{9}{1}\times 5.0=45Cal=0.045kCal$

For Carbohydrates:

1 gram of carbohydrates provides 4 calories

So, 20.0 gram of carbohydrates will provide = $\frac{4}{1}\times 20.0=80Cal=0.080kCal$

For Proteins:

1 gram of proteins provides 4 calories

So, 3.0 gram of fat will provide = $\frac{4}{1}\times 3=12Cal=0.012kCal$

Total kilocalories per serving = [0.045 + 0.080 + 0.012] kCal = 0.137 kCal

Hence, the amount of kilocalories contained in the given serving of soup is 0.137 kCal

4 0

3 years ago

If 10.62 mL of a standard 0.3330 M KOH solution reacts with 98.20 mL of CH3COOH solution, what is the molarity of the acid solut

Nikolay [14]

Answer:

0.036 M of $CH_{3} COOH$

Explanation:

It is an example of acid-base neutralization reaction.

KOH + $CH_{3} COOH$ ----> $CH_{3} COO^{-} K^{+}$ + $H_{2}O$

Base Acid Salt

When two component react then the number of moles of both the component should be same, therefore the number of moles and acids and bases should be the same in the following .

Molarity= $\frac{\textrm{No. of Moles}}{\textrm{Volume of the Particular Solution}}$

No.of moles= Molarity × Volume of the Particular Solution

Therefore,

$M_{1}V_{1} =M_{2}V_{2}$ ------------------------------(1)

where

$M_{1}$ = Molarity of Acid

$V_{1}$ = Volume of Acid

$M_{2}$ = Molarity of Base

$V_{2}$ = Volume of Base

$M_{1}$ =0.3330 M

$V_{1}$ =10.62 mL

$V_{2}$ =98.2 mL

$M_{2}$ =??(in M)

Plugging in Equation 1,

0.3330 × 10.62 = $M_{2}$ × 98.2

$M_{2}$ = $\frac{0.3330*10.62}{98.2}$

$M_{2}$ =0.036 M

3 0

3 years ago

Which element would be the most conductive and

Masja [62]

Malleability described the property of physical deformation under some compressive stress; a malleable material could, for example, be hammered into thin sheets. Malleability is generally a property of metallic elements: The atoms of elemental metals in the solid state are held together by a sea of indistinguishable, delocalized electrons. This also partially accounts for the generally high electrical and thermal conductivity of metals.

In any case, only one of the elements listed here is a metal, and that’s copper. Moreover, the other elements (hydrogen, neon, and nitrogen) are gases under standard conditions, and so their malleability wouldn’t even be a sensible consideration.

8 0

3 years ago

Read 2 more answers

Which statement best describes what makes a base weak

PtichkaEL [24]

The statement that describes what makes a base weak is that the base will be unable to dissociate completely in water.

A base is any of a class of generally water-soluble compounds, having bitter taste, that turn red litmus blue, and react with acids to form salts.

Bases usually dissociate into hydroxide ions (OH-) when in an aqueous solution.

However, a base is termed weak or strong depending on it's ability to dissociate completely. A weak base does not dissociate completely into hydroxide ions when in an aqueous solution.

Learn more about bases at: brainly.com/question/23687757

#SPJ1

5 0

2 years ago

(a) (i) What is the name of apparatus used to measure conductivity of water

dsp73

Answer:

An electrical conductivity meter (EC meter) measures the electrical conductivity in a solution. It has multiple applications in research and engineering, with common usage in hydroponics, aquaculture, aquaponics, and freshwater systems to monitor the amount of nutrients, salts or impurities in the water.

8 0

3 years ago