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3 years ago

The main compound used to release energy for metabolism is ________.

1 answer:

6 0

Oxygen, I hope! I thought maybe carbon? That is all that is needed, but 20 characters are required, so!

Or did you want, carbon, although an element not a compound, is needed to release energy for metabolism.

" <span>RespirationWhat is respiration?Respiration is the chemical process by which organic compounds release energy. The compounds change into different ones by exergonic reaction"</span>

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What is the definition of solute

sdas [7]

Answer:

a substance that can be dissolved by a solvent to create a solution

Explanation:

8 0

2 years ago

Read 2 more answers

What is the molarity of a NaOH solution if 32.47 mL is required to titrate 0.6013 g of potassium hydrogen phthalate (C8H5O4K)

Artist 52 [7]

Answer:

0.0907 M

Explanation:

Before you can calculate the molarity, you need to convert grams to moles (via molar mass) and convert mL to L.

(Step 1)

Molar Mass (C₈H₅O₄K):

8(12.011 g/mol) + 5(1.008 g/mol) + 4(15.998 g/mol) + 39.098 g/mol

Molar Mass (C₈H₅O₄K): 204.218 g/mol

0.6013 g C₈H₅O₄K 1 mole
------------------------------ x ------------------ = 0.00294 moles C₈H₅O₄K
204.218 g

(Step 2)

1,000 mL = 1 L

32.47 mL 1 L
--------------- x ----------------- = 0.03247 L
1,000 mL

(Step 3)

Molarity (M) = moles / volume (L)

Molarity = 0.00294 moles / 0.03247 L

Molarity = 0.0907 M

6 0

1 year ago

By what means (or force) can the atoms in compounds be separated?

Neporo4naja [7]

Answer:

chemical means

Explanation:

Compounds can be separated by chemical means physical means boiling pressure

5 0

2 years ago

At constant pressure, density of gas is inversely proportional to its temperature. This is how hot air balloon is floating in ai

Arturiano [62]

Answer:

1.08 g/L is the density of air.

Explanation:

Pressure of the gas = P (atm)

Volume of the gas = V (L)

Moles of gas = n = $\frac{w(g)}{M(g/mol)}$

Temperature of the gas = T (K)

$PV=nRt$

$PV=\frac{w}{M}\times RT$

$PM=\frac{w}{V}RT=DRT$

where:

D = density of the gas = $\frac{Mass}{Volume}$

R = universal gas constant

w = Mass of the gas

M =Molar mass of the gas

Given = P = 1.0 atm , T = 54°C = 327.15 K

Average molar mass of the gas = 29 g/mol

Putting all the given values in above equation.

$1 atm\times 29 g/mol=D\times 0.0821 atm L/mol K\times 327.15 K$

$D=\frac{1 atm\times 29 g/mol}{0.0821 atm L/mol K\times 327.15 K}$

D = 1.08 g/L

1.08 g/L is the density of air.

3 0

2 years ago

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO (s) + H 2O (l) → Ca(OH) 2 (s) In a p

Tomtit [17]

Answer:

The answer to your question is: 81%

Explanation:

Data

CaO = 2 g

Ca(OH)₂ = 2.14 g

Reaction balanced

CaO + H₂O ⇒ Ca(OH)₂

Molecular mass

Calcium oxyde = 40 + 16 = 56 g

Calcium hydroxide = 40 + 2 + 32 = 74 g

Process

Rule of three

56 g of CaO -------------- 74 g of Ca(OH)₂

2 g of CaO ------------- x

x = (2 x 74) / 56

x = 2.64 g of Ca(OH)₂

Percent yield

% Yield = $\frac{2.14}{2.64} x 100$

% yield = 81

8 0

2 years ago