What does how will u experiment mean in making a science project

1 answer:

7 0

How are you going to experiment means how will you show your project in a real life situation like a penny being cleaned with different acids.

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A compound has the empirical formula CH2O. If the compound’s molecular mass is 180 g/mol, determine the molecular formula of the

Umnica [9.8K]

The molecular formula will be a multiple of the empirical CH2O. One unit of CH2O has a mass of 12+2*1+16 = 30 g. This means that if our compound has a molecular mass of 180 g/mol, we can divide 180 / 30 = 6 units, and our compound has 6 units of CH2O. This means that its molecular formula is C6H12O6.

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Which of the following statements does not describe the structure of an atom? An atom has a small, dense center called the nucl

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<span>Inside the nucleus of an atom are protons and electrons. </span>

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What two elements are commonly found in Mica, Quartz and Feldspar? Explain your answer.

kifflom [539]

Answer:

oxygen and silicon, both are common

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Write .. hot copper metal reacts with chlorine gas to form solid green copper chloride

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If you have 10 grams of Lithium Oxide what will the volume be? Show your work

gogolik [260]

Answer:

Volume occupied by 10 grams of Lithium Oxide at STP is 7.52 L

Explanation:

STP (Standard Temperature and Pressure) : It is used while performing calculation on gases and provide standards of measurements while performing experiment.

According to IUPAC (International Union of Pure And applied Chemistry) , standard temperature is 273.15 K and Pressure is 100 kPa (0.9869 atm). At STP condition 1 mole of substance occupies 22.4 L volume .

Molar mass of Lithium Oxide = 29.8 g/mol

$Li_{2}O$ = 2(6.9) + 15.99 = 29.8