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3 years ago

What are the special characteristics of chromium, iron , titanium and manganese

Chemistry

1 answer:

adoni [48]3 years ago

7 0

Answer:

The two most useful properties of titanium include its resistance to corrosion and its high strength-to-weight ratio.

Chromium metal is highly valuable due to its high corrosion resistance and hardness.

Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.

Explanation:

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You have a 25.0 L cylinder of helium at a pressure of 132 atm and a temperature of 19 [infinity]C. The He is used to fill balloo

Oduvanchick [21]

Answer: Number of balloons that can be filled with He are 1397.

Explanation:

The given data is as follows.

V = 25 L He , P = 131 atm

T = $19^{o}C$ = (19 + 273) K

= 292 K

According to ideal gas equation,

PV = nRT

where, n = $\frac{PV}{RT}$

= $\frac{131 \times 25}{0.082 \times 292}$

= 136.76 mol of He

The data for small balloons is given as follows.

T = $27^{o}C$ = (27 + 273) K

= 300 K

P = 732 = 0.963 atm

V = 2.50 L

Now, we will calculate the number of moles as follows.

n = $\frac{PV}{RT}$

= $\frac{0.963 \times 2.50}{0.082 \times 300}$

= 0.098 mol

So, number of balloons that can be filled with He are calculated as follows.

n = $\frac{N_{1}}{N_{2}}$

= $\frac{136.76}{0.098}$

= 1397.60 balloons

or, = 1397 balloons (approx)

Thus, we can conclude that number of balloons that can be filled with He are 1397.

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4 years ago

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What are the special characteristics of chromium, iron , titanium and manganese​

What are the special characteristics of chromium, iron , titanium and manganese