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larisa [96]
3 years ago
11

Which statement best describes the process of making a solution by diluting a stock solution

Chemistry
1 answer:
liberstina [14]3 years ago
3 0

Answer:

Add more solvent to decrease the concentration

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CH4+2O2-->2H2O+CO2 chemical reaction

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A sample of (NH4)2SO4 contains 0.750 mole. what is the mass of the sample​
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2 years ago
A container with 3.0 moles of gas has a volume of 60.0L with a temperature at 400.K what is the pressure
iris [78.8K]

Answer: P= 1.64 atm

Explanation: solution attached.

Use Ideal gas law

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3 0
3 years ago
I need help with number 8 please help ASAP.
Rzqust [24]

Answer:

33.33% = 33%

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1 mole of MCO3 will produce → 1 mole of CO2

We need to get the number of mole of CO2:

and when we have 0.22 g of CO2, so number of mole = mass / molar mass

Moles = 0.22 g / 44 g/mol = 0.005 mole

Moles of Mg = moles of CO2 = 0.005 mole

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Percent of MgCO3 by mass of Mg = 0.42 g / 1.26 * 100

=33.33 %

8 0
3 years ago
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