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3 years ago

What is the density of a material if its mass is 32 grams and its volume is 8 milliliters

Chemistry

1 answer:

vagabundo [1.1K]3 years ago

5 0

Answer:

4 kilograms/liters

Explanation:

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When 0.422g of phosphorus is burned, 0.967g of a white oxide is obtained.

nata0808 [166]

Moles = mass / molar mass

moles P = 0.422 g / 30.97 g/mol = 0.01363 mol 
moles O = (0.967 g - 0.422g) / 16.00 g/mol = 0.03406 moles 

So ratio moles P : moles O 
= 0.01363 mol : 0.03406 mol 

Divide each number in the ratio by the smallest number 

(0.01363 / 0.01363) : (0.03406 / 0.01363) 
= 1 : 2.5 

The empirical formula needs to be the smallest whole number ratio of atoms in the molecules. Since you have a non-whole number, multiply the ratio by the smallest number needed to make both number whole numbers. In this case x 2 

2 x (1 : 2.5) 
= 2 : 5

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2 years ago

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Explain the environmental benefits of recyling paper products.

jenyasd209 [6]

Answer:

Explanation:

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3 years ago

Is Himalayan mountain still forming today? Explain plzzzz:/

never [62]

The continued growth in the Himalayas is likely due to the Indian tectonic plate stillmoving slowly but surely northward. We know the plate is still moving in part because of the frequent earthquakes in the region

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3 years ago

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Which isomer of 1-bromo-2-tert-butylcyclohexane reacts faster when refluxed with potassium tert-butoxide?Draw the structure of t

ivolga24 [154]

Answer:

See explanation and image attached

Explanation:

The reaction of 1-bromo-2-tert-butylcyclohexane with potassium tert-butoxide is an elimination reaction that occurs by E2 mechanism.

The E2 reaction proceeds faster when the hydrogens are in an antiperiplanar position at an angle of 180 degrees.

This is only attainable in the trans isomer of 1-bromo-2-tert-butylcyclohexane. Hence trans 1-bromo-2-tert-butylcyclohexane reacts faster with potassium tert-butoxide

8 0

3 years ago

Predict the products of below reaction, and whether the solution at equilibrium will be acidic, basic, or neutral.

kati45 [8]

Answer: The product of the given reaction is $HNO_{3}$ and the solution at equilibrium will be acidic.

Explanation:

When two or more chemical substances react together then it forms new substances and these new substances are called products.

For example, $3N_{2}O_{5} + 3H_{2}O \rightarrow 6HNO_{3}$

This shows that nitric acid $(HNO_{3})$ is the product formed and it is an acidic substance.

Hence, the solution at equilibrium will be acidic in nature.

Thus, we can conclude that the product of the given reaction is $HNO_{3}$ and the solution at equilibrium will be acidic.

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2 years ago