Answer:
See Explanation
Explanation:
a) The word equation is;
silver chlorate + sodium phosphate ------> silver phosphate + sodium chlorate
b) The balanced reaction equation of the reaction is;
3AgClO3(aq) + Na3PO4(aq) ------->Ag3PO4(s) + 3NaClO3(aq)
c) amount of silver chlorate reacted = 287 g/191.319 g/mol = 1.5 moles
3 moles of silver chlorate yields 1 mole of silver phosphate
1.5 moles of silver chlorate yields 1.5 * 1/3 = 0.5 moles of silver phosphate
Amount of sodium phosphate reacted = 52.8 g/163.94 g/mol = 0.3 moles
1 mole of sodium phosphate yields 1 mole of silver phosphate
0.3 moles of sodium phosphate yields 0.3 moles of silver phosphate.
Hence the maximum number of grams mass of silver phosphate produced = 0.3 moles * 418.58 g/mol = 125.6 g
d) The excess reactant is silver chlorate while the limiting reactant is sodium phosphate
e) 3 moles of silver chlorate reacts with 1 mole of sodium phosphate
x moles of silver chlorate reacts with 0.3 moles of sodium phosphate
x = 3 * 0.3 = 0.9 moles of silver chlorate reacted
Mass of 0.9 moles of silver chlorate = 0.9 moles * 191.319 g/mol = 172 g of silver chlorate
Hence mass of silver chlorate left over = 287 g - 172 g = 115 g
Alcohol and water are placed into closed-end manometer, in order to measure the vapor pressure of each of the 2 liquids at 25oC. the figure represents the observation few hours after placing the liquids.
a) Calculate the Vapor pressure of alcohol P vapor (alcohol) in mmHg and atm.
(choose 2 answers!)
1) Vapor pressure in mmHg = 100mm Hg
2) Vapor pressure in mmHg = 50mm HG
3) Vapor pressure in atm = 0.13 atm
4) Vapor pressure in atm = 0.26 atm
Answer:
3) Vapor pressure in atm = 0.13 atm
Explanation:
How many oxygen atoms are in 75 g of so3
Explanation:
nso3=75/80 (80=Mr of so3)
n of o= 75x3/80
x of o= 75x3/80x6.02x10 powered by 23
then, the anwer is
[tex] {10}^{23} \times 16.93125[/tex]
sry if im wrong
There are approximately 1.204 x 10²⁴ oxygen atoms in 75 g of SO₃.
To calculate the number of oxygen atoms in 75 g of SO₃, we need to consider the molar mass of SO₃ and Avogadro's number.
The molar mass of SO₃ is calculated as follows:
Sulfur (S) = 32.07 g/mol
Oxygen (O) = 3 x 16.00 g/mol = 48.00 g/mol
Total molar mass of SO₍ = 32.07 g/mol + 48.00 g/mol = 80.07 g/mol
Next, we need to determine the number of moles of SO₃ in 75 g:
moles = mass / molar mass = 75 g / 80.07 g/mol ≈ 0.9369 mol
Since each molecule of SO₃ contains 3 oxygen atoms, we can calculate the number of oxygen atoms by multiplying the number of moles of SO₃ by Avogadro's number (6.022 x 10²³ atoms/mol) and then multiplying by 3:
Number of oxygen atoms = 0.9369 mol x 6.022 x 10²³ atoms/mol x 3 = 1.604 x 10²⁴ atoms
Therefore, there are approximately 1.204 x 10²⁴ oxygen atoms in 75 g of SO₃.
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Which of the following could be the hypothesis supported by an investigation that demonstrates the law of conservation of mass in relation to chemical reactions?
A. If the reaction obeys the law of conservation of mass, then mass will be the same before and after the reaction.
B. If the reaction obeys the law of conservation of mass, then mass will increase after the reaction.
C. If the reaction obeys the law of conservation of mass, then mass will be different before and after the reaction.
D. If the reaction obeys the law of conservation of mass, then mass will decrease after the reaction.
According to the law of conservation of mass, mass is neither created nor destroyed in a chemical reaction. If the reaction obeys the law of conservation of mass, the mass before and after the reaction will be the same.
What does the law of conservation of mass?Any element's mass at the start of a reaction will equal its mass at the end of the reaction. Accounting for all reactants and products in a chemical reaction results in the same total mass at any point in time in any closed system.
When coal, for example, is burned, the carbon atom transforms into carbon dioxide. The carbon atom undergoes transformation from solid to gas, but its mass remains constant.
According to the law of conservation of mass, the amount of mass that enters a chemical reaction in the form of reactants must equal the amount of mass that exits the reaction process in the form of products. This is only possible in a closed system. For example, if 2g of reactant A reacts with 32g of reactant B, the mass of the product AB formed is 34g.
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Question 5 How many grams of Hydrogen will be created from 5 moles of Aluminum? 2 Al + 3 H2SO4 – Al2(SO4)3 + 3H2
Answer:
Solution given:
2 Al + 3 H2SO4 – Al2(SO4)3 + 3H2
2mole +3mole. --- 1 mole + 3 mole
27×2g. +3×98g-------- 342,g. + 6g
we have
2 mole of Al gives. 6g of h2
5 moles of Al gives 6/2×5=15g of hydrogen
15 g is your answer
What would be the pH of a solution of a solution with a hydrogen ion concentration of 0.001 M?
0001 M HCl is the same as saying that 1 *10-4 moles of H+ ions have been added to solution. The -log[. 0001] =4, so the pH of the solution =4.
PS.
13. Calculate the number of representative particles of each substance.
a. 11.5 mol Ag
c. 0.150 mol NaCl
b. 18.0 mol H2O
d. 1.35 x 10-2 mol CH4
Using the ideal gas law, what will be the volume occupied by 1.46 moles of helium at
0.982 atmospheres and 13.0°C? (R = 0.0821 L'atm/mol-K)
Answer:
34.91 L
Explanation:
Ideal gas law -> PV=nRT
convert C to K -> 13+273 = 286
plug numbers in
(.982)V=(1.46)(.0821)(286)
V = 34.91 L
if there is a bottle of grape juice with 20% juice and there is 1000mL of total drink, how many mL of water
is in the bottle?
Answer:
760ml of water
Explanation:
Answer: 800mL
Explanation:
20% of 1000mL is 200. 1000mL - 200mL is 800mL
What is a precipitation
reaction?
Answer:
A precipitation reaction is one in which substances in solution are mixed and an insoluble product is made. The insoluble product is called a precipitate and can be seen as a solid forming in the reaction mixture.
¿Cuál de estas sustancias exhibe combustibilidad?
El acero.
El hierro.
El vidrio.
El papel.
Answer:
Acero
Explanation:
Question 7 of 10
What coefficient would the OZ have after balancing C3Hs + O2 → CO2 + H20?
O A 5
OB. 4
O c. 2
OD 3
SUBMIT
Answer:
A.5
Explanation:
topic:
surface area
(multiple choice)
irrelevant answers will be reported
What is the measure of the indicated angle? 37∘ 53∘ 180∘ 127∘
Answer:
53∘
plz mark me as brainliest.
The gas in an aerosol can is at a pressure of 3.16 atm at 32.2°C. What would the gas pressure in the can be at 22.9°C?
Answer:
The pressure of the gas would be 3.06 atm
Explanation:
Amonton's law states that the pressure is directly proportional to the absolute temperature of a gas under constant volume. The equation is:
P1 / T1 = P2 / T2
Where P1 is the initial pressure = 3.16atm
T1 is initial absolute temperature = 273.15 + 32.2°C = 305.35K
P2 is our incognite
And T2 is = 273.15 + 22.9°C = 296.05K
Replacing:
3.16atm / 305.35K = P2 / 296.05K
3.06 atm = P2
The pressure of the gas would be 3.06 atmA farmer wants to build a pond for her cows. What step must she take in order to build the pond?
A. Dig into the zone of aeration.
B. Place a permeable material on the ground.
C. Keep the soil moist.
D. Place an impermeable material on the ground.
Answer:
Option A:
Dig into the zone of aeration
Explanation:
Within the lithosphere of the earth's surface, the zone of aeration is the zone directly above the water table, with a lot of pore spaces within the rocks. These pore spaces contain air and water, which can be used to water the cows.
Once the zone of aeration has been dug into, the farmer can tap into the underground reserve of water, which is stored within the pores of rocks. This water can now sip into the hole that was dug up by the farmer, forming a pond for the cows.
A nuclide is defined as?
Answer:
Nuclide, , also called nuclear species, species of atom as characterized by the number of protons, the number of neutrons, and the energy state of the nucleus. ... The term nuclide is not synonymous with isotope, which is any member of a set of nuclides having the same atomic number but differing mass number.
Explanation:
Answer:
a distance isotope of an atom
Explanation:
Consider the combustion of pentane (C5H12)
a. Write the complete, balanced equation:
b. Determine the limiting reactant if 62.5 grams of pentane combine with 107 L of oxygen gas at STP.
c. If 54.6 L of CO2 gas is produced in the experiment, what is the percent yield?
Explanation:
C5H12 + 8O2 → 5CO2 +6H2O
balanced✓
stable✓
This is Science
How does the process of photosynthesis help the overall life on earth? (Hint: what does it produce that living things need to live?)
Answer: Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.
Explanation:
If energy was added to solid, what state would it change to
A. Super solid
B. Plasma
C. Liquid
Answer:
Explanation:
The answer is C Liquid
Write the Keq for the dissolving of salt: NaCl → Na+ + Cl-.
The equilibrium constant of this reaction can be called the solubility product and is written as; Ksp = [Na^+] [Cl^-]
What is equilibrium constant?The term equilibrium constant refers to the number that shows the extent to which reactants are converted into products.
In this case, the equilibrium constant of this reaction can be called the solubility product and is written as; Ksp = [Na^+] [Cl^-]
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pls ans quicckk two q
Answer:
there is nothing here
Explanation:
How many moles of Manganese there in are 5.76 x 10(15) atoms of Mn?
How many moles of sodium chloride are in a 431.6 g sample of NaCl?
Answer:
1. 9.57 × 10^-9 moles.
2. 7.38mol
Explanation:
1.) To find the number of moles there are in the number of particles in an atom, we divide the number of particles (nA) by Avagadro's constant (6.02 × 10^23)
Hence, to find the number of moles (n) of Manganese (Mn), we say:
5.76 x 10^15 atoms ÷ 6.02 × 10^23
5.76/6.02 × 10^(15-23)
= 0.957 × 10^-8
= 9.57 × 10^-9 moles.
2.) Mole = mass/molar mass
Molar mass of sodium chloride (NaCl) = 23 + 35.5
= 58.5g/mol
mole = 431.6 g ÷ 58.5g/mol
mole = 7.38mol
What is one disadvantage of hydroelectric energy?
What is the velocity of a wave with a wavelength of 0.03 m and a frequency of
120 Hz?
A. 0.28 m/s
B. 4000 m/s
C. 3.6 m/s
D. 2.5x 10-4 m/s
Answer:
A
Explanation:
Got a calculation of 8.05297
Answer:
C. 3.6 m/s
Explanation:
I just took a test on a-pe-x and it was correct! :)
Um help plzzzzzzzzzzz
1.
Events in which molten rock spews out of
the mantle as ash, lava, and gases
Answer:
Landslides, Volcanoes, Earthquakes, and Floods. A opening in the Earth's surface through which melted rock, gases, and ash escape. Events in which molten rock spews out from the mantle to the surface of Earth as ash, lava, and gases
Explanation:
In describing weather completely, it is important to include, among other aspects, air pressure, precipitation, and humidity. Which of the following statements is false?
Wind is the movement of air that results from differences in air pressure.
Precipitation is a form of water that falls to Earth’s surface from the clouds.
Air typically moves from areas of lower pressure to areas of higher pressure.
When the temperature of the air cools to the dew point, the air is saturated, and water droplets will form.
Answer:
The false statement is - Air typically moves from areas of lower pressure to areas of higher pressure.
Explanation:
The wind is the air movement that takes place due to pressure differences or the temperature difference of air. Air moves from the higher pressure area to the lower pressure area. The more the difference will be the faster the air will move to a low-pressure area.
Precipitation is a form of water that falls from clouds to earth, it can be rainfall, snow and other forms. Dew is one of the forms that occur when the air cools down to the dew point and form droplets.
Answer:
Air typically moves from areas of lower pressure to areas of higher pressure.
Explanation:
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answer this question no links
Answer:
it is b, a stethiscope is the thing they put on your heart
Explanation:
ALEX RODE HIS BIKE
60 km in 4 Hours. How FAST WAS HE GOING
Answer:
15 km/hour
Explanation:
You need to find how fast he was going per hour.
Answer: 15
Divide. 60 ÷ 4
This gives us 15. So, Alex was going 15 mph
A 1.0 g sample of which substance contains the largest
number of molecules?
Answer:
Hydrogen (since this is all the info I'm working with)
Explanation:
Since we need to know how which substance has the most amount of molecules, we would need to look at the Atomic masses of these elements. Hydrogen has an atomic mass of 1.01g/mol whereas something like oxygen has an atomic mass of 16.00g/mol. Judging this, we can determine since a mole is made up of 6.02*10^23 molecules(Avogadro's number), and we have 1/1.01grams of hydrogen, we can deduce that Hydrogen would contain the largest amount of molecules
