A sample of concentrated nitric acid has a density of 1. 41 g/ml and contains 70. 0% hno3 by mass. What is the molarity of the solution?.
Answers
The molarity of the solution is 15.1 M
Molarity of a solution can be calculated using the formula;
Molarity (M) = moles of solute (n) / volume of solution in liters (V)
Here, the density of nitric acid is given as;
Density = 1.41 g/mL
70% of HNO₃ means that 100 g of nitric acid contains 70 g HNO₃.
So, 1 L of the solution contains;70 × 1000 / 63 = 1111.1 g of HNO₃
Then the number of moles of HNO₃ in the solution is calculated using the formula;
n = m / M
where n = moles of HNO₃
m = mass of HNO₃
= 1111.1 g
M = molar mass of HNO₃
= 63 g/mol
Now;
n = 1111.1 / 63 = 17.62 mol
Hence the molarity of the solution is;
M = n / V
where V is volume in L of
nitric acid weighs = 1.41 kg
= 1410 g or 1.41 L
So, the volume of the solution containing 17.62 mol HNO₃ is;
V = (17.62 mol) / (1.41 L) = 12.47 L
Hence, the molarity of the solution is;
M = (17.62 mol) / (12.47 L) = 15.1 M
Therefore, the molarity of the solution is 15.1 M.
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Related Questions
how many grams of sodium hydroxide are required to prepare a 200 ml solution of a 10% (weight per volume) solution
Answers
3.60 grams of sodium hydroxide are required.
Calculation :
given molarity and volume of the solution. The only problem is that the volume is given in ml instead of L. This problem can be solved using the following conversion factors::
1000 mL=1 L
Therefore, if we divide 200 mL by 1000 mL, we will obtain a value of 0.200 L.
The equation for molarity (concentration) is:
Concentration = Volume of solution (L)/Moles of solute (moles)
Thus, Concentration × Volume = Moles of solute
⇒0.450 M×0.200 L= Moles of solute
⇒ Moles of solute =0.09 moles
And thus, mass of NaOH = moles of NaOH× molar mass
⇒ Mass of NaOH=0.09 mol× 40.0 g /mol
⇒ Mass of NaOH=3.60 g
Therefore, 3.60 g of NaOH is required.
Molarity is the number of moles of solute per liter of solution. For example, when salt is dissolved in water, the salt becomes the solute and the water becomes the solution. 1 mole of sodium chloride weighs 58.44 grams. Dissolving 58.44 grams of NaCl in 1 liter of water results in a 1 molar solution, abbreviated as 1 M.
To find it, it is the number of moles of solute divided by the total volume of the solution in liters.
Molarity is also called molarity and is denoted by 'M'. For example, the molarity of a 1M sodium chloride solution in water is 1M. The number of moles of a solute can be calculated by dividing the mass by the molecular weight of the solute.
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In order to make a calculation to determine the molality of a solution what information would you need?
Answers
To calculate the molality of a solution, you need the number of moles of solute and the mass of the solvent in kilograms.
In order to make a calculation to determine the molality of a solution, you would need the following information:
The number of moles of solute
The mass of the solvent in kilograms
The molality of a solution is defined as the number of moles of solute per kilogram of solvent. So, to calculate the molality, you would simply divide the number of moles of solute by the mass of the solvent in kilograms.
For example, if you have a solution that contains 0.5 moles of solute and the mass of the solvent is 2 kilograms, then the molality of the solution would be 0.25 molal.
Here is the formula for calculating molality:
molality = moles of solute / mass of solvent (in kilograms)
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How did Buddhism become a formal religion after the death of the Buddha?
Followers continued to share the Buddha's teachings.
Buddhism was replaced with Jainism.
The Buddha had written down his teachings in laws.
Asoka's religious intolerance allowed only one religion.
Answers
After the death of the Buddha, Buddhism became a formal religion through the efforts of his followers, who continued to spread his teachings and organized into communities known as sanghas. Over time, these sanghas developed a system of governance, with monastic councils, hierarchical structures, and formalized practices and rituals.
One key factor in the formalization of Buddhism was the development of the Tripitaka, a collection of the Buddha's teachings, which were written down in the Pali language and preserved by monastic communities. The Tripitaka contains three major sections: the Vinaya Pitaka, which outlines the rules and guidelines for monastic life; the Sutta Pitaka, which contains the Buddha's discourses on a wide range of topics; and the Abhidhamma Pitaka, which provides a detailed analysis of Buddhist psychology and philosophy.
The spread of Buddhism was also facilitated by the patronage of rulers such as Asoka, who supported the religion and helped to spread it throughout his empire. However, this support was not always consistent, and Buddhism faced periods of persecution and decline in various parts of the world. Despite these challenges, Buddhism has continued to evolve and adapt over the centuries, with different schools and traditions emerging in different regions. Today, Buddhism is practiced by millions of people around the world, and continues to offer a unique and powerful perspective on the nature of reality, the human condition, and the path to liberation.
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Match each definition to term
Distance divided by time is ?
Speed with a specific direction I’s?
Is the measurement of change in an object's velocity is?
Answers
Speed, Velocity and Acceleration are the three terms that matches the definitions.
Speed refers to the distance covered by an object per unit time. It is in other words refers to as Distance divided by time. The SI unit of Speed is m/s and it is a scalar quantity which has only magnitude but no direction.
It is mathematically referred to as,
Speed = Distance/Time
Velocity refers to the speed in specific direction. Velocity refers to the displacement made by an object in unit time. Its SI unit is similar to the SI unit of speed, that is m/s. It is a vector quantity. A vector quantity usually has both magnitude and direction.
The rate of change in the velocity refers to acceleration. It is simply the difference of final velocity and initial velocity divided by time. Its SI unit is m/s². It is mathematically represented as
Acceleration = (Final velocity - initial velocity)/Time
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which scientist developed the nuclear model of the atom?
Answers
Answer:
Earnest Rutherford
Explanation:
From what I beleive, Rutherford had created the nuclear model
All ions and isotopes of an atom share the same____
A)atomic number
B)mass number
C)radio waves
D)charge
Answers
Answer:
A atomic number
Explanation:
not too sure
Cansjhdhsbdhajajajhsbsbshs hahahah she jansbsbsns haha be safe
Answers
Answer:
wait what?
Explanation:
brainliest pls
Post 10: Synthesis of t-Butyl Chloride
Why are rearrangements rare with tertiary alcohols but not with secondary or primary
alcohols?
Answers
Rearrangements are rare with tertiary alcohols but not with secondary or primary alcohols due to the increased stability of the carbocation intermediate formed during the reaction.
In the synthesis of t-Butyl Chloride, the reaction involves the conversion of t-butyl alcohol (a tertiary alcohol) to t-butyl chloride. During this reaction, the alcohol molecule undergoes a nucleophilic substitution reaction where the hydroxyl group is replaced by a chlorine atom. In this process, the alcohol molecule is converted into a carbocation intermediate before the chloride ion attacks to form the final product.
The rarity of rearrangements with tertiary alcohols can be attributed to the increased stability of the carbocation intermediate formed. Tertiary carbocations are more stable compared to secondary or primary carbocations due to the presence of three alkyl groups which provide electron-donating effects and stabilize the positive charge.
The stability of the carbocation reduces the likelihood of rearrangement reactions, where the carbon skeleton is rearranged to form a more stable carbocation intermediate. In contrast, secondary and primary carbocations are less stable and more prone to rearrangements.
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Use the rock cycle diagram to explain how a sedimentary
rock could become a metamorphic rock.
Answers
The rock cycle diagram shows that sedimentary rocks are formed from the weathering and erosion of pre-existing rocks, which are then transported and deposited in layers. Over time, these layers can become compacted and cemented together, forming a sedimentary rock.
If this sedimentary rock is then subjected to high temperatures and/or pressures, such as through burial deep within the Earth's crust, it can undergo metamorphism. During metamorphism, the minerals in the rock can undergo changes in composition and/or texture, resulting in a new rock with different physical and chemical properties.
For example, a shale sedimentary rock could be subjected to high temperatures and pressures, causing the clay minerals within the rock to recrystallize into new minerals such as mica or quartz. This would result in a new metamorphic rock such as slate or phyllite.
Therefore, through the process of metamorphism, a sedimentary rock can be transformed into a new metamorphic rock with different physical and chemical properties.
Identify the neutralization reaction. O2H 3PO 4 + 3Ba(OH) 2 6H 20+ Ba(PO 4) 2 O2 NO 2 202 + N 2 PO 4 2NH3 + H2SO 4 → (NH 4) 2SO4 O 3Pb + 2H 3PO4 → 3H 2 + Pb 3(PO 4) 2
Answers
The neutralization reaction is:
O2H 3PO4 + 3Ba(OH) 2 → 6H 2O+ Ba(PO 4)2
What is neutralization reaction?A neutralization reaction is a type of chemical reaction that occurs between an acid and a base, resulting in the formation of a salt and water.
In this reaction, the hydrogen ions (H+) from the acid react with the hydroxide ions (OH-) from the base to form water (H2O), which neutralizes the acidic and basic properties of the reactants. The remaining ions then combine to form a salt.
The general equation for a neutralization reaction is:
Acid + Base → Salt + Water
For this question, the chosen answer is the neutralization reaction because an acid (H3PO4) and a base (Ba(OH)2) react to form water and a salt (Ba(PO4)2).
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When does the shape of a molecule affect its polarity?
A. When the molecule contains ionic bonds
B. When the molecule contains polar bonds
C. When the molecule contains hydrogen bonds
D. When the molecule contains nonpolar bonds
Answers
Answer:
B When the molecule contains polar bonds.
Explanation:
AP-EXpert
The shape of a molecule affect its polarity, when the molecule contains polar bonds because polarity depends on polar bonds.
What is the effect on polarity?The polarization of a molecule greatly depends on the shape of the molecule. The net dipole moment occurs only due to the uneven distribution of electrons between the two atoms.
So we can conclude that the shape of a molecule affect its polarity, when the molecule contains polar bonds because polarity depends on polar bonds.
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Who is best associated with Psychoanalysis?
-Wilhelm Wundt
-Sigmund Freud
-William James
-None of the above
-Other:
Answers
Answer:
None of the above
Explanation:
Erikson's was a student of freud's and expanded of his theory of psychosexual development by emphasizing the importance of culture in parenting practices and motivations and adding three stages of adult development.
Explain why pentane has a higher boiling point than butane
Answers
Answer: Larger molecules have stronger London forces.
Explanation:
Pentane therefore has a stronger force than butane.
What is the mass of 2 mol of copper
Answers
If you had 2 mols of this, you would simply multiply!
2(63.546) = 127.092
What are the end products of photosynthesis? oxygen and carbohydrate water and carbon dioxide water and oxygen carbohydrate and water
Answers
The end products of photosynthesis are oxygen and carbohydrate.
The overall balanced eqation for photosynthesis reaction:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
CO₂ is carbon dioxide or carbon(IV) oxide
H₂O is water molecule
C₆H₁₂O₆ is carbohydrate
O₂ is oxygen molecule
Light energy is transformed into a chemical energy, that is stored in a carbohydrate molecules (glucose), which are synthesized from carbon dioxide and water.
Plants (not animals) convert a solar energy into the chemical energy of sugars (food).
The pigment chlorophyll absorbs one photon and loses one electron (it passed throw an electron transport chain) in the light-dependent reactions.
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paringly Soluble Salt (A) Fill in the table Step Procedure Mixing 0.1 M Na.co, and 0.1 M CaCl2 Observation made Percipi Eate (B) Write the balanced chemical reaction taking place when Naco, is mixed with CaCl, (this is a double replacement reaction). Include all phases and write correct product formulas. (C) Write the net ionic equation taking place for the reaction in (B). (This (4) is your equilibrium reaction) (4) (D) Fill in the table Step Procedure Observation Adding 6 M HCI destroyed the percipitate, The added HCl (the stress) reacts according to the following equations: 2H+ (aq) + CO, HCO, (aq) → H20 (1) + CO:8) (E) Look at the net ionic reaction (your equilibrium reaction (4) above). Which ion from (4) did * react with? (F) Why did the calcium carbonate decompose when the HCI was added? (G) Explain how Le Chatelier's principle was demonstrated in this experiment. How did the addition of H" (aq) stress the equilibrium reaction and howvdid the reaction shifted to compensate for the stress.
Answers
Na2CO3 (aq) + CaCl2(aq) → CaCO3 (s) + 2 NaCl (aq) is balanced chemical reaction
"Balancing by inspection," often known as trial and error, is the most fundamental and widely used technique for balancing chemical equations. Several strategies can be employed to lessen the number of tries and errors necessary to generate an equation that is ultimately suitably balanced. The conservation of matter criterion must be followed in order for a chemical equation to be considered balanced. There are two different kinds of numbers that are employed in chemical equations. In the chemical formulations of the reactants and products, subscripts are employed. Additionally, coefficients are used to show how many molecules of a certain substance are used up or produced before chemical compositions.
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Why do you think Earth's plates move on the surface?
Answers
Explanation:
heat in the Earth's core
How many moles of solid sodium acetate would have to be added to 2.0 L of a 0.266 M acetic acid solution to achieve a buffer of pH = 5.11? Assume there is no volume change. The Ka of acetic acid is 1.8×10−5.
Answers
We need to add 100.87 grams of solid sodium acetate to 2.0 L of a 0.266 M acetic acid solution to achieve a buffer of pH = 5.11.
To make a buffer solution of pH 5.11, we need to use the Henderson-Hasselbalch equation:
pH = pKa + log([A⁻]/[HA])
where pH is the desired buffer pH, pKa is the dissociation constant of acetic acid, [A⁻] is the concentration of acetate ions, and [HA] is the concentration of acetic acid.
Rearranging this equation, we get:
[A⁻]/[HA] = \(10^(pH-pKa)}\)
Substituting the given values, we get:
[A⁻]/[0.266 M] =\(10^{5.11}\)(- (-log10(1.8×10⁻⁵)))
Solving for [A⁻], we get:
[A⁻] = [HA] x 10^(pH - pKa) = 0.266 M x 10^(5.11 - (-log10(1.8×10⁻⁵))) = 1.23 M
This means that we need to add enough solid sodium acetate to achieve a concentration of 1.23 M in the solution.
The balanced chemical equation for the dissociation of sodium acetate in water is:
CH₃COONa(s) → CH₃COO^-(aq) + Na^+(aq)
From this equation, we can see that one mole of sodium acetate produces one mole of acetate ions. Therefore, we need to add 1.23 moles of sodium acetate to the solution.
The molar mass of sodium acetate is 82.03 g/mol, so the mass of sodium acetate required is:
mass = moles x molar mass = 1.23 mol x 82.03 g/mol
= 100.87 g
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PLEASE HELP ASAP I WILL MARK AS BRAINLYEST
Answers
Answer:D
Explanation:I think
explanation; a major after effect of erosion is increased pollution and sedimentation in bodies of water. because of this, waterways can become clogged and many species of fish can die, resulting in higher chances of flooding.
write four facts of cross breeding plants
Answers
Answer:
Plant breeding
Plant breeding is the science of changing the traits of plants in order to produce desired characteristics. It has been used to improve the quality of nutrition in products for humans and animals.
Explanation:
Why do animals and plants have different habitats?
Answers
Answer:
Why do animals and plants have different habitats?
This is because the planet has different climates and different environments in every continents, organisms have evolved and adapted to these factors, that is why they have different habitats as well.
It is safe to say that organisms and their environment really are interrelated and needs each other in order to survive and continue.
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Monoatomic and simple polyatomic anoions are given the suffix ___
Answers
The suffix given to monoatomic and simple polyatomic anions is "-ide". This suffix indicates that the ion is a negatively charged ion formed by gaining electrons from another element or molecule.
Monoatomic and simple polyatomic anions are given the suffix "-ide. Examples of monoatomic anions include chloride (Cl⁻), fluoride (F⁻), and oxide (O²⁻), while examples of simple polyatomic anions include sulfide (S²⁻), nitride (N³⁻), and phosphide (P³⁻).
Understand the terms: Monoatomic anions are negatively charged ions consisting of a single atom, while simple polyatomic anions consist of multiple atoms but still have a single negative charge.
The naming convention: When naming these anions, the suffix "-ide" is added to the root of the element's name.
So, the suffix for both monoatomic and simple polyatomic anions is "-ide."
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which response correctly identifies all the interactions that might affect the properties of bf3
Answers
The properties of BF₃ are affected by a variety of different interactions. The most important of these is the covalent bond between the three atoms, which is the primary source of stability for this molecule.
Additionally, the molecule can be affected by intermolecular forces such as hydrogen bonding and London dispersion forces. These forces help to hold the three atoms together and also affect the molecular shape. Finally, BF₃ can also be affected by electromagnetic interactions, such as dipole-dipole interactions and induced dipole interactions.
All of these interactions together contribute to the overall properties of the molecule, such as its melting and boiling points, viscosity, and solubility.
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Correct question is :
what response identifies all the interactions that might affect the properties of bf₃?
what are the percentage dissociations of h (g), o (g),and i (g) at 2000 k and a total pressure of 1 bar?
Answers
The percentage dissociation of H₂ is 0.0814%.
The percentage dissociation of O₂ is 0.0335%.
The percentage dissociation of I₂ is 94.6%.
The balanced chemical equation:
H₂(g)⇄2H(g)
ΔG0=2(106,760 J/mol)
-RT lnK=2*106,760 J/mol
-(8.3145 J/K/mol)(200 K) ln K=2*106,760 J/mol
Solving for K,
K=2.65*10^-6
On calculation, the percentage dissociation of H₂ is 0.0814%.
The balanced chemical equation:
O₂(g)⇄2O(g)
ΔG0=2(121552 J/mol)
-RT lnK=2*121552 J/mol
-(8.3145 J/K/mol)(200 K) ln K=2*121552 J/mol
Solving for K,
K=4.48*10^-7
On calculation, the percentage dissociation of O₂ is 0.0335%.
The balanced chemical equation:
I₂(g)⇄2I(g)
ΔG0=2(-29410 J/mol)
-RT lnK=2*-29410 J/mol
-(8.3145 J/K/mol)(200 K) ln K=2*(-29410) J/mol
Solving for K,
K=34.37
On calculation, the percentage dissociation of I₂ is 94.6%.
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Describe a method for making pure crystals
Answers
The method that is used for the making of copper sulphate crystals would be discussed below in details.
What are crystals?Crystals are solid structures of a compound which are arranged in a definite pattern.
The method of production of pure crystals of copper sulphate is discussed below:
place some sulfuric acid in a conical flask and warm it in a water bathadd a spatula of copper oxide powder to the acid and stir with a glass rodcontinue adding copper oxide powder until it is in excessfilter the mixture to remove the excess copper oxidepour the filtrate (the copper sulfate solution) into an evaporating basinheat the copper sulfate solution to evaporate half of the waterpour the solution into a watch glass and leave to allow all of the water to evaporate.Learn more about crystals here:
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What volume of 2.0 M hydrochloric acid solution will be consumed when it reacts with 5 grams of magnesium to form magnesium chloride and hydrogen gas?
2HCl + Mg -> MgCl2 + H2
Answers
Answer:
Explanation:
Remember, matter can neither be created nor destroyed, so every atom of reactant the leftt side of the equation must be accounted for in the products on the right side of the equation. With magnesium and hydrochloric acid we have: Mg + 2HCl → MgCl2 + H2(g). Magnesium is divalent, and so requires two chloride ions to form magnesium chloride. Hydrogen gas is a diatomic molecule, so the reaction requires the product to be H2. Going across the equation from left to right we have 1 atom of magnesium (accounted for on the right side of the equation), and on the left, 2 moles of hydrochloric acid; the two hydrogens represented on the left of the equation are accounted for on the right of the equation. Likewise, the two chloride anions on the left of the equation are accounted for in the formation of MgCl2 on the right. When all the atoms are accounted for on both sides of the equation, we say the equation is "balanced".
can you guys please fact check me I don't wanna get a bad grade and please tell me if any are wrong 100 points and don't just take them
Answers
Answer:
1. the reaction rates can not decrease
2. correct!
3. correct!
4. decreasing the amount of reactants
5. correct!
Explanation:
good luck!
why is edta used to determine the hardness of water
Answers
EDTA (ethylenediaminetetraacetic acid) is commonly used to determine the hardness of water due to its ability to form complexes with metal ions, particularly calcium and magnesium ions.
Water hardness refers to the concentration of calcium and magnesium ions present in water. These ions can cause scaling, reduce the effectiveness of soaps, and have other negative effects. EDTA acts as a chelating agent, meaning it can bind to metal ions and form stable complexes.
In the process of determining water hardness, a known amount of EDTA solution is added to a water sample. The EDTA molecules form complexes with the calcium and magnesium ions present in the water.
The endpoint of the titration is reached when all the metal ions are complexed by the EDTA, resulting in a color change or an indicator reaching a specific endpoint.
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Which of the following reactions would you find in a radioisotope thermal generator?
Answers
because i’m always right:)
Choose all the right answers. The four major type of animal tissue are: epithelial, cytoplasmic, connective, muscular, support, nervous
Answers
Answer:
the four major type of animal tissue are:
connective tissue
nervous tissue
epithelial tissue
muscular tissue