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kondaur [170]
3 years ago
7

24H2S + 16HNO3 3Sg+ 16NO + 32H2O

Chemistry
1 answer:
jeka943 years ago
3 0

Answer:

24 sultur with 48hydrogen+16 hydrogen,nitrogen and 48 oxygen+16 nitrogen,16 oxygen+62hydrogen and 32 oxygen

Explanation:

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Some solutes have large heats of solution, and care should be taken in preparing solutions of these substances. The heat evolved
OLga [1]

Answer:

Final temperature of water is 83.8°C

Explanation:

In 500.0mL of a 6.00M NaOH solution, there are:

0.5000L × (6.00mol NaOH/ L) = <em>3.00moles of NaOH</em>

As the heat involved in dissolution is 44.5 kJ/mol, when the solution is dissolved:

44.5kJ/mol × 3.00moles = 133.5kJ = 133500J

Using coffee-cup calorimeter equation:

q = m×C×ΔT

<em>Where q is heat, m is mass of water (500.0g), C is specific heat of water (4.186J/g°C) and ΔT is change in temperature</em>

<em />

133500J = 500.0g×4.186J/g°C×(X-20.0°C)

63.8 = (X-20.0°C)

83.8°C = X

<em>Final temperature of water is 83.8°C</em>

3 0
3 years ago
How many moles are in 157 L of CH4 at STP​
Murljashka [212]

Answer:

7.01 mol CH4

Explanation:

STP means standard temperature and pressure, so they are basically telling you that the gas is at 1 atm and 273 K (0 degrees celsius). Now that we have the pressure, volume, and temperature we can use the ideal gas law and solve for n or moles

PV=nRT

n=PV/RT

n=(1)(157)/(0.08206)(273)

n=7.0081 (round to 3 sigfigs)

n=7.01 mol

8 0
4 years ago
Help which one will it be
salantis [7]

Answer:

D

Explanation:

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It would be his third law

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