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Subject: Chemistry

Objective: Apply the concepts of mole and stoichiometry.
Question: In our Limiting Reactant lab, we started with an unknown mixture of two reactants, zinc
sulfate and sodium phosphate, that reacted in the experiment according to the following equation:
3 ZnSO: (aq) + 2 Na3PO4 (aq) ? Zn (PO4)2 (s) + 3 Na?SO4 (aq)
Realistically, some solid was lost in the experiment, so assume 99.0% yield for the purpose of your
calculations. Include definitions, explanations, discussion of limiting reactant and percent yield in your
response. Use this student

Objective: Apply the concepts of mole and stoichiometry. Question: In our Limiting Reactant lab, we started with an unknown mixture of two reactants, zinc sulfate and sodium phosphate, that reacted in the experiment according to the following equation: 3 ZnSO: (aq) + 2 Na3PO4 (aq) ? Zn (PO4)2 (s) + 3 Na?SO4 (aq) Realistically, some solid was lost in the experiment, so assume 99.0% yield for the purpose of your calculations. Include definitions, explanations, discussion of limiting reactant and percent yield in your response. Use this student's lab data to calculate the percentage of Sodium Phosphate and Zinc Sulfate in the unknown mixture: Mass of unknown mixture of reactants: Mass of solid precipitate collected: Qualitative test determined limiting reactant: 1.983 g 0.759 g Na PO, made the supernatant cloudy

Two solutions are prepared by a chemist. One of the solutions is 150.0 ml of a 3.5 x 10�5 M HNO3.
The other solution is 250.0 ml of a 0.63 M solution of HNO2.
Compare the pH of each solution.

Two solutions are prepared by a chemist. One of the solutions is 150.0 ml of a 3.5 x 10�5 M HNO3. The other solution is 250.0 ml of a 0.63 M solution of HNO2. Compare the pH of each solution.

Pa answer po please! salamat?

Pa answer po please! salamat?

$What is the strength of the final solution if a 180% solution is diluted 1:6 twice (Do not use decimal approximations for fractions)?$

What is the strength of the final solution if a 180% solution is diluted 1:6 twice (Do not use decimal approximations for fractions)?

PLEASE HELP FAST
What is the chemical formula for the ionic compound formed by Na+ and N��
Responses:
NaN,
Na3N,
NaN3,
Na3N3

PLEASE HELP FAST What is the chemical formula for the ionic compound formed by Na+ and N�� Responses: NaN, Na3N, NaN3, Na3N3

Solved

Use the equation to complete the activity.
238 234
U ------> TH + a
92 90
The nuclear equation shows the transmutation of a form of Uranium into Thorium and an alpha particle. In one to two sentences, explain whether or not the reaction is balanced.

Use the equation to complete the activity. 238 234 U ------> TH + a 92 90 The nuclear equation shows the transmutation of a form of Uranium into Thorium and an alpha particle. In one to two sentences, explain whether or not the reaction is balanced.

Which of these statements is one of the conclusions that formed the basis of dalton�s atomic theory?.

Which of these statements is one of the conclusions that formed the basis of dalton�s atomic theory?.

hat is the chemical symbol for magnesium?
Mo
Mn
Mg
Md

hat is the chemical symbol for magnesium? Mo Mn Mg Md

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Which best explains how the chemical reaction shown below follows the law of conservation of mass? 2H2 + O2 ? 2H2O

Which best explains how the chemical reaction shown below follows the law of conservation of mass? 2H2 + O2 ? 2H2O

Practice
Now, practice creating Lewis Dot Structures for the following elements. You must determine the symbol, valence electrons (using the valence portion of the electron configuration), and Lewis Structure.

Practice Now, practice creating Lewis Dot Structures for the following elements. You must determine the symbol, valence electrons (using the valence portion of the electron configuration), and Lewis Structure.

Why does the graph of beta decay have horizontal change while alpha decay graphs change vertical and horizontal?

Why does the graph of beta decay have horizontal change while alpha decay graphs change vertical and horizontal?

Give the symbol of the element represented by the following abbreviated electron configuration.
[Ar]4s23d10

Give the symbol of the element represented by the following abbreviated electron configuration. [Ar]4s23d10

what are halogens. B) what are transition elements.C) what are alkali metals .... please i need the awnser asap :)

what are halogens. B) what are transition elements.C) what are alkali metals .... please i need the awnser asap :)

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What is the volume of a nugget of gold that has a mass of 93,300g?

What is the volume of a nugget of gold that has a mass of 93,300g?

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PLEASE HELP!does anybody know the answer to these??it

PLEASE HELP!does anybody know the answer to these??it's apart of the sheet your supposed to fill out during the lab

Someone help, I don

Someone help, I don't understand this please. Calculate the average atomic mass of magnesium, given the data in the table below. Show your work. Magnesium - 24 / Mass 23.9850 / Percent Abundance 78.99% Magnesium - 25 / Mass 24.9859 / Percent Abundance 10.00% Magnesium - 25 / Mass 25.9825 / Percent Abundance 11.01%

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Popular Questions

Factor [tex]x^{2} =7x[/tex]

1. What is the atom name(s) of Hydrogen Gas, Salt (Sodium Chloride), Methane, Carbon Dioxide, Oxygen Gas, Air, Water, Hydrochloride Acid, Sodium Hydroxide (lye), Carbonated Water?

An animal rescue centre has 20 animals. 11 of the animals are dogs and 9 of the animals are horses. What fraction of the animals at the animal rescue centre are dogs? Give your answer in its simplest form.

Someone help, I don't understand this please. Calculate the average atomic mass of magnesium, given the data in the table below. Show your work. Magnesium - 24 / Mass 23.9850 / Percent Abundance 78.99% Magnesium - 25 / Mass 24.9859 / Percent Abundance 10.00% Magnesium - 25 / Mass 25.9825 / Percent Abundance 11.01%

Making Inferences about a Time Period in "A Century Ride" 1.question Read the excerpt from "A Century Ride.� "And Carr?� Oh, his leg knitted finely, and the Doctor said that Maude was a born surgeon, and only her entreaties compelled him to meddle with her bandaging. The excerpt suggests that the Doctor [? approves of] the changing roles of women in the 1800s. 2.question Based on their actions in �A Century Ride,� which inference about Lizzie and Maude as women of the late 1800s is most valid? ? Maude represents the way women had behaved in the past, while Lizzie represents the way that women�s roles were changing. ?? Lizzie represents the way women had behaved in the past, while Maude represents the way that women�s roles were changing. ? Maude represents the way that women�s views on marriage stayed the same, while Lizzie represents the way that women�s views on marriage were changing. ? Lizzie represents the way that women�s views on marriage stayed the same, while Maude represents the way that women�s views on marriage were changing. 3.question Read the excerpt from �A Century Ride.� But now, Carr was behaving atrociously. When Lizzie and her husband were present, he was geniality personified, his brown eyes twinkled, and his laugh rang clear; when Lizzie, with transparent diplomacy, pleaded delicate health, and retired early, or with pretty wifely demands drew her husband aside, and left the young people en t�te-�-t�te, Carr knitted his brows in an ugly frown, and sat, stood, or strolled in gloomy silence. Which phrase in the excerpt clarifies the meaning of �atrociously� by providing its opposite? ?? geniality personified ? transparent diplomacy ? delicate health ? gloomy silence 4.question Based on �A Century Ride,� which 1800s activities would Maude most likely engage in? Check all that apply. ?? campaigning for the right to vote ? working in the home ? observing sports from the side ?? supporting education reform ?? favoring more female workers 5.question Read the excerpt from "A Century Ride.� "Shall I go?� were the words which would have issued from her pretty lips, one day, a week later (had she been in the habit of talking to herself), as she finished reading a long and chatty letter inviting her to "come away North, and spend the holidays,� and concluding with these words: "We are fifty miles from everywhere, and our roads are splendid, so you had better bring your bicycle, or velocipede, or whatever it is you ride to the horror and confusion of Auntie.� What inference about women in this culture can be made from the excerpt? ? Historically, women in this culture were expected to be athletic. ? Historically, women in this culture had difficulty making decisions. ??Historically, women in this culture did not participate in sports. ? Historically, women in this culture did not spend holidays in the South. and then you get 100%

WILL GIVE BRAINLIEST When a teacher is moving forward at a speed of 2m/s and drops a ball , how the ball moves relative to the teacher ? A) straight downward B) forward and downward ?

Which of these is not a requirement to be a US Senator? 1. must be a natural born US citizen 2. must be a resident of the state when elected 3. must be 30 years old 4.all answers are correct

On your first day of work at the Vanity Fur Grooming Shop, you groomed 3 dogs between 7:45 a.m. and 2:30 p.m., taking breaks that totaled 45 minutes. Your supervisor advises that you will be scheduling your own appointments when customers call to have their pets groomed. If you continue to work at the same rate, how much time should you allow for each grooming appointment?

Question Is this statement true or false? The Chinese knew how to produce silk by about 2700 B.C. Responses true false

A basketball player moves down the court, dribbling a basketball. Use Newton's Third Law of Motion and the Second Law of Motion to explain why the basketball returns to the player's hand after it strikes the floor (there should be two distinct parts to your answer). For the Third Law, make sure you identify the action-reaction pair using the notation FA on B and FB on A

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