How many moles of hydrogen are contained in 55.90 g of ammonium dichromate, (NH4)2Cr2O7?

Answers

Answer 1
There are 252.07 grams of ammonium dichromate per mol of ammonium dichromate molecules. There are 8 atoms of hydrogen per molecule of ammonium dichromate.

Convert grams to mole of molecules. And then molecules to atoms.

55.90 / 252.07 = moles of molecules

Since there are 8 hydrogen per 1 molecule multiply this by 8.

55.90 * 8 / 252.07 = 1.77 moles of hydrogen

Answer 2
To calculate the molar mass of a compound, you multiply the subscripts of each element times its molar mass (atomic weight in g/mol).
(NH
4
)
2
Cr
2
O
7
When there is no written subscript, it is understood to be
1
. Also, when elements are enclosed in parentheses, the subscripts on the inside are multiplied by the number outside the parentheses.
Molar Masses of the Elements
Nitogen:
14.007 g/mol

Hydrogen:
1.00794 g/mol

Chromium:
51.9961 g/mol

Oxygen:
15.999 g/mol
Molar Mass of Ammonium Dichromate
(
2
×
14.007
)
+
(
8
×
1.00794
)
+
(
2
×
51.9961
)
+
(
7
×
15.999
)
=
252.06 g/mol

Related Questions

which of the following statements if true of high school dropouts

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It is statistically proven that high school dropouts have a higher change of ending up in jail.

I am not sure if your test has multiple choices, if so- please comment them to this response and I'll be sure to directly answer which option is correct!

I hope this helps!

A: Suppose scientist conpared the wind speeds and barometric pressure readings of two severe storms over the Atlantic Ocean. For one of the storms, the barometric pressure was 1,000 mb ( millibars ), and the maximum wond speed was 100 kmh (kilometers per hour). The second had a barametric pressure of 960 mb and the maximum wind speed of 180 kmh

A1: Interpret the intercept for thr wind speed in this context (i.e., as it pertains to the weather).​

Answers

Answer:

b

Explanation:

if the largest trade diameter of a raceway entering a pull box is 3", and it is a straight pull, the minimum size box allowed is

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24" is the minimum size box allowed

what is the Brexit and how could this issue impact the global economy?

thank you!​

Answers

Brexit is an abbreviation of two English words: 'Britain' and 'exit' and refers to the withdrawal process of the United Kingdom (UK) from the European Union (EU). ... According to this rule, any Member State of the EU may decide to withdraw pursuant to its constitutional law.

who is the father of science. ​

Answers

Answer:

Galileo Galilei

Galileo Galilei pioneered the experimental scientific method and was the first to use a refracting telescope to make important astronomical discoveries. He is often referred to as the “father of modern astronomy” and the “father of modern physics”. Albert Einstein called Galileo the “father of modern science.”

Explanation:

plz mark my answer in brainlist plz

Answer:

Galileo Galilei

Albert Einstein called Galileo the “father of modern science.” Galileo Galilei was born on February 15, 1564, in Pisa, Italy but lived in Florence, Italy for most of his childhood.

SOLVE THE FOLLOWING EQUATIONS FOR ALL VALUES GREATER THAN OR EQUAL TO ZERO AND LESS THAN 360⁰

2SINꝊ - 1 = 0

Answers

We have:  2sinx - 1 = 0 ( 0 ≤ x ≤ 360° )

⇔ 2sinx = 1 ⇔ sinx = 1/2 ⇒ x = 30°

P/s: i don't know '' Ꝋ '' means so i change it to ''x''

ok done. Thank to me :>

In which of the following ways did the introduction of
sugar to Brazil and the development indicated in the
table affect global trading patterns?
O It led indigenous populations to begin to develop
home industries in their lands.
It illustrated the profitability of exploiting colonial
resources such as land and labor.
O It led to indigenous populations producing crops to
help feed the colonial population.
O It indicated that having a variety of commodities was
necessary to justify the costs of colonialism.

Answers

Answer:

hi

Explanation:

It indicated that having a variety of commodities was

necessary to justify the costs of colonialism.

Answer:

I am in the middle of taking the test and my best guess on this would be c

Explanation:

Why I say it could be C is because if the person below chose D and it was voted wrong then it cannot be that answer. It can't be because that doesn't make sense. B can be somewhat ruled out due to the fact that they didn't exploit the colonies the colonies did that to them.

Which of these is a power, structure and technical systems career? A. food scientist B. grain storage contractor C. soil scientist D. vintner​

Answers

Answer: i think its c

Explanation:

According to Davidson, out of 8 million southern whites, only 2,000 were wealthy enough to own 100 slaves.

True or False?

Answers

Answer:

i don't know but i need points i hoped you passed good bye

Explanation:

What are the three main jobs of a forensic scientist?

Answers

Answer:

The Forensic Scientist will lead teams, conduct independent investigations and reconstructions, and compile technical and administrative reviews of complex, serious, and major crime scenes. You will manage and preserve crime scenes until pertinent personnel arrives. You will testify in trials and hearings, and prepare records and reports.

Explanation:

PA BRAINLIEST

HOPE ITS HELP

GOD BLESS

Solve for X. If there is no solution possible, simply write "NS"


12-x+4x=3(2x+8)÷2

Answers

12+3x = 6x+24 / 2
12+3x = 3x+12
3x=3x
x=1
x=2



12-2+8 = 3(4+8) /2


18=18

5. Paano nagsimula ang Rome? Ayusin ang mga sumusunod na pangyayari batay sa pagkasunod-sunod
1. Itinatag ang Rome sa pampang ng Tiber River noong 753 BCE.
2. Ang mga Roman ay tinalo ng mga Etruscan, ang kalapit na tribo sa hilaga ng Rome
3. Ayon sa isang matandang alamat ang Rome ay itinatag ng kambal na sina Romulus at Remus.
4. Nang itatag ang Rome sa kalagitnaan ng ikawalong siglo BCE ng mga unang Roman at lumipat sa gitnang Italy

A. 1.43,2
B.1.3.4.2
C. 4.3.1.2
D 4.1.3.2.​

Answers

Answer:

The correct answer is letter B) 1.3.4.2

Explanation:

Hope it helps Filipinos people ^_^

aling batas ang nangangalaga sa kapakanan ng mamimili

Answers

Answer:

REPUBLIC ACT 7394

IT MEANS

CONSUMER ACT OF THE PHILIPPINES

how might a fun connection like favorite hobby or animal help in your career development?

Answers

Answer:

If you find a hobby you really like, then you might want to do that hobby a lot more and maybe on a daily basis. So, if you wanted to do that as your career, it would be more fun and it would be a more exciting job to go to every day. And it would give you less stress and dread to go to work, if it something enjoyful to you.

Explanation:

I hope this helps!! I'm sorry I couldn't explain it better. I'm not really good at explaining, I'm usually better at explaining and putting things into words in person rather typing. However, I think you might get the idea of what I'm saying, but if not I'm sorry that I couldn't do better! Maybe someone can do better at explaining!...Anyways, Have a wonderful night! I hope you receive the answer you need and desire!

Two legs of a right triangle are each 70 cm. If one leg grows at the rate of 3cm/min and the other
shrinks at the rate of 5 cm/min.
A)how fast is the hypotenuse of the triangle changing 2 minutes later?
B)how fast is the area of the triangle changing 2 minutes later?

Answers

that’s why you didn’t say it lol that’s funny lol i the only reason why she didn’t even talk to yourself lol i the bulldogs way to say

Which of the following would be counted in the investment component of this year's GDP?(1 point)

The market value of all stock purchases for the year.

The total quantity of savings account deposits made this year.

The market value of all finished goods purchased this year.

The market value of new factories built this year.

Answers

The market value of new factories built this year.

Brainliest me dear:)

The cost that would be counted in the investment component of this year's GDP is: D. The market value of new factories built this year.

What is GDP?

GDP is an abbreviation for Gross Domestic Products and it can be defined as a measure of the total market value of all finished products (goods), assets and services that are manufactured within a country during a specific period of time.

In this context, the market value of all new factories that were built this year would be counted by a business orgainization in the investment component of this year's GDP.

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what is the most noticable difference between human brains and other mammalian brains

Answers

Answer:

A

Explanation:

association areas deal with higher mental functions such as thinking, planning etc. and occupy about 3/4 of the cortex.

How do you use "Speaker of the House" in a sentence for AP Government?

Answers

Answer:

If both the president and vice-president are unable to perform their duties, the Speaker of the House will take over as head of state.

help :p
The pathology of dissociative disorders
can be emotional trauma or _______ trauma.

A. behavioral
B. dysfunctional
C. organic

Answers

Answer:

The pathology of dissociative disorders can be emotional trauma or (A) behavioral trauma.

I hope this helped at all.

Kramer and Jerry moved from New York to Los Angeles in pursuit of becoming actors. They considered all of the apartments in the area of the city they wished to live in and decided to rent one that was to their satisfaction.

Explain how each of the following is related to Kramer and Jerry’s decision to rent an apartment.

- Frontal Lobe
- Foot-in-the-door Phenomenon

Explain how each of the following concepts could be related to Kramer and Jerry’s moving their belongings into the apartment

- Social Loafing
- Cerebellum
- Broca’s Area

Provide an example that explains how each of the following concepts could be related to life for Kramer and Jerry in their new apartment in Los Angeles.

- Normative Social Influence
- Self-Fulfilling Prophecy

Answers

The frontal lobe is related to Kramer and Jerry's decision to rent an apartment in order to be the part of the brain responsible for cognitive functions such as memory, problem solving, emotions, etc.

The foot-in-the-door phenomenon relates to Kramer and Jerry's decision to rent an apartment in that this phenomenon is a compliance tactic, which occurs when a small order is placed, in order to encourage compliance with a larger order.

In other words, they visited the apartments in the area of ​​the city where they would like to live and after that visit, they decided to rent one that they liked.

Social Loafing can make moving Kramer and Jerry's belongings to the apartment slower, as this theory is related to less effort in achieving goals when accomplished in a group.

The cerebellum is the part of the brain responsible for coordinating voluntary movement, motor skills, balance and posture, functions that will enable Kramer and Jerry to carry out the work of moving their belongings into the apartment.

The broca's area is the brain area where motor speech is produced, it is responsible for regulating breathing and vocalization during speech, so that communication between them is possible.

Normative social influence occurs when a person adjusts to fit into a group, associated with conformity.

An example of how normative social influence might be related to Kramer and Jerry's life in their new LA apartment could be the set of habits they will acquire while living there, such as physical activity and the use of designer clothing.

Self-fulfilling prophecy corresponds to false expectations about a person or entity, generating adjustments in behavior, perception and communication to match expectations, making it a reality, thus strengthening the belief.

For example, if Jerry and Kramer believe they can't be successful actors in Los Angeles, they skip auditioning to get a role.

Learn more here:

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What does it mean if a child is egocentric?

Answers

Answer:
Egocentric thinking is the normal tendency for a young child to see everything that happens as it relates to him- or herself. This is NOT selfishness. Young children are unable to understand different points of view. Hope this helps! :)

how will you show your appreciation for their works? give three (3) answers

Aqueduct
1.
2
3

Piramide ng Mesoamerica
1
2
3

Colloseum
1
2
3

Columns o Poste
1
2
3
3

Arch
1.
2.
3.

basilica
1.
2.
3.​

Answers

Answer:

umm im sorry i am confused so freind me and i can give you a code for help

Explanation:

1,2,3????????

why cant students opt out of day classes and have the choice to do online rather then being pushed to go to class and end up ditching class and failing for no participation

Answers

Answer:

Students are simply not motivated in online classes. They are usually easy A's and are time efficient, but student learning outcomes tend to be lackluster. ... Perhaps the biggest disadvantage of taking an online class is the absence of face-to-face interaction between the teacher and their students. It also doesnt benefit the school which is what most schools really care about.

Explanation:

Choose eight paintings by American artists from the period 1700–1860. Suggested works


include:


• John J. Audubon – Birds of America series


• Thomas Cole – Distant View of Niagara Falls; Home in the Woods


• Jonathan Singleton Copley – Paul Revere


• Robert Scott Duncanson – Uncle Tom and Little Eva


• Edward Hicks – The Peaceable Kingdom


• Emanuel Leutze – Washington Crossing the Delaware


• Charles Willson Peale – Joseph Brant; Exhuming the First American Mastodon


• Peter F. Rothermel – Patrick Henry Before the Virginia House of Burgesses


• Gilbert Stuart – George Washington


• Edward Savage – Congress Voting Independence


• John Trumbull – The Declaration of Independence; Surrender of Lord Cornwallis


• John Vanderlyn – Landing of Columbus


• Benjamin West – The Death of Ge

Answers

Answer:

1: John Singleton Copley - Watson and the Shark

2: Benjamin West - The Battle of La Hogue

3: John Singleton Copley - The De ath of the Earl of Cha tham

4: Benjamin West - The Expulsion of Ad am and Ev e from Paradise

5: William Sidney Mount - Cider Making

6: George Caleb Bingham - Fur Traders Descending the Missouri

7: Jerome B. Thompson - The Bela ted Party on Mansf ield Mountain

8: Francis William Edmonds - The New Bonnet

Explanation:

Paintings that fit the criteria that are not on the list you gave! :D

       Some of the spaces are because Brainly was sensoring the names of the artworks

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Pay close attention to item #3 on the list, which says you will automatically have access to each credit bureau’s credit report after you report the ID theft. What would you recommend as appropriate follow-up in the months and years afterwards?

Answers

Answer:

Notify companies of your stolen identity. File a report with the Federal Trade Commission. Contact your local police department. Place a fraud alert on your credit reports.

Explanation:

We can message or notify them about the stolen identity and report or file a complaint with the federal commission.

What is a federal commission?

A federal trade commission is an independent trade agency of the US and its job is enforce the principles of the US antitrust laws. They share the federal law with the department of justice.

Thus on notify them about the company's stolen identity. We can file the report. Also can contact the local police department. Place the fraud alert on the credit reports.

Find out more information about the credit.

brainly.com/question/25599836.

It's only one color, but it can grow, stick to your feet wherever you go, there in the sun, not in the rain, never does harm, never feel pain. What am I?

Answers

Answer:

um is it feet fungus

Explanation:

In what ways do cultures use land and resources differently than other cultures?

Answers

Answer:

The terms land culture or land-based culture are often used in reference to indigenous cultures that view their responsibility as land curators versus landowners. As such, land is also often connected to the identity and spirituality of individuals within the culture.

Cultures use the environment to their advantage as well as the available livestock, for instance, the incans built long mountainous roads that would make a difficult trek for humans carrying goods, therefore they used llamas, a native animal to the province to carry goods for merchants. This technique was hardly used in other civilizations.

I dont know sorry man

what dose x equal (9x+23) +(10x+6)

Answers

Answer:

(9x + 23) + (10x + 6) = 19x + 29

Explanation:

A country with a population pyramid that is largest at the bottom is MOST LIKELY to experience a shortage of which of the following?

Answers

A country with a population pyramid that is largest at the bottom would most likely experience a shortage of food and jobs.

What is a population pyramid?

A population pyramid is also referred to as age-gender pyramid and it can be defined as a graphical representation of the distribution of a population based on age groups and gender.

Generally, the distribution of a population based on age groups and gender typically takes the shape of a pyramid as the population grows and it comprises two (2) histograms.

In conclusion, a country with a population pyramid that is largest at the bottom would most likely experience a shortage of food and jobs.

Read more on population pyramid here: https://brainly.com/question/8019756

to what extent made the natural environment and the demands of pastoral economy influence social organization on Eurasian steppe lands

Answers

In terms of economics, nomads sought food, manufactured products, and luxury items that were only available from their agricultural neighbours. Pastoral peoples banded together politically and militarily at times to extort income from agricultural communities through trading, raiding, and extortion. Members of certain pastoral civilizations culturally acquired agricultural neighbours' religions, such as Judaism, Buddhism, Christianity, Islam, and Manichaeism. The European lands became a site of commerce of goods and a pastoral economy as a result of the demands of the pastoral economy.

The social structure of the Eurasian steppe regions was significantly influenced by the natural environment and the needs of the pastoral economy.

The wide grasslands and nomadic way of life in these areas influenced the social structure. Mobility was necessary for nomadic pastoralism to maintain animals, which resulted in social structures that were decentralized and adaptable.

Clan-based kinship networks and tribal ties developed, encouraging cooperation for defense and survival.

Trade routes encouraged cultural interaction and trade, which influenced political federations and alliances.

Because of how important defense and mobility were, leadership was frequently centered around capable military leaders.

Thus, environmental issues in the steppe and the necessity for resource management interacted to create distinct socio-political dynamics that had a lasting impact on governance, migratory patterns, and inter-tribal relations.

For more details regarding Eurasian steppe, visit:

https://brainly.com/question/4347109

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