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3 years ago

PLEASE HELP ASAP!!!!!!!!

Chemistry

1 answer:

Step2247 [10]3 years ago

3 0

Answer:

1).There are 6.87 x 1023 atoms in 1.14 mol SO3, or sulfur trioxide (mol is the abbreviation for mole)

2).6.022*1023 R.P . is equal to 144

3)7.02 g Si

4)104*10 raised to 1

5)idk

6)142.04 g/mol

7)atom

8) idk

Explanation:

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A chunk of tin weighing 18.5 grams and originally at 97.38 °C is dropped into an insulated cup containing 75.7 grams of water at

weqwewe [10]

Answer:

22.44°C will be the final temperature of the water.

Explanation:

Heat lost by tin will be equal to heat gained by the water

$-Q_1=Q_2$

Mass of tin = $m_1=18.5 g$

Specific heat capacity of tin = $c_1=0.21 J/g^oC$

Initial temperature of the tin = $T_1=97.38^oC$

Final temperature = $T_2$ =T

$Q_1=m_1c_1\times (T-T_1)$

Mass of water= $m_2=75.7 g$

Specific heat capacity of water= $c_2=4.184 J/g^oC$

Initial temperature of the water = $T_3=21.52^oC$

Final temperature of water = $T_2$ =T

$Q_2=m_2c_2\times (T-T_3)$

$-Q_1=Q_2$

$-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)$

On substituting all values:

$-(18.5 g\times 0.21 J/g^oC\times (T-97.38^oC))=75.7 g\times 4.184 J/g^oC\times (T-21.52 ^oC)$

we get, T = 22.44°C

22.44°C will be the final temperature of the water.

5 0

4 years ago

EASY BUT I STILL NEED HELP

Jet001 [13]

Answer:

If I’m correct it is 3

Explanation:

4 0

3 years ago

Read 2 more answers

Name of Place

Rus_ich [418]

Explanation:

i hope it help byyyyyy6yyyyyyyyyyyyyyyyyyeeeeeeee

5 0

3 years ago

To what temperature must

KatRina [158]

Answer:

586 C degrees

Explanation:

because of gas laws. Thanks hope this helps please vote it up!

8 0

3 years ago

If I have a 30,000 mL container that holds 65 moles of gas at a temperature of 205 degrees Celsius, what is the pressure inside

AnnyKZ [126]

Answer:

85.384 atm or 64608.13086 mmHg

Explanation:

PV= NRT

P= NRT/V

n= mols

R= gas constant (i used .0821 for atm)

T= Temp in Kelvins (Celsius degrees + 273)

V= in L

(65molsx480kx.0821)/30L

4 0

3 years ago