The behavior of light can be modeled as ______

During the formation of ammonia, what mass of Hydrogen gas would be required to react completely with 42g of nitrogen gas?

Illusion [34]

Answer:

9 grams

Explanation:

Hope it can help you.....

7 0

3 years ago

1. A weather balloon is filled with helium on a cool morning when the temperature is 13.0°C. The temperature is predicted to rea

azamat

Answer:

Number of moles: n = 1.29 moles

If the temperature reaches 35°C which is 308.15 K the balloon will burst

Explanation:

Using the formula: PV = nRT

Where P is pressure in atm, V is volume in L, n is the number of moles, R is the gas constant which can be 8.314 J/mol K or 0.08206 atm L/mol K, and T is temperature in K.

In order to know which R to use, just take a look at the units. If you are given the pressure in atm, then use 0.08206 atm L/mol K. If you are given energy in Joules instead, then use 8.314 J/mol K.

Problem solution:

1 atm = 101.325 kPa, so 238 kPa is equal to 2.349 atm

1°C is 274.15 K, so 13°C is 286.15 k

Using the formula PV = nRT

2.349 atm * 12.9 L = n * 0.08206 atm L/mol K * 286.15 k

n = (30.302 atm L) / (23.481 atm L/mol)

n = 1.29 moles

If the temperature reaches 35°C which is 308.15 K the balloon will burst:

P = nRT/V

P = (1.29 moles * 0.08206 atm L/mol K * 308.15 k) / 12.9 L

P = 2.529 atm = 256.21 kPa

4 0

3 years ago

Rolf prepares four solutions using different solutes as shown in the table below.

zloy xaker [14]

It’s a
because i know

4 0

3 years ago

Read 2 more answers

Other questions:

vlabodo [156]

Answer:

The functional group present in Cinnamon are : Aromatic , alkene , aldehyde

The functional group present in Almonds : Aromatic , aldehyde

The functional group present in DHA : Ketone , alcohol

Explanation:

Almond :

Chemical formula : $C_{7}H_{6}O$

It contain : A benzene ring (Aromatic) , a -CHO group (aldehyde)

Cinnamon Sticks :

Chemical Formula : $C_{9}H_{8}O$

It contain : A benzene ring (Aromatic) ,an alkene group (C=C) , a -CHO group (aldehyde)

DHA:

Chemical Formula : $C_{3}H_{6}O_{3}$

It contain : Alcohol group (-OH) , ketone group (C=O)

8 0

3 years ago

How many atoms of he gas are present in a 450 ml container at 35°c and 740 mmhg?

aniked [119]

To answer this question, we will need to use the gas law which states that:
PV = nRT where:
P is the pressure of the gas = 740 mmHg = 98658.550357 Pascal
V is the volume = 450 ml = 0.45 liters
n is the number of moles that we will calculate
R is the gas constant = 8.314 J/(K. mol)
T is the temperature = 35 celcius = 308 degrees kelvin

Substitute with these values in the above equation to get the number of moles as follows:
98658.550357 * 0.45 = n * 8.314 * 308
n = 17.3375 moles

Each mole contains Avogadro's number of atoms, therefore:
number of atoms = 17.3375 * 6.02 * 10^23 = 1.0437 * 10^25 atoms

8 0

4 years ago

The behavior of light can be modeled as _______.