81.3 g H₃PO₃
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableStoichiometry
Reaction Molar RatiosUsing Dimensional AnalysisExplanation:Step 1: Define
[RxN - Unbalanced] PCl₃ + H₂O → HCl + H₃PO₃
↓
[RxN - Balanced] PCl₃ + 3H₂O → 3HCl + H₃PO₃
[Given] 53.6 g H₂O
[Solve] x g H₃PO₃
Step 2: Identify Conversions
[RxN] 3 mol H₂O → 1 mol H₃PO₃
[PT] Molar Mass of H - 1.01 g/mol
[PT] Molar Mass of O - 16.00 g/mol
[PT] Molar Mass of P - 30.97 g/mol
Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol
Molar Mass of H₃PO₃ - 3(1.01) + 30.97 + 3(16.00) = 82.00 g/mol
Step 3: Stoich
[S - DA] Set up: [tex]\displaystyle 53.6 \ g \ H_2O(\frac{1 \ mol \ H_2O}{18.02 \ g \ H_2O})(\frac{1 \ mol \ H_3PO_3}{3 \ mol \ H_2O})(\frac{82.00 \ g \ H_3PO_3}{1 \ mol \ H_3PO_3})[/tex][S - DA] Multiply/Divide [Cancel out unit]: [tex]\displaystyle 81.3023 \ g \ H_3PO_3[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
81.3023 g H₃PO₃ ≈ 81.3 g H₃PO₃
A rain garden is a garden planted in a low-lying area where water tends to collect.
What benefit would rain gardens most likely provide for a community?
chemical composition of the gas in LPG cylinder??
LPG is composed hydrocarbons containing three or four carbon atoms. The normal components of LPG thus, are propane (C3H8) and butane (C4H10). Small concentrations of other hydrocarbons may also be present.
Iron has density 7.87 g/cm", which means that a
cube with side length 2.54 cm will have mass:
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The ____________________ is an upward force exerted by a fluid on any object in the fluid. a. fluid pressure c. fluid force b. buoyant force d. Bernoulli force
Answer:
B. The Buoyant Force
Explanation:
'The Buoyant Force is an upward force exerted by a fluid on any object in the fluid.'
Please help asap i really need it
Answer:
decomposers
Explanation:
is it multiple choice
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9)
What is the precipitate resulting from the double-replacement reaction BaCl2(aq) + 2NaOH(aq)?
A. Ba(OH)2
B. NaCl
C. BaNa2
D. CI(OH)
Answer:
A
Explanation:
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I need help with this question ASAP
Answer:
I think its A)
Explanation: im not sure im sorry
Water that falls from the clouds onto land could become ______ and travel to the ocean
A. Evaporation
B. Clouds
C. Condensation
D. Runoff
Answer:
runoff
Explanation:
...............................
Answer:
a.Evaporated
Explanation:
because water thet falls from the clouds into the land could become evaporation and travel to the ocean
To TWO significant figures, the measurement of 0.0255 g should be reported as
3 By referring to subatomic particles, explain why
an atom of
nitrogen is electrically neutral.
Answer:
Explained below
Explanation:
Atoms are said to be electrically neutral when they have the same number of protons and electrons.
Now, Nitrogen atom has a mass number of 14 and an atomic number of 7. This means that it has 7 number of protons and 7 number of electrons.
From the definition of electrically neutral atoms, it's clear that nitrogen falls into that category.
Ummm help? From start to finish
how do compaction and cementation cause sediments and form sedimentary rock
Answer:
Dissolved minerals in the ground water precipitate (crystallize) from water in the pore spaces forming mineral crusts on the sedimentary grains, gradually cementing the sediments, thus forming a rock
Explanation:
Expressed to the correct number of significant figures, the sum of two masses is 445.2 grams. Which two masses produce this answer?
a) 210.10g+ 235.00g
b) 210.100g + 235.10g
c) 210.1g + 235.1g
d) 210.10g + 235.10g
Answer:
All except a
Explanation: I like math. Pls mark brainliest.
The two numbers presented in the options, B, C, and D give a sum of 445.2 grams. So the correct options are B, C, and D.
What are significant figures?The number that is given as digits is established using significant figures. A significant depiction of numbers is carried by these digits. Frequently, significant numbers are employed in place of figures. By counting all of the values beginning with the first non-zero digit on the left, we may determine the number of significant digits. 13.56, for instance, has four significant digits.
The crucial or key digits that accurately represent the meaning of a certain number are known as the significant figures of that number. 7.864 contains four significant digits, for instance. These huge amounts give the accuracy of the numbers. Additionally, they are known as important digits.
Therefore, the correct options are B, C, and D.
Read more about significant figures, here
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Which of the following is a property of a non-metal.
luster
ductile
malleable
does not conduct heat and electricity
Answer:
luster
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Can anyone help me with this assignment? Will give Brainliest.
Answer:
i cant get the pdf im so sorry
Explanation:
Answer:
Yes if u need help?
Explanation:
Sharon puts a large pot of water on the stove to boil pasta. Then she starts to make a tomato sauce. When the sauce is cooking, she looks at the pot of water and thinks the water level is much lower than it was. How does this diagram of part of the water cycle help Sharon explain what happened to the pasta water?
Answer:
1. A
2. C
Explanation:
For the first question, we know that the water transformed into a gas. This fact eliminates choices C and D, primarily because they describe the change as "gas to liquid" instead of liquid to gas.
What separates B from A is that B is saying the liquid changed to a gas in response to sunlight, which is completely false and impertinent to the prompt.
A is the correct answer.
for the second question, we know that condensation causes clouds -- and that neither evaporation nor water vapor would clear clouds to make more of them, which eliminates choices B and D. Going back to condensation, the accumulation of water vapor plays a big role in the formation of clouds. While evaporation does play a part in [it] as well, condensation is what caused the sudden appearance of clouds in the troposphere.
C is the correct answer.
How many moles of water are contained in 3.58 x 10^24 molecules? 6.022
x 10^23 molecules = 1 mole
O 5.94 moles
0 10.0 moles
0 022 x 10^23 moles
0 3.00 moles
Answer:
Try everything
O 5.94 moles
0 10.0 moles
0 022 x 10^23 moles
0 3.00 moles
Explanation:
What are the sex cells of the plants that Mendel studied?
Answer:
alleles
Explanation:
Answer:
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Explanation:
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Predict: In each "Climate type" box, Highlight the condition you think will lead to the fastest weathering for the given weathering type.
Weathering type
Climate type
Frost wedging
Hot
Cold
Wet
Dry
Clay formation
Hot
Cold
Wet
Dry
Dissolving
Hot
Cold
Wet
Dry
Answer:
Frost Wedging - Hot and dry
Clay Formation - Cold and Wet
Dissolving - Cold, and dry
Explanation:
The frost wedging happen when the climatic condition is hot and dry. The dry weather compensates the heat and the rock wedging happens quickly. For clay formation the weather has to be cold and wet. The cold weather will make the sand indulge with rock particles resulting in the clay formation.
Two tennis balls are dropped at the same time. One tennis ball is dropped from the roof of a two-story house. The other tennis ball is dropped from 1 m off the ground. Which tennis ball will be moving the slowest as it hits the ground? Why?
1s2, 2s2, 2p6, 3s2, 3p6, 4s2
How many shells does this atom have?
Answer:
4
Explanation:
PLEASE HELP ANSWER ALL PARTS!!!
Answer:
The student should have multiplied the molar mass, which was not found, by the number of moles to get an answer of 925grams of Ca(OH)2.
Please find the correct step below
Explanation:
According to the question attached, the student was asked to find the mass in grams of a 12.5mol of Ca(OH)2.
Using the formula;
mole = mass ÷ molar mass
Molar mass of Ca(OH)2 = 40 + (16 + 1)2
= 40 + 17(2)
= 40 + 34
= 74g/mol
From the above formula;
Mass in grams = mole × molar mass
Mass (g) = 12.5 × 74
Mass (g) = 925grams of Ca(OH)2.
why an aspirin tablet works faster if it is crushed rather than swallowed whole?
Answer: because the tablet is already crushed and is easy for the organism to absorb instead of having to break it down
Explanation:
What is the name for: CO2?
AND
Describe the steps for how you determined this.
Answer:
carbon dioxide
C = carbon
O2 = dioxide
The name for a mixture in which all samples are made up of the same
proportions of matter is:
Answer: homogeneous mixture
Explanation:
El oxígeno y el azufre reaccionan con el cobre para formar óxido de cobre (CuO) y sulfuro de cobre (CuS), respectivamente. ¿Qué cantidad de azufre reacciona con el oxígeno? 1° Cu + O2 =2CuO 2° Cu + S = CuS 3° S + O2 = 2SO
The given reaction is an example of displacement reaction. Here, one mole of oxygen reacts with one mole of oxygen molecules. Hence theoretically 32 g of sulphur needs 32 g of oxygen.
What is displacement reaction?Displacement reactions are a kind of reactions where one element or group is displaced with other element or group. There are both single displacement and double displacement reaction.
The reaction of sulfur oxide with metallic copper producing copper oxide and copper sulphide is an example of single displacement reaction. The prior reaction for this is the combination of sulfur and oxygen.
Here, one mole of oxygen reacts with one mole of oxygen molecules. Hence theoretically 32 g of sulphur needs 32 g of oxygen. Thus each is reacting in 1 :1 ratio and giving the oxide of sulfur.
To find more on displacement reaction, refer here:
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The English translation of your question is as follows:
Oxygen and sulfur react with copper to form copper oxide (CuO) and copper sulfide (CuS), respectively. How much sulfur reacts with oxygen? 1° Cu + O2 =2CuO 2° Cu + S = CuS 3° S + O2 = 2SO
Choose the aqueous solution below with the highest boiling point. These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable.
The question is incomplete, the complete question is;
Choose the aqueous solution that has the highest boiling point. These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable. 0.100 m C6H12O6 0.100 m AlCl3 0.100 m NaCl 0.100 m MgCl2 They all have the same boiling point.
Answer:
AlCl3 0.100 m
Explanation:
Let us remember that the boiling point elevation is given by;
ΔTb = Kb m i
Where;
ΔTb = boiling point elevation
Kb = boiling point constant
m = molality of the solution
i = Van't Hoff factor
We can see from the question that all the solutions possess the same molality, ΔTb now depends on the value of the Van't Hoff factor which in turn depends on the number of particles in solution.
AlCl3 yields four particles in solution, hence ΔTb is highest for AlCl3 . The solution having the highest value of ΔTb also has the highest boiling point.
How much 2.0 M NaCl solution would you need to make 250 mL of 0.15 M NaCl solution?
Answer:
18.75 mL
Explanation:
(M1)(V1)=(M2)(V2)
(2.0 M)(V1)=(0.15 M)(250 mL)
(2.0)(V1)=37.5
Divide 2.0 on both sides
V1=18.75 mL
Question 5
4
What type of plate boundary involves plates moving away from each other?
convergent
divergent
transform
Answer:
A divergent boundary!
Explanation:
A divergent boundary occurs when two plates move away from each other, while a convergent boundary is when two plated collide. And a transform plate boundary is when two plates horizontally slide against each other.
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Answer:
The answer is Divergent boundaries
A quanta of electromagnetic energy is called *
Answer: A quantum of electromagnetic energy is called a photon. Also, do you mean a quantum because I don't think a quanta is a thing
Explanation: