Answer:
P₂ = 113.49 kPa
Explanation:
Given that,
Initial pressure, P₁ = 101 kPa
Initial temperature, T₁ = 10.0°C = 283 K
Final temperature, T₂ = 45°C = 318 K
The relation between pressure and temperature is given by :
[tex]\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}[/tex]
Where
P₂ is the new pressure
So,
[tex]P_2=\dfrac{P_1T_2}{T_1}\\\\P_2=\dfrac{101 \times 318}{283 }\\\\P_2=113.49\ kPa[/tex]
So, the new pressure is equal to 113.49 kPa.
Explain why the temperature of the water decreased when the cold water was added to the hot water
Answer:
The water is clearly close to boiling temperature when you add the ice. So, initially the ice cools the water that is near it to near 0degC. Water between about 0 and 8 degrees is more dense than hotter water, so the cold water sinks to the bottom.Jun 14, 2020
Hope this helps if so don't hesitate to 'Thanks' and/or 'brainliest' this answer!
Answer:
hot water has more melting point
Explanation:
hot water has more melting point
hot water cpyld be boiled
¿Alguien me puede resolver la siguiente conversión?? 25 L a mL, m3, ft3 y dm3 Se los agradecería mucho
Answer:
25000mL, 0.025m³, 0.88ft³, 25dm³
Explanation:
Para resolver esta pregunta debes tener claros los factores de conversión:
1L = 1000mL
1000L = 1m³
1L = 0.035315ft³
1L = 1dm³
25L son:
25L * (1000mL / 1L) = 25000mL
25L * (1m³ / 1000L) = 0.025m³
25L * (0.035315ft³ / 1L) = 0.88ft³
25L * (1dm³ / 1L) = 25dm³
What are these smooth, distinct layers most directly evidence of ?
Answer: The layers of the rocks in one region of the parks are smooth and distinct, which are evidence of many, many years of deposition. The layers on the rocks are because of different deposition of sediments. Different sediments deposited over the rocks through wind, water and ice over the ages
Explanation:
Answer: The layers of the rocks in one region of the parks are smooth and distinct, which are evidence of many, many years of deposition. The layers on the rocks are because of different deposition of sediments. Different sediments deposited over the rocks through wind, water and ice over the ages
Hope we helped alot! :)
When does the energy in the H atom get closer
Answer:
3.48 g
Explanation:
Because its useful.
The difference between kinetic and potential energy is
kinetic energy is energy of motion and potential energy is energy of postion
kinetic energy is energy of position and potential energy is energy in motion
kinetic energy always increases and potential energy always decreases
kinetic energy always decreases and potential energy always increases
Answer: Kinetic Energy is already moving and is not at rest. Potential Energy is purely based on the position of the object and also the condition of the object.
Explanation: hope this helps
if 0.200 moles of AgNO3 react with 0.155 moles of H2SO4 according to this UNBALANCED equation below, how many grams of AgSO4 could be formed? AgNO3+H2SO4->Ag2SO4+HNO3
Answer:
62.36 g
Explanation:
AgNO3 + H2SO4 - > Ag2SO4 + HNO3
The balanced equation is given as;
2AgNO3 + H2SO4 → Ag2SO4 + 2HNO3
From the equation;
2 mol of AgNO3 reacts with 1 mol of H2SO4
if 0.200 moles of AgNO3 react with 0.155 moles of H2SO4
The limiting reactant us AgNO3 as it determines the amount of products to be formed.
2 mol of AgNO3 produces 1 mol of Ag2SO4
0.2 mol of AgNO3 would produce x mol of Ag2SO4
Solving for x;
2 = 2
0.2 = x
x =0.2 * 2/ 2 = 0.2 mol
Converting moles to mass;
Mass = Number of Moles * Molar mass
Mass = 0.2 mol * 311.8 g/mol
Mass = 62.36 g
Worldwide, nearly______ of the population live without clean drinking water.
A. 1/4
B. 1/2
C. 1/3
The answer is 1/3 so, ya'll can take the points just say the answers 1/3.
Thank u.
Answer:
1/3
Explanation:
SNAZZY
How many moles are in 1.2 x 10^24 atoms of Y
Answer: We know that, 1 mole of any substance contain 6.022 X 10^23 atoms/molecules. Thus, 2.14 moles are present in 1.29x10^24 hydrogen atoms in HF.
Explanation:
divide it by avogadro's constant
that is 6.02 × 10²³
1.2 × 10²⁴ / 6.02 × 10²³
= 2 mol
Adolescents should be careful about what they eat beacause
Answer:
it can affect your growth, like it can stunt your growth and could get health problems. pls make me brainiest.
why is chemistry a science
Answer:
Explanation:
Chemistry is often referred to as the central science because it joins together physics and mathematics, biology and medicine, and the earth and environmental sciences. Knowledge of the nature of chemicals and chemical processes therefore provides insights into a variety of physical and biological phenomena.
Answer:
Science chemistry is the investigation of issue, examining its design, properties and conduct to see what happens when they change in substance responses. Thusly, it very well may be viewed as a part of actual science, close by stargazing, physical science and studies of the planet including geography.
Explanation:
.Science chemistry is fundamental for meeting our essential requirements of food, clothing, cover, wellbeing, energy, and clean air, water, and soil. Substance advances improve our personal satisfaction in various ways by giving new answers for issues in wellbeing, materials, and energy use.
Here are the absolute best motivations to concentrate on science.
,Science assists you with figuring out your general surroundings. ...
,,Essential information on science assists you with perusing and
comprehend item marks.
,,,Science can assist you with pursuing informed choices. ...
,,Science is at the core of cooking. ...
,,,An order of science can assist with guarding you
what animal wins march mammal madness in 2021?
Answer:
turtles i like turtles
Explanation:
what are the difference between hemogeneous mixture and heterogeneous mixture ??
Answer:
Refer to attached file below
Hope it helps..
Have a great day :P
What is a sustainable consumption problem
Explanation:
Sustainable consumption refers to the proper use of good and services to meet basic needs and to avail better quality of life. Also, it minimizes the uses of natural resources, toxic materials, and emissions of waste and pollutants over the life cycle.
Which of the following is an example of kinetic energy?
O B. a stretched rubber band
O C. a piece of coal
O A. a battery
O D. a rolling ball
C3H8 combusts.
molar masses:
tricarbon octahydride: 44.11 g/mol
oxygen gas: 32 g/mol
water: 18.02 g/mol
carbon dioxide: 44.01 g/mol
a. Write a balanced chemical reaction.
b. If 5.34 g of tricarbon octahydride reacts with 25.2 g of oxygen gas, what is the limiting reactant? (tricarbon octahydride)
c. How many grams of water is produced? (8.72168)
d. How much excess reactant is left over after the reaction is complete? (5.84)
e. What is the percent yield of water if 6.98 g of water is actually produced in a laboratory experiment? (80.0459)
Answer:
The balanced chemical equation:
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l)
Explanation:
(a): The balanced chemical equation:
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l)
(b): Determine moles of each reactant:
(5.34 g C3H8) × (1 mol C3H8 / 44.11 g C3H8) = 0.1211 mol C3H8
(25.2 g O2) × (1 mol O2 / 32.00 g O2) = 0.7875 mol O2
According to the chemical equation above: n(C3H8) = n(O2)/5
Choose one reactant and determine how many moles of the other reactant are necessary to completely react with it. Let's choose C3H8:
n(O2) = 5 × n(C3H8) = 5 × 0.1211 mol = 0.6055 mol
The calculation above means that we need 0.6055 mol of O2 to completely react with 0.1211 mol C3H8.
We have 0.7875 mol O2 and therefore more than enough oxygen.
Thus oxygen (O2) is in excess and tricarbon octahydride (C3H8) must be the limiting reactant.
The limiting reactant is tricarbon octahydride (C3H8).
(c):
(5.34 g C3H8) × (1 mol C3H8 / 44.11 g C3H8) × (4 mol H2O/ 1 mol C3H8) × (18.02 g H2O / 1 mol H2O) = 8.726 g H2O
8.726 grams of water (H2O) is produced.
(d):
0.7875 mol O2 - 0.6055 mol of O2 = 0.182 mol O2 (excess O2)
(0.182 mol O2) × (1 mol O2 / 32.00 g O2) = 5.824 g O2
5.824 grams of oxygen gas (O2) is left over after the reaction is complete.
(e):
%H2O = (6.98 g / 8.726 g) × 100% = 79.99% = 80.00%
The percent yield of water (H2O) is 80.00%.
What is a solution with a pOH value of 2 considered?
a. Neutral
b. Base
c. Salt
d. Acid
DUE IN ONE MINUET HELP TwT
How many moles of NaOH would produce 10 moles of water in this reaction?
2NaOH + H2SO4 → Na2SO4 + 2H20
O A. 10
O B. 1
O C. 4
O D. 20
How many moles of ammonia gas can be formed from 14.0 L of hydrogen gas 300 K and a pressure of 2.0 atm
Answer:
n = 1.14 mol
Explanation:
Hello there!
In this case, according to the ideal gas law:
[tex]PV=nRT[/tex]
It is possible to solve for the moles of the gas given the volume, temperature and pressure:
[tex]n=\frac{PV}{RT}[/tex]
Thus, we plug in 14.0 L, 300 K and 2.0 atm to obtain:
[tex]n=\frac{2.0atm*14.0L}{0.08206\frac{atm*L}{mol*K}*300K}\\\\n=1.14mol[/tex]
Best regards!
An airplane flies with an average speed of 600 km/hr. How much time will it take to travel 1950 km?
Time = distance ÷ speed
Time = 1950 ÷ 600
Time = 3.25 hours ( 3 hours 15 minutes )
What type of substance do these statements describe?
- It is a long chain.
- It contains carbon, hydrogen, and oxygen atoms.
- It has double bonds.
- It is insoluble in water.
- It is used for energy storage in living things.
carbohydrate
lipid
monosaccharide
protein
answer:
protein i think
explanation:
protein has a long chain of amino acids
Answer:
B. lipid
Explanation:
Got it right.
PLEASE HELP QUICK AS POSSIBLE!!!!
How much heat is required for 25.0g of water to rise in temperature from 35.0 to 75.0°C?
Formulas~
*q = mcT (temp change)
*q = mH (phase change)
Answer:
4180J
Explanation:
(25.0g)(4.184J/g°C)(75°C-35.0°C)
(25.0g)(40.0°C)(4.184J/g°C)
(1.00*10³g°C)(4.184J/g°C) = 4184J
use sig figs:
4180J
Which one of the four levels of organization include the other three levels
A. Community
B. Ecosystem
C. Organism
D. Population
Answer:
Ecosystem
Explanation:
The levels of organization from lowest complexity to highest are:
species, population, community, ecosystem
3. Describe the process behind how students recover an individual's remains from a surface grave.
Answer:
By using the techniques of archeology.
Explanation:
Students recover an individual's remains from a surface grave by using the techniques of archeology field to scrape away the layers of soil from that remains in a way that the remains can't be damaged. If they find the remains within 10 centimeters of digging, they can dig down further in order to dig out all the remains safely. The instruments of archeology field are used because they are light and can be used to dig out fossils of ancient organisms.
How many grams are there in 7.50 x 1023 atoms of S
Explanation:
No of moles=7.50×10²³/6.023×10²³=1.245 moles
Grams=1.245×32=39.84grams
help please please help help help help help help help help!!!!!!!
how did chlorine atom attain saturation in potassium chloride and oxygen dichloride?
Answer:
because it was in the mixture
Explanation:
what is an epicenter of an earthquake
Answer:
It's the epicenter of an earthquake!
p.s. basically that means it's the center
Answer:
the epicentre of an earthquake is the location directly above the hypocenter the surface of the earth (p.s the hypocenter is the location where an earth quake starts )
Stoichmetric calculations must not be based on the limiting reagent
true or false
Answer:
Ture
Explanation:
Ture
True
True
True
The atomic number comes from... A. the number of protons. B. the number of electrons. C. the number of neutrons.
A:The number of protons
The diagram shows the molecular structure of butane. What is the chemical
formula for butane?
Butane
H
Н
Hн
н—с-с-с-с-Н
|| []
Н н н Н
А. 4C1ОН
В. С4Н10
С. 4CH10
D. HC4H
Answer: B
Explanation: sorry if I'm too late but i just did this question and that was the right answer
160
140
120
100
Temperature (°C)
80
60
40
20
0
0
2 4 6 8
10 12 14 16 18 20 22 24 26
Time (min)
.
At what temp will this substance freeze? 70 CV
At what temp will this substance condense? 70 C
How long will it take to release the heat of vaporization? 3 min
What is the melting point? 70 C
In what physical state did this substance end? Gas
All cooling processes, including phase changes, are Exothermic
At 90 C, what phase of matter is this substance? Liquid