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Paraphin [41]
3 years ago
5

What is the mass in grams of1.0mole of (NH4)2S?​

Chemistry
1 answer:
jeka943 years ago
7 0
7272727282828383jsjsjsj
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If 11.9 kJ are used to heat a sample of water the temperature increases from 20.0°C to
Kipish [7]

Answer:

m=4.51g

Explanation:

Hello!

In this case, since the energy involved during a heating process is shown below:

Q=mCp\Delta T

Whereas the specific heat of water is 4.184 J/(g°C), we can compute the heated mass of water by the addition of 11.9 kJ (11900 J) of heat as shown below:

m=\frac{Q}{Cp\Delta T}

Thus, by plugging in, we obtain:

m=\frac{11900J}{4.184\frac{J}{g\°C}(650\°C-20.0\°C)}\\\\m=4.51g

Best regards!

7 0
2 years ago
A. Electrons have a charge of_____
Dmitry [639]
Electrons: negative
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3 years ago
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What is the best statement about the data collected in Amir’s table?
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1) theory

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Explanation:

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3 years ago
Somebody please help me!!
mariarad [96]

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The given isotope is Br 80

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