Question

A sample of MgCO3 is 50% pure. If on heating
4.0 g of MgO and 4.4 g of CO2

are formed, calculate amount
of MgCO, taken. (Mg = 24, C= 12, 0= 16)​

Answer 1

Answer:

Electronic Controller uses electrical signals and digital algorithms to perform its receptive, comparative and corrective functions. Principles of Operation. An electronic sensor (thermocouple, RTD or transmitter) installed at the measurement location continuously sends an input signal to the controller.

Explanation:

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Answer 2

Answer:

x=4×4.4=8.4g

Explanation:

when the sample is 100%

Mgco3....>mgo+co2

84g 20g 44g

when sample is 100%pure84g of mgco3 produces 40g

mgo and 44 co2 (: 1 mol give 1 mol)

mgco3......> mgo+ co2

42g 20g 22g

using low of conservative of mass

x=4×4.4=8.4g

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