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4 years ago

MgCO3 (s) → Mgo (s) + CO2 (g)

Chemistry

2 answers:

vodomira [7]4 years ago

8 0

Solid im pretty sure thats what the (s) means

Lisa [10]4 years ago

6 0

Answer: D. Solid

Explanation: From the reaction MgO or Magnesium oxide is a solid compound.

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What is the pressure in a 5.00 L tank with 23.50 grams of oxygen gas<br> at 350 K?

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4 years ago

What is the mass in grams of 4.85 x 10^22 Al atoms? (Report your answer to two places past the decimal

aksik [14]

Answer:

2.17 gm Al

Explanation:

First, find the number of moles . Then multiply by the mole weight of aluminum.

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2 years ago

I will give brainliest!!! What is the density of a sample of chlorine gas that exerts a pressure of 4.5 atm in a 12.6 L containe

labwork [276]

Answer : The density of a sample of chlorine gas is, 12.59 g/L

Explanation :

To calculate the density of chlorine gas we are using ideal gas equation.

$PV=nRT\\\\PV=\frac{w}{M}RT\\\\P=\frac{w}{V}\frac{RT}{M}\\\\P=\frac{\rho RT}{M}$

where,

P = pressure of chlorine gas = 4.5 atm

V = volume of chlorine gas = 12.6 L

n = number of moles of chlorine gas

w = mass of chlorine gas

R = gas constant = 0.0821 L.atm/mol.K

T = temperature of chlorine gas = $36^oC=273+36=309K$

M = molar mass of chlorine gas = 71 g/mol

Now put all the given values in the above formula, we get:

$P=\frac{\rho RT}{M}$

$4.5atm=\frac{\rho \times (0.0821L.atm/mol.K)\times (309K)}{71g/mol}$

$\rho=12.59g/L$

Therefore, the density of a sample of chlorine gas is, 12.59 g/L

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4 years ago

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