A 1250.0g block of silver at 1oC is placed in 2.6g of water vapor at 102oC. What is the equilibrium temperature of the two substances? Specific Heat of Ag is 0.235J/goC

Please answer with work shown

Answers

Answer 1

Answer:

Explanation:

Let final temperature be T .

vapor is at 102⁰C

loss of heat by vapor in turning into water at 100⁰C

= 2.6 x 2 x 1.996 + 2.6 x 2260 = 5886.37 J

loss of heat to lower temperature to T

2.6 x 4.186 x ( 100 - T )

1088.36 - 10.88 T

Total heat loss = 5886.37 + 1088.36 - 10.88 T

= 6974.73 - 10.88 T

heat gain by silver to gain temperature from 1⁰C to T⁰C

= 1250 x ( T - 1 ) x .235 = 293.75 T - 293.75

heat gain = heat loss

293.75 T - 293.75  = 6974.73 - 10.88 T

304.63 T = 7268.48

T = 23.86°C .


Related Questions

The electron configuration of an element is 1s^ 2 2s^ 2 2p^ 2 How many valence electrons does the clement have? (1 point )

Answers

Answer:

:)

Explanation:

On July 4, 2020, America turned 7.69 x 10^9
seconds old. On that day, how old was America
in years? (Assume 365 days in a year)

Answers

America's age = 243.85 years

Further explanation

When converting units, list and multiply all the units until you find the unit you want

Time unit conversion

1 year = 365 days

1 day = 24 hours

1 hour = 3600 s

7.69 x 10⁹ seconds to years :

[tex]\tt =7.69\times 10^9~s\times \dfrac{1`hour}{3600~s}\times \dfrac{1~day}{24~hours}\times \dfrac{1~years}{365~days}\\\\=\dfrac{7.69\times 10^9}{3600\times 24\times 365}\\\\=\boxed{\bold{243.85~years}}[/tex]

Please help!!

What colors do acids and bases turn litmus paper?

Answers

Answer:

acid turns blue litmus red and base turns red litmus blue

Answer:

turns red or pink if it is acid and turns green if it is a base

Explanation:

litmus paper is blue

Question 5

1 pts

Chloroethene,C2H3C1, reacts with oxygen according to the equation below.

2 C2H2Cl (9) + 5O2(g) + 4CO2 (g) + 2 H20 g) + 2 HCl (9)

What is the amount, in mol, of H2O produced when 10.0 mol of C2H3Cl and 10.0 mol of

O2 are mixed together, and the above reaction goes to completion?

08.00

10.0

04.00

20.0

Lo

Answers

Answer:

4.00 moles of water

Explanation:

The equation of the reaction is:

2 C2H2Cl (9) + 5O2(g) -------> 4CO2 (g) + 2 H20( g) + 2 HCl(g)

To find the limiting reactant,  we find the species that yields the lowest number of moles of water.

From the reaction equation;

2 moles of C2H2Cl  yields 2 moles of water

10 moles of C2H2Cl  yields 10 * 2/2 = 10 moles of water

Similarly;

5 moles of oxygen yields 2 moles of water

10 moles of oxygen will yield 10 *2/5 =4 moles of water

Hence oxygen is the limiting reactant.

10 moles of oxygen yields 4 moles of water.

4
The element bromine at room temperature is a liquid with a density of 3.12 g/nl.
Calculate the mass (wanted measurement) of 125 mL (given measurement) of bromine.
(use the given density as the conversion factor to calculate the wanted measurement).
Sign out

Answers

Given : Density of Bromine = 3.12 g/mL
Formula : Density = Mass / Volume

Part A :
Given Volume = 125 mL
Density = Mass / Volume
So, Mass = Density x Volume
= 3.12 x 125
= 390 grams

Part B :
Given mass = 85.0 gm
Density = Mass / Volume
So, Volume = Mass / Density
= 85 / 3.12
= 27.24 mL

In Ionic compounds the charges of the cation and anion should cancel out.

True
False

Answers

true i looked it up

which order system shows the levels of organization from largest to smallest

organism, organ system cell organ tissue
organism tissue organ system organ cell
organism organ organ system cell tissue
organism organ system organ tissue cell

Answers

Answer:

cell → tissue → organ → organ system → organism

Explanation:

Answer:

The correct answer is cell → tissue → organ → organ system → organism.

Explanation:

I know this because I am smart

name one state of matter

Answers

Answer:

solid

Explanation:

Answer:

Gas

Explanation:

How long will it take for 500.0g of radium decay to 2.0g

Answers

Therefore, the elapsed time must be triple the length of one half-life. 24.33=8.10 , so it is 8.10 hours.

Two reasons photosynthesis is important

Answers

Answer:

Gives us oxygen to live, and if produces products such as, rubber, timber, herbs, and medicines.

It maintains the concentration of atmospheric carbon dioxide and oxygen.

2)To make food from sunlight carbon dioxide and water

If you weighed 25 grams of NaOH in this lab, how many moles of NaOH
would you have?

Answers

Search Results
Featured snippet from the web
The answer is 0.025001806380511. We assume you are converting between moles NaOH and gram. You can view more details on each measurement unit: molecular weight of NaOH or grams This compound is also known as Sodium Hydroxide. The SI base unit for amount of substance is the mole .
.625 mols
(25 grams * 1 mol) / (40 grams) = .625 mols

3. Two boxes need to be moved. Box A is 10 kg. Box B is 3 kg. Which box will 1 point
require more force to move?
BOXA
BOX

Answers

Answer:

box A

Explanation:

10 is bigger than 3 since 10 is bigger it has more force in it

Pls help me here, thanks in advance

Answers

Answer:

What's the problem???

Which of the following is measured in Newtons?
Mass
Acceleration
Weight
Momentum

Answers

Mass is a newtons and it will not be weight because it’s mass

Answer:

Mass is measured in kg

Acceleration is measured in m/s^2

Weight is measured in Newtons

Momentum is measured in kg/m^2

Is uranium a mixture or pure substance

Answers

Answer: is a pure substance

Explanation:

pure substance is the answer I think !!!!

What’s science in science

Answers

Answer:

Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool)

Explanation:

Answer:

Modern science is typically divided into three major branches that consist of the natural sciences (e.g., biology, chemistry, and physics), which study nature in the broadest sense; the social sciences (e.g., economics, psychology, and sociology), which study individuals and societies; and the formal sciences

what is potiential and kinetic engergy? pls someone answer my question

Answers

Answer:

Potential Energy is stored energy or energy of position (gravitational). The object isn't moving. For example, a ball being held is potential energy because the object isn't moving but it has the potential of turning into kinetic energy.

Kinetic Energy is the energy of motion. For example, running. You are moving, and there is clear action and activity

Energy stored in an object due to its position is Potiential energy . Energy that is moving object has due to its motion is Kinetic energy .

What happens when you touch two hot bowls made of different materials? The wooden and metal bowl are both at the same temperature and HOTTER than your finger. Compare the direction and speed of the heat arrows for the wooden and metal bowl. Explain WHY and what affects HOW the arrows move from the wooden and metal bowl to the finger.

Answers

Answer:

Explanation:

Both metal and wooden bowls are at the same temperature . But wood is non-conductor of heat whereas metal is conductor of heat .

If we touch the wooden bowl , heat flows from hot to cold object . Since the finger is at higher temperature , heat flows from finger to wooden bowl . But , since wood is non conducting , it does not allow heat to be conducted through it . Hence very less heat will be conducted from our finger .

On the other hand , if we touch a metal bowl , heat flows from finger to the metal bowl , without any hinderance . Hence rate  of heat flow will be fast in case of metal bowl . As a result of it , we feel cool in touching metal bowl . This feeling will be absent in case of wooden bowl.

What do you look for when trying to identify a formula and/or compound name as ionic?

Answers

Answer:

Ionic compounds are named with the cation first and the anion last. The same convention is used when writing their chemical formulas.

Explanation:

Plz help! :) :D I will mark you as BRAINLIEST for the best answer!!! ( I actually mean it)
Physical and Chemical Properties of Magnesium

Here is an EXAMPLE of how it has to be like. Instead of Mercury, you HAVE to do Magnesium

Physical Properties of Mercury: ”I’m a highly stable element, so you can count on me”

Chemical Properties of Mercury: ”I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon”

Answers

huuuuuuh??
explanation

A hypothetical element has two main isotopes with mass numbers of 59 and 62. If 73.00% of the isotopes have a mass number of 59 amu, what atomic weight should be listed on the periodic table for this element? Answer in units of amu.

Answers

since 73% of the isotope is given, take 100%-73% to get the remaining % of the isotopes which is going to be 27%.

hence,

atomic weight= (73×59) + (27×62)

=4307+1302

=5609 amu

Write down the answer. Make sure to use the correct number of sig figs or
spots after the decimal. 987.22 - 377.1*

Answers

Answer:

610.1

Explanation:

When we add or subtract the values, the number of significant figures after decimal in result must be equal to the given measurement having less number of decimal places.

In given values 377.1 has only decimal place thus in result after decimal there should be one digit only.

987.22 - 377.1 = 610.1

When we multiply or divide the values the number of significant figures must be equal to the less number of significant figures in given value.

Now we will calculate the difference between 7.69 and 4.0.

7.69 - 4.0 = 3.69

In given values 4.0 have less number of significant figures thus result must have only two significant figures . So we would round the result.

3.7

Which element is an inner transition metal?


uranium (U)

osmium (Os)

radium (Ra)

hafnium (Hf)

Answers

Answer:

Os

Explanation:

Atoms of different element can not have same atomic number because only same type of atoms combine to form element. Atoms belonging to different element can have different atomic number. Therefore, the correct option is option A.

What is element?

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same. Two or more than two atoms with different physical or chemical properties can not combine together to form an element.

Among all the given options, uranium (U) is an inner transition metal. Inner transition metal are the metals that belongs to f block of periodic table as their last electron goes into f subshell.

Therefore, the correct option is option A.

To know more about element, here:

https://brainly.com/question/8460633

#SPJ2

ALL OF THESE ARE FORMS OF MIXTURES EXECPT...

A. ALLOYS
B. NEON
C. COLLOIDS
D. SOLUTIONS

Answers

Answer:

B. NEON.

HOPE IT HELPED

an object sitting on the floor can have potential energy true or false

Answers

Answer:

True

Explanation

Any object that's still, has potential energy

Answer:

True

Explanation:

it just depends on an object's weight and its height above the ground

An increase in which of the following would increase the boiling point of a
liquid?

Answers

Answer:

The boiling point increases with increased pressure up to the critical point, where the gas and liquid properties become identical.

What tectonic plate boundary caused the formation of Mount Fuji?

Answers

Answer:

the Amurian plate, the  the Okhotsk plate, and the Filipino plate all converge in the region beneath Mount Fuji.

Explanation:

Calculate the average atomic mass of unknown element X. You determine that isotope 127X makes up 80%, isotope 126X makes up 17%, and isotope 128X makes up 3%.

A. 127.10 amu
B. 126.86 amu
C. 127.54 amu
D. 126.20 amu

Answers

Answer:

Option B. 126.68 amu

Explanation:

The following data were obtained from the question:

Isotope A (¹²⁷X):

Mass of A = 127

Abundance (A%) = 80%

Isotope B (¹²⁶X):

Mass of B = 126

Abundance (B%) = 17%

Isotope C (¹²⁸X):

Mass of C = 128

Abundance (C%) = 3%

Average atomic mass of element X =.?

Th4 average atomic mass of X can be obtained as follow:

Average atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

= [(127 × 80)/100] + [(126 × 17)/100] + [(128 × 3)/100]

= 101.6 + 21.42 + 3.84

= 126.68 amu

Therefore, the average atomic mass of X is 126.68 amu

Why are atoms neutral?
A They have neutrons in the nucleus
B. They have the same number of protons and electrons
They tend to have 8 valence electrons
D
None of the above

Answers

Answer:

B. They have the same number of protons and electrons

Explanation:

Protons have a charge of +1, electrons have a charge of -1, and neutrons have no charge, making them neutral. When there are the same number of protons as there are electrons, the charges balance out, leaving you with a neutral atom.

Please choose the best description, or definition of Faunal Succession.

principle stating that specific groups of organisms lived and died within a specific

time frame due to the ice age

principle stating that specific groups of fawns lived in a specific region and are

found in the rocks shoing fawns onl live in specific areas.

principle stating that specific layers of the earth have contain fauna of different

types showing biodiversity.

rinciple stating that specific groups of organisms have followed, or succeeded.

one another in a definite sequence through Earth history

Answers

Answer:

Principle stating that specific groups of organisms have followed, or succeeded one another in a definite sequence through Earth history

Explanation:

Principle stating that specific groups of organisms have followed, or succeeded one another in a definite sequence through Earth history describe Faunal succession because it is a principle that indicate that fossil plants and animals succeed each other in a sequential manner even if they occur in different places. Successive strata and faunas are linked together to form composite section in the Earth's history.

Answer:

the last one

Explanation:

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