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Sophie [7]
3 years ago
8

What is the density of a cylinder with a mass of 65.34g, a height of 15.60 cm and a radius of 1.34 cm?

Chemistry
1 answer:
jonny [76]3 years ago
5 0

Answer:

d = 0.743 g/cm³

Explanation:

Given data:

Mass of cylinder = 65.34 g

Height = 15.60 cm

Radius = 1.34 cm

Density of cylinder = ?

Solution:

Volume of cylinder:

V = πr²h   (π = 22/7)

V = 88 cm³

Density of cylinder:

d  = m/v

d = 65.34 g / 88 cm³

d = 0.743 g/cm³

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3 0
3 years ago
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Name the reaction processes that lead to the two types of synthetic polymers.
Ksivusya [100]

The reaction processes that lead to the two types of synthetic polymers are chain reaction polymerization and step reaction Polymerization.

<h3>What is Polymerization Reaction? </h3>

The chemical reaction which involves the addition of monomers to form higher molecular mass molecules is known as polymerization. There are two basically two types of polymerization, one is chain-reaction (or addition) and the other is step-reaction (or condensation) polymerization.

<h3>Chain-reaction (addition) polymerization</h3>

One of the most common and important types of polymer reactions is chain-reaction (addition) polymerization. This type of polymerization involves three step process including two chemical entities. The first which is known simply as a monomer. It is initially exists as simple units. Normally in all cases, the monomers must have at least one carbon-carbon double bond. Ethylene is one of the best known example of a monomer which is used to make a common polymer.

<h3>Step-reaction (condensation) polymerization </h3>

It is second type of polymerization. This polymerization method is used to produce polymers having lower molecular weight as compared to chain reactions and requires higher temperatures to occur.

Unlike chain reaction polymerization, this reactions include two different types of di-functional end groups or monomers which react with one another, forming a chain.

Step wise polymerization produces a small molecular by-product (water, HCl, etc.). The example is the formation of Nylon 66.

Thus, we concluded that the reaction processes that lead to the two types of synthetic polymers are chain reaction polymerization and step reaction Polymerization.

learn more about Polymerization reaction:

brainly.com/question/7025919

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7 0
2 years ago
Determine the percent composition of Lithium in Li3PO3 (lower case BOTH 3)
zepelin [54]

Answer:

A. 20.866%

Explanation:

First, we calculate molar mass of Li3PO3

Molar mass of Li3PO3 = 6.9 (3) + 31 + 16(3)

= 20.7 + 31 + 48

= 99.7g/mol

To calculate the percent composition of Lithium, we say:

Mass of lithium in compound/mass of compound × 100

% composition = 20.7/99.7 × 100

= 0.208 × 100

= 20.8%.

3 0
3 years ago
The difference between a monatomic ion and a polyatomic ion
lesya692 [45]

Answer: Simple,

Explanation: There is only one atom in a monoatomic ion and there are many atoms in a polyatomic

5 0
3 years ago
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What is the molar mass of bromine gas in grams
-BARSIC- [3]

Answer:

79.904 g/mol

Explanation:

The molar mass of bromine is 79.904 g/mol.

7 0
3 years ago
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