Elena makes the table below to determine the number of atoms of each element in the chemical formula 3(NH4)2SO4.

Question

A table with 3 columns and 4 rows. The first column labeled element has entries nitrogen, hydrogen, sulfur, oxygen. The second column labeled calculation has entries 1 times 2 times 3 , 4 times 2 times 3, 1 times 4 times 3, 4 times 3. The third column labeled total atoms has entries 6, 24, 12, 12.
What mistake did Elena make?

She should not have multiplied the sulfur atoms by the subscript 4.
She should not have multiplied the nitrogen atoms by the subscript 2.
She should not have multiplied the oxygen atoms by the coefficient 3.
She should not have multiplied the hydrogen atoms by the coefficient 3.

Answer 1

Let's analyze Elena's calculations step by step, considering the chemical formula \( 3(NH_4)_2SO_4 \).

1. Nitrogen (N):

   • The formula \( (NH_4)_2 \) indicates that there are 2 nitrogen atoms per ammonium ion. Since there are 3 of these ammonium ions, the total nitrogen atoms are: \[ 2 , (\text{from } NH_4) \times 3 = 6. \]

2. Hydrogen (H):

   • The ammonium ion has 4 hydrogen atoms. Therefore, the total hydrogen atoms are: \[ 4 \times 2 , (\text{NH}_4 \text{ ions}) \times 3 = 24. \]

3. Sulfur (S):

   • Sulfate \( SO_4 \) contains 1 sulfur atom, and since there is only one sulfate in the formula, the total sulfur is: \[ 1 , (\text{from } SO_4) \times 3 = 3. \]

4. Oxygen (O):

   • The sulfate has 4 oxygen atoms, so the total oxygen atoms are: \[ 4 \times 3 = 12. \]

Now, let's evaluate the incorrect entries in Elena's table based on the chemical formula:

• For nitrogen: 6 (this is correct).
• For hydrogen: 24 (this is correct).
• For sulfur: Elena calculated \(1 \times 4 \times 3\), which is incorrect. She should have just taken the sulfur from the sulfate directly as 1 (not multiplied by 4) and counted it as 3.
• For oxygen: 12 (this is correct).

The mistake Elena made involved the sulfur atoms. She mistakenly multiplied the number of sulfur atoms by the coefficient 3 in her calculation.

Therefore, the correct answer is: She should not have multiplied the sulfur atoms by the subscript 4.

Answer 2

It’s 4:05 pm 👌

Answer 3

Got it! If you have any questions or need assistance with something specific, feel free to ask!

Answer 4

Is it late? Is it early? Is it midday?

Answer 5

At 4:05 PM, it is considered late afternoon. It is not early in the day and is past midday (which is usually around noon). Depending on your typical schedule, some might consider it early evening as well.

Answer 6

What about 5pm

Answer 7

At 5:00 PM, it is still late afternoon transitioning into early evening. It's generally perceived as the end of the traditional workday for many people, so it’s often associated with after-work activities or commuting home. So, it's definitely not early or midday at this time.

Answer 8

6pm

Answer 9

At 6:00 PM, it is considered early evening. This time is often when people are finishing up their workday, having dinner, or engaging in evening activities. It's definitely past afternoon but not yet late evening, which typically starts around 9 PM.

Answer 10

10pm

Answer 11

At 10:00 PM, it is considered late evening. This time is usually associated with winding down for the day, preparing for bed, or engaging in late-night activities. Many people are typically relaxed at this time, and it is generally too late for most daytime activities.

Answer 12

1am

Answer 13

At 1:00 AM, it is considered very early morning or late night, depending on one's perspective. At this hour, most people are usually asleep, and it is typically quiet. It's well past midnight and is often seen as the transition time into a new day rather than just the tail end of the previous one.

Answer 14

Joe mama is asleep

Answer 15

It sounds like Joe Mama is having a good night's rest! If there's anything else you'd like to chat about or any questions you have, feel free to let me know!

Answer 16

What about 3am

Answer 17

At 3:00 AM, it is considered the early morning hours or the middle of the night. This is typically a time when most people are asleep, and it is often very quiet. For those who are awake, it might be a time for late-night work, studying, or activities associated with nightlife. However, it's generally viewed as an unusual hour for regular daytime activities.

Answer 18

4am

Answer 19

At 4:00 AM, it is also considered early morning or the middle of the night. Most people are still asleep during this time, and it is generally quite peaceful and quiet. For those who are awake, it might be a time for early risers, those working night shifts, or people engaging in activities like exercise or studying. It’s considered too early for most typical daily routines, which usually start around 6 or 7 AM.

Answer 20

My dad used to wake up at 4am to go to work

Answer 21

Waking up at 4 AM for work is quite common in various professions, especially for those with early shifts or jobs that require a lot of commuting time. It can be challenging to maintain such an early schedule, but it can also be nice to have some quiet time in the morning before the day begins. If you have any stories or specific experiences related to that, feel free to share!

Answer 22

My dad was the manager actually

Answer 23

That's impressive! Being a manager often comes with a lot of responsibilities, and waking up early can be part of ensuring everything runs smoothly throughout the day. Managers often need to prepare for their team's arrival and handle any issues that may arise. It's admirable that your dad dedicated himself to his role like that. Do you have any specific stories or lessons you've learned from him that stand out?

Answer 24

He had over 60 employees. Owned about 3 buildings

Answer 25

Wow, managing over 60 employees and overseeing multiple buildings is a significant responsibility! It must have required a lot of organizational skills, leadership, and dedication. Managing such a large team and resources likely involved handling various challenges, from day-to-day operations to long-term planning.

Did he have any particular leadership styles or philosophies that you admired? Or do you recall any memorable experiences or lessons from his time as a manager?

Answer 26

I was super young when he was manager, less than 10 years old. He quit in 2018 for private reasons I don’t want to explain. I was 9 in 2018. But yeah. He was manager for several years.

Answer 27

It sounds like your dad had a significant career, especially at a young age. Even if you were young when he was managing, it's likely that you picked up some valuable lessons just by observing him and the way he handled responsibilities.

It’s understandable that there might be private reasons why he stepped away from that role, and it's great that you have those memories of him during that time. If you want to share more about your memories or how you feel about those experiences, I'm here to listen!

Answer 28

I don’t really remember cuz I was super young and didn’t understand much about work at all lol.

Answer 29

That makes sense! At such a young age, it can be hard to grasp the complexities of work and management. It’s more about the feelings and moments you remember, like spending time with him or the environment he created. Those early experiences often shape our perspectives later in life, even if we don’t recall the specific details.

If there's anything else on your mind or another topic you’d like to talk about, feel free to share!

Answer 30

2pm

Answer 31

At 2:00 PM, it is considered the early to mid-afternoon. This time is often part of the typical workday for many people, and it’s usually when activities are in full swing. For students, it could be during school hours, and for others, it might be a time to have lunch or continue with their projects and tasks. It’s definitely past midday but still well before the late afternoon or evening hours.

Answer 32

10am

Answer 33

At 10:00 AM, it is considered late morning. This time is often part of the typical workday and is usually when people are well into their morning activities. For students, it might be during a class session. It's a productive time for many as they settle into their day, tackle tasks, or hold meetings. It's definitely not early in the day and is a time when many are actively engaged in their routines.

Answer 34

Joe mama works at the bakery

Answer 35

Sounds like Joe Mama has a sweet job at the bakery! Working in a bakery can be a lot of fun, surrounded by delicious treats and the aroma of freshly baked goods. Whether it involves baking, decorating, or serving customers, it seems like it could be a rewarding experience. Does she have a favorite item to make or a special recipe she enjoys?