Answers
The molar mass is 3230.8 g/mol
How to determine the valueFirst, we need to know that the formula for the general gas law is represented as;
PV = nRT
such that the parameters are;
P is the pressureV is the volumen is the number of molesR is the gas constantT is the temperatureSubstitute the values
1 × 2.33 = n × 8.314 × 433.15
Multiply the values, we get;
n = 2.33/ 8.314 × 433.15
Divide the values
n = 6.5 × 10⁻⁴ moles
But, number of moles = mass/molar mass
Molar mass = 2.10/ 6.5 × 10⁻⁴
Molar mass = 3230.8 g/mol
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Related Questions
Can someone please help me with this? Thank you for your help!
Answers
The correct answer for 1 is that the formation of liquid droplets above the solution is not an indication that a chemical reaction has occurred, which is option a. The formation of the silvery metal is an example of which of the following indicators of precipitate formation which is in option c .
The formation of liquid droplets above the solution is not an indication of a chemical reaction because it is likely caused by a physical process rather than a chemical one. As the liquid in the flask evaporates due to the warmth of the sunlight, water vapor rises and then cools as it reaches the cooler surface of the glass. This causes it to condense back into liquid droplets above the solution. This process is called condensation and is a physical change that occurs due to changes in temperature and pressure.
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The same amount of nitrogen gas is in both containers. The pressure in container A is
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The pressure in container A depends on various factors, such as the volume of the container, the temperature of the gas, and the number of gas molecules present. However, without specific values or conditions provided, it is difficult to provide an exact answer.
In general, the pressure of a gas is directly proportional to the number of gas molecules present and the temperature, while inversely proportional to the volume of the container.
If the volume, temperature, and number of nitrogen gas molecules are the same in both containers, then the pressure in container A would be the same as the pressure in the other container.
It's important to note that pressure is typically measured in units such as pascals (Pa) or atmospheres (atm), and specific values would be needed to calculate the exact pressure in container A.
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Question 2
What factors decrease the transfer of thermal energy?
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Answer:
Hair on our head reduces heat loss because air is trapped between individual hairs. To reduce heat transfers from our bodies, we can wear insulating clothing - such as gloves, scarves, hats and thermal socks - in cold weather. The more layers we wear, the more air can be trapped and the warmer we will remain.
Explanation:
have a nice day.
1 answer
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Answers
Answer:
Signal noise will reduce the information in the transmitted signal.
Explanation:
Signal noise is the most likely factor that will reduce the information in a transmitted signal because:
Signal noise is any unwanted interference that degrades a communication signal.Signal noise can interfere with both analog and digital signals, and it can cause distortion of the signal, which can lead to errors in the information that is being transmitted.NEED HELP ON QUESTION ASAP! !
If answer is correct I'll rate you five stars a thanks and maybe even brainliest!
Please can you explain what this paragraph is trying to say. Also what does it mean in the sentence 'the difference in charge across the battery provides push for current' and what is the difference in charge.
Here's paragraph I need to have a simple definition of:
A high waterfall is also like a large voltage. It will transfer a lot of energy to the water (charge), making the river flow very fast (a large current) the difference in height makes the river flow. In a circuit , the difference in charge across battery provides push for the current.
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A waterfall is a river's water falling rapidly to the ground. It is created in a river's upper course where there are high mountains.
Thus, Many waterfalls are transient and only occur during rainstorms because of their location in the landscape, where they are often over bedrock and fed by a small contributing region.
For general knowledge, we are listing the "Top 10 Highest Waterfalls in India" here. The Kunchikal Falls are the second-highest waterfall in Asia and the highest in all of India.
The waterfall, which is close to Agumbe in Karnataka's Shimoga district, has a height of 1,493 feet. The Varahi River creates the biggest waterfall. The sole permanent rain forest research is located in Agumbe Valley, one of India's most heavily rained-on regions.
Thus, A waterfall is a river's water falling rapidly to the ground. It is created in a river's upper course where there are high mountains.
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A sample of water weighing 523g is cooled by 23C. Calculate the q value for this process.
Answers
Answer:
The q value for this process is -241.69 kJ.
Explanation:
To calculate the q value, we need to use the equation:
q = m * c * ΔT
where:
q is the heat energy absorbed or released,
m is the mass of the substance,
c is the specific heat capacity of the substance,
ΔT is the change in temperature.
In this case, the mass of the water (m) is given as 0.523 kg, the change in temperature (ΔT) is 23°C, and the specific heat capacity of water (c) is approximately 4.18 kJ/kg°C.
Substituting the values into the equation:
q = 0.523 kg * 4.18 kJ/kg°C * 23°C
q = 5.46 kJ * 23°C
q = -125.58 kJ
The negative sign indicates that heat is being released from the water as it cools. Therefore, the q value for this process is -125.58 kJ or approximately -241.69 kJ (rounded to two decimal places).
Balance _O2+_C4H9OH to _CO2+H2O
Answers
The balanced equation is:
[tex]2 C_4H_9OH + 13 O_2 = 8 CO_2 + 10 H_2O[/tex]
The balanced equation for the combustion of [tex]C_4H_9OH[/tex](butanol) in the presence of oxygen ([tex]O_2[/tex]) to produce carbon dioxide ([tex]CO_2[/tex]) and water ([tex]H_2O[/tex]) is:
[tex]2 C_4H_9OH + 13 O_2 = 8 CO_2 + 10 H_2O[/tex]
In this equation, the coefficients are balanced such that the number of atoms of each element is the same on both sides of the equation. There are 8 carbon atoms, 18 hydrogen atoms, and 26 oxygen atoms on both sides of the equation.
Therefore, to balance the equation, the coefficients are:
2 for [tex]C_4H_9OH[/tex] to balance the carbon and hydrogen atoms on the left side
13 for [tex]O_2[/tex] to balance the oxygen atoms on both sides
8 for [tex]CO_2[/tex] and 10 for [tex]H_2O[/tex] to balance the carbon and hydrogen atoms on the right side
The balanced equation is:
[tex]2 C_4H_9OH + 13 O_2 = 8 CO_2 + 10 H_2O[/tex]
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Given that the initial rate constant is 0.0120s−1 at an initial temperature of 29 ∘C , what would the rate constant be at a temperature of 160 ∘C for the same reaction described in Part A?
Answers
k2 = A*e^(-Ea/R*(1/T2 - 1/T1))
where k2 is the rate constant at the new temperature, A is the frequency factor (which is assumed to be constant), Ea is the activation energy for the reaction, R is the gas constant (8.314 J/mol*K), T2 is the new temperature in Kelvin, and T1 is the initial temperature in Kelvin.
To solve this equation, we need to know the activation energy and frequency factor for the reaction. Do you have this information available?
How many moles of NHs, at STP, will react with 5.3 L O2 to form NOz and water?
Answers
The concept molar volume is used here to determine the moles of NH₃ needed. At 273 K, and 1 atm, 1 mole of any gas behaving ideally occupies a volume of 22.414 L. This is the molar volume at STP.
The volume occupied by one mole of a substance at a given temperature and pressure is defined as the molar volume at that temperature and pressure.
The equation connecting the volume of the sample of gas and the number of moles at STP is given as:
No: of moles = V₀ in L / 22.414
So here the volume = 5.3 L
Then number of moles is:
n = 5.3 / 22.414 = 0.236
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NEED HELP ASAP PLEASEEE
Carbon has the highest melting point (3620°C) of any element and a specific heat of 0.7099 J/gºC. Tungsten has a specific heat of 0.1320 J/gºC. An 11.2g sample of carbon is heated to its melting point and allowed to radiate heat to a 165.3g sample of tungsten. The initial temperature of the tungsten is 31.0°C. What will be the final temperature of the tungsten?
Please show it step by step
Answers
Answer:
c. 11.2
Explanation:
if the body is moving with uniform acceleration then, eng of motion are given as s = u+v/2+t
Answers
Yes, s = u+v/2+t, where s is the displacement, u is the beginning velocity, v is the end velocity, and t is the time required, is the equation of motion for a body travelling with uniform acceleration.
The basic law of motion, which states that a body's rate of change in displacement is directly proportional to its velocity, provides the basis for this equation. The equation of motion for a body travelling with constant acceleration, s = ut + 1/2at2, may be used to derive it.
The equation of motion for a body travelling with uniform acceleration is given by replacing the value of an as (v-u)/t and getting s = u+v/2+t. This formula is only accurate when the body's acceleration is constant and uniform.
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explain the relationship (linear or exponential) between rate and concentration including what order the iodate ion would be in.
CONCENTRATIONS
EXP. 1: 0.020
EXP 2: 0.019
EXP 3: 0.017
EXP 4: 0.016
EXP 5: 0.014
EXP 6: 0.013
EXP 7: 0.011
EXP 8: 0.01
EXP 9: 8.6x10^-3
EXP 10: 7.1x10^-3
EXP 11: 5.7x10^-3
EXP 12: 4.3x10^-3
RATE (s^-1):
EXP 1: 0.283
EXP 2: 0.1972
EXP 3: 0.2353
EXP 4: 0.2033
EXP 5: 0.1701
EXP 6: 0.133
EXP 7: 0.10
EXP 8: 0.1234
EXP 9: 0.077
EXP 10: 0.07380
EXP 11: 0.05102
EXP 12: 0.03883
By looking at the reaction mechanism, propose a Rate Law (WITHOUT the value of K). Explain the exponents for each reactant. Also, how does the rate law proposed compared to the relationship between rate and iodate concentration observed in the Rate law question?
Discuss, with respect to collision theory, the changes in the rates result from the changing concentrations of the iodate ion. What would you predict if we repeated these reactions at higher temperatures? Explain using collision theory.
Answers
Based on the given data, the relationship between rate and concentration is exponential.
A proposed rate law for the reaction based on the given data is:
Rate = k[IO3⁻]²[H+]What is the collision theory?Collision theory suggests that the rate of a chemical reaction is proportional to the frequency and energy of collisions between the reactant molecules.
As the concentration of iodate ions decreases, the frequency of collisions between reactant molecules decreases, which leads to a decrease in the rate of the reaction.
At higher temperatures, the kinetic energy of the reactant molecules increases, which increases the frequency and energy of collisions between reactant molecules.
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