What is the mass of oxygen in 230 g of sulfurous acid, H2SO3?

A student measures the sides of a piece of paper to determine the area of the paper. His measurements are: 5.70 cm length and 10

Basile [38]

Answer:

58.254

Explanation:

4 0

3 years ago

CAN ANYONE PLEASE HELP ME?! ITS VERY MUCH URGENT.. (MARK BRAINLIEST!)

SashulF [63]

Answer:

you know you can use Quizlet

Explanation:

8 0

3 years ago

Which of the following is an example of a model? PV=nRT, Geographical map, I believe that aliens exist, all of the above.

aleksandrvk [35]

Answer: The correct answer is geographical map.

Explanation:

Model is defined as the three dimensional representation of a proposed structure in a smaller scale.

For the given options:

Option 1: PV = nRT

This is a proposed law. This law is known as ideal gas law. A law is defined as the rule which defined a correct procedure. For any gas behaving ideally, this law is used.

Option 2: Geographical map

Map is defined as the diagrammatic representation of an area of land or sea which also shows physical features, roads, cities etc..

A 3-D model can be prepared for geographical map.

Option 3: I believe that aliens exist

This is a hypothetical statement. It is a smart guess by the means of set of assumptions and observations. For its validation, we need to conduct some experiments.

Hence, the correct answer is geographical map.

3 0

3 years ago

Read 2 more answers

Mass of the condensed unknown liquid: 0.3175 g Temperature of the water bath: 99.00 oC Pressure of the gas: 748.2 mmHg Volume of

lbvjy [14]

Answer:

1. 0.98 atm

Explanation:

The following data were obtained from the question:

Mass of unknown liquid (m) = 0.3175 g

Temperature (T) = 99 °C

Pressure (P) = 748.2 mmHg

Volume (V) = 145.0 mL

Gas constant (R) = 0.08206 atm.L/Kmol

1. Determination of the pressure in atm.

760 mmHg = 1 atm

Therefore,

748.2 mmHg = 748.2/760 = 0.98 atm

Therefore, the pressure in atm is 0.98 atm.

8 0

4 years ago

Kp/Kc for reaction for the equilibrium, A(g) ⇌ C(g)+B(g), is _______.

Sophie [7]

Kp/Kc = RT

<h3>Further explanation</h3>

Given

Reaction

A(g) ⇌ C(g)+B(g)

Required

Kp/Kc

Solution

For reaction :

pA + qB ⇒ mC + nD

$\large {\boxed {\bold {Kc ~ = ~ \frac {[C] ^ m [D] ^ n} {[A] ^ p [B] ^ q}}}}$

While the equilibrium constant Kp is based on the partial pressure

$\large {\boxed {\bold {Kp ~ = ~ \frac {[pC] ^ m [pD] ^ n} {[pA] ^ p [pB] ^ q}}}}$

The value of Kp and Kc can be linked to the formula '

$\large {\boxed {\bold {Kp ~ = ~ Kc. (R.T) ^ {\Delta n}}}}$

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

Δn=moles products - moles reactants or

number of product coefficients-number of reactant coefficients

For reaction :

A(g) ⇌ C(g)+B(g)

number of product coefficients = 1+1=2

number of reactant coefficients = 1

Δn= 2 - 1 =1

So Kp/Kc = RT

5 0

3 years ago