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8090 [49]
4 years ago
14

What is the term used by particular kind of matter Called??

Chemistry
1 answer:
weqwewe [10]4 years ago
3 0

Answer:

\boxed{\mathrm{substance}}

Explanation:

The term used by particular kind of matter is called substance.

A substance is a particular kind of matter because it has physical properties.

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5.60 g of an unknown gas at STP fills a 500 mL flask. What is the molar mass of the gas
ale4655 [162]

Hey there!

From ideal gas equation we know,  PV = nRT

All the terms have their usual significance.

PV =w/M * RT

( where , n is number of moles = w/M,   we = weight of gas, M = molecular weight of the gas)

Therefore,  PV = wRT/M

At standard conditions ,  value of pressure, P = 1atm and standard temperature, T = 273K

And value of universal gas constant, R = 0.082 lit. atm. K⁻¹.mol⁻¹

Given that, weight of gas,

w = 5.60g and volume of gas,

V = 500mL = 0.5 Liters

Therefore, substituting all the value, we get   :

  Molar mass = 5.60 * 0.082 * 273 / 1 * 0.5

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3 0
3 years ago
Write the structural formula for m-chlorophenyl ethyl ether.
Sliva [168]

Answer: C(OCH2CH3)CHCClCH(CH)2

Explanation:

The structural formula for m-chlorophenyl ethyl ether is

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The structural formula shows the step-by-step linkages.

4 0
3 years ago
The time necessary for the decay of one- half sample of a radioactive substance is a _____. mass defect daughter half life nucli
Mazyrski [523]

Answer: half life

Explanation: Radioactive decay follows first order kinetics and the time required for the decay of a radioactive material is calculated as follows:

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x= amount of substance left after time t

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when one half of the sample is decayed, one half of the sample remains and t can be represented as t_{1/2}

at t= t_{1/2}, x=\frac{a}{2}

t_{1/2}=\frac{2.303}{k}\hspace{1mm}log\frac{a/2}{a}

t_{1/2}=\frac{0.693}{k}

3 0
3 years ago
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3 years ago
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miss Akunina [59]
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4 0
3 years ago
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