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3 years ago

Atp can be used as the cell's energy exchange mechanism because

Chemistry

1 answer:

SCORPION-xisa [38]3 years ago

6 0

Because energy is needed to alive so when glucose goes into oxygen cells it provides energy in the form of Atp

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Which of the following brain waves is associated with a deep sleep?

natta225 [31]

Delta waves are associated with a deep sleep~

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3 years ago

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2. What is the difference between an element and a compound?

melamori03 [73]

Answer:

element.

.it is pure substance composed of only one type of atoms.

.the number of element is more than 118.

compound.

.a compound is composed of atoms of two or more elements.

.the number of compound is very large in comparison of elements.

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2 years ago

350.0-mL of 0.50 M hydrogen sulfate solution is reacted with 15.0 grams of sodium hydroxide. What volume of water will be produc

Evgesh-ka [11]

The volume of water that will be produced from the reaction will be 6.3 mL

<h3>Stoichiometric calculation</h3>

From the equation of the reaction:

$H_2SO_4 + 2NaOH --- > Na_2SO_4 + 2H_2O$

The mole ratio of hydrogen sulfate to sodium hydroxide is 1:2.

Mole of hydrogen sulfate = 0.50 x 350/1000 = 0.175 moles

Mole of 15 grams sodium hydroxide = 15/40 = 0.375 moles

Thus, hydrogen sulfide is the limiting reagent.

Mole ratio of hydrogen sulfide to water = 1:2.

Equivalent mole of water = 0.175 x 2 = 0.35 moles

Mass of 0.35 moles of water = 0.35 x 18 = 6.3 grams.

1 gram of water = 1 ml.

Thus, 6.3 grams of water will be equivalent to 6.3 mL

More on stoichiometric calculation can be found here: brainly.com/question/27287858

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2 years ago

Why are deposits of pure sodium metal or pure potassium metal not seen in nature

Natasha2012 [34]

<span>They are not seen in nature because they are always combined with something to make something else.</span>

5 0

3 years ago

Calculate the osmotic pressure of a solution containing 1.502 g of (Nh4)2SO4 in 1 L at 36.54 Degrees Celcius. (The gas constant

padilas [110]

Answer:

0.2886 atm is the osmotic pressure of a solution.

Explanation:

Osmotic pressure of solution = $\pi$

Concentration of the solution = c

Mass of the ammonium sulfate = 1.502 g

Moles of ammonium sulfate = $\frac{1.502 g}{132.16 g/mol}=0.01136 mol$

Volume of the solution = 1 L

Concentration of the solution:

$=\frac{\text{Moles of ammonium sulfate}}{\text{Volume of the solution}}$

$c=\frac{0.01136 mol}{1 L}=0.01136 mol/L$

Temperature of the solution ,T= 36.54°C = 309.69 K

R = universal gas constant = 0.08206 L atm/mol K

$\pi=cRT$

$\pi=0.01136 mol/L\times 0.08206 L atm/mol K\times 309.69 K$

$\pi=0.2886 atm$

0.2886 atm is the osmotic pressure of a solution.

5 0

3 years ago