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oksian1 [2.3K]
3 years ago
7

Why are stomates important for gas exchange and photosynthesis?

Chemistry
1 answer:
PtichkaEL [24]3 years ago
5 0
Important because they allow co2 to enter the plant. Co2 is used as fuel for photosynthesis
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The cell theory has three main components. Which three scientists’ conclusions formed these components?
Genrish500 [490]

Answer:

Matthias Schleiden, Theodor Schwann, and Rudolf Virchow.

Explanation:

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Am i adopted? and why​
vredina [299]

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because you are a living organism. you also have feeling.

6 0
3 years ago
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If 45 g of O2 gas in a 500 mL container is exerting a pressure of 5.2 atm, what temperature is the gas?
iogann1982 [59]

If 45 g of O2 gas in a 500 mL container is exerting a pressure of 5.2 atm, 22.53K is the temperature in the gas.

<h3>What is an ideal gas equation?</h3>

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

First, calculate the moles of the gas using the gas law,

PV=nRT, where n is the moles and R is the gas constant. Then divide the given mass by the number of moles to get molar mass.

Given data:

P= 5.2 atm

V= 500 mL =0.5 L

n=?

R= 0.082057338 \;L \;atm \;K^{-1}mol^{-1}

T=?

Moles = \frac{mass}{molar \;mass}

Moles = \frac{45 g}{32}

Moles = \frac{45 g}{32}

Moles = 1.40625

Putting value in the given equation:

\frac{PV}{RT}=n

1.40625= \frac{5.2 \;atm\; X \;0.5 \;L}{0.082057338 \;L \;atm \;K^{-1}mol^{-1} X T}

T= 22.53167034 K= 22.53K

Hence, If 45 g of O2 gas in a 500 mL container is exerting a pressure of 5.2 atm, 22.53K is the temperature in the gas.

Learn more about the ideal gas here:

brainly.com/question/27691721

#SPJ1

7 0
2 years ago
Calculate the concentration (M) of sodium ions in a solution made by diluting 25.0 mL of a 0.765 M solution of sodium sulfide to
Yuri [45]

<u>Given:</u>

Concentration of Na₂S = 0.765 M

Volume of Na₂S solution = 25.0 ml = 0.025 L

Final total volume = 225 ml = 0.225 L

<u>To determine:</u>

The concentration of Na+ ions

<u>Explanation:</u>

# moles of Na₂S = 0.765 * 0.025 = 0.0191 moles

Based on the atomic stoichiometry of Na₂S-

# moles of Na⁺ ions = 2*0.0191 = 0.0382 moles

conc of Na⁺ ions = 0.0382 moles/ 0.225 L = 0.169 M

Ans: [Na⁺] = 0.169 M

5 0
3 years ago
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Calculate the volume of 2.408x1024 molecules of water vapor at STP.
Tom [10]

Answer:

B

Explanation: im not rlly sure you can go with what i said or you dont

8 0
3 years ago
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