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arsen [322]
2 years ago
8

What is mass in grams of

Chemistry
1 answer:
ELEN [110]2 years ago
5 0

The mass in grams 550 mL of salt water with a density of 1.50 g/cm³ is 825grams.

<h3>DENSITY:</h3>
  • The mass of a substance can be calculated by multiplying the density of the substance by its volume. That is;

Mass = density × volume

  • According to this question, the volume of the salt is 550mL while its density is given as 1.50g/mL. The mass is calculated as follows:

Mass = 1.50g/mL × 550mL

Mass = 825grams.

Therefore, the mass in grams 550 mL of salt water with a density of 1.50 g/cm³ is 825grams.

Learn more about density at: brainly.com/question/16894337

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How many moles of h are in 0.73 mole of c6h10s
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Answer:

7.3 mole

Explanation:

1 C6H10S gives 10H

0.73 mole of C6H10S gives X mole of Hydrogen

X= 0.73×10=7.3mole

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Which of the following is a nonrenewable resource?
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The answer is D, coal is a nonrenewable resource.

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The entropy of a system at 337 K increases by 221.7 J/mol•K. The free energy value is found to be –717.5 kJ/mol. Calculate the c
OlgaM077 [116]

<u>Answer:</u> The change in enthalpy for the given system is -642.8 kJ/mol

<u>Explanation:</u>

To calculate the change in enthalpy for given Gibbs free energy, we use the equation:

\Delta G=\Delta H-T\Delta S

where,

\Delta G = Gibbs free energy = -717.5 kJ/mol = -717500 J/mol    (Conversion factor: 1 kJ = 1000 J)

\Delta H = change in enthalpy = ?

T = temperature = 337 K

\Delta S = change in entropy = 221.7 J/mol.K

Putting values in above equation, we get:

-717500J/mol=\Delta H-(337K\times 221.7J/mol.K)\\\\\Delta H=-642787J/mol=-642.8kJ/mol

Hence, the change in enthalpy for the given system is -642.8 kJ/mol

4 0
3 years ago
How many moles are in 20 grams of Ca (Calcium)? *
liraira [26]

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Explanation:

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Hydrogen is a liquid below what temperature?
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<em>Answer:</em>

  • The hydrogen exist as a liquid at -253 degree C.

<em>Explanation:</em>

  • Hydrogen is found as a molecular form H2. In order to become liquid , it must be cooled below its critical temperature. It become liquid at -253 degree C or 423.17  degree F or 20.8 K.
  • So hydrogen become liquid at -253 degree Celsius.
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4 years ago
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