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3 years ago

What is the summary chemical equation for photosynthesis?

Chemistry

1 answer:

Phoenix [80]3 years ago

3 0

The chemical equation for photosynthesis is carbon dioxcide + water then sunlight = glucose and oxygen

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3 years ago

Read 2 more answers

A cylinder with a movable piston contains 2.00 g of helium, He, at room temperature. More helium was added to the cylinder and t

erma4kov [3.2K]

Answer: 2.5 grams

Explanation:

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\textMolar mass}}=\frac{2g}{4g/mol}=0.5moles$

Avogadro's Law: This law states that volume is directly proportional to the number of moles of the gas at constant pressure and temperature.

$V\propto n$ (At constant temperature and pressure)

$\frac{V_1}{n_1}=\frac{V_2}{n_2}$

where,

$V_1$ = initial volume of gas = 2.00 L

$V_2$ = final volume of gas = 4.50 L

$n_1$ = initial number of moles = 0.5 moles

$n_2$ = final number of moles = ?

Now put all the given values in the above equation, we get the final pressure of gas.

$\frac{2.00}{0.5}=\frac{4.50}{n_2}$

$n_2=1.125moles$

Thus moles of helium added to the cylinder = (1.125-0.5)= 0.625 moles

Mass of helium added = $moles\times {\text {Molar mass}}=0.625\times 4=2.5grams$

2.5 grams of helium were added to the cylinder if the volume was changed from 2.00 L to 4.50 L.

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3 years ago