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patriot [66]
4 years ago
9

1. The molar mass of BeF2

Chemistry
1 answer:
oksano4ka [1.4K]4 years ago
8 0

Answer:

47.01 g/mol is molar mass

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What is the most likely way a chemist would be involved in the production of<br> a computer chip?
ZanzabumX [31]

Answer: Computer chips are very complex, maybe there are things insode that chemists are familiar with. Maybe they can give insight about this.

Explanation:

4 0
3 years ago
Generally the periodic trends of the d and f block is similar to the main group elements trends.
exis [7]

Answer:

False

Explanation:

7 0
3 years ago
What is the frequency of radiation whose wavelength is 2.51 x 10 -7m?​
hodyreva [135]

The frequency of radiation : 1.2 x 10¹⁵ Hz

<h3>Further explanation </h3>

Radiation energy is absorbed by photons

The energy in one photon can be formulated as

\large{\boxed{\bold{E\:=\:h\:.\:f}}}

Where

h = Planck's constant (6,626.10⁻³⁴ Js)

f = Frequency of electromagnetic waves

<h3>f = c / λ </h3>

c = speed of light

= 3.10⁸  m/s

λ = wavelength

Wavelength-λ is 2.51 x 10⁻⁷m

The frequency :

\tt f=\dfrac{3.10^8}{2.51\times 10^{-7}}=1.2\times 10^{15}

8 0
3 years ago
What is the mass of 3.95 l of methane gas at 0.870 atm and 35.0 degrees celsius?
dalvyx [7]

Answer:

2.174 gm

Explanation:

PV = nRT       n = number of moles

                       R = gas constant = .082057 L-atm/(K-mol)

                           T must be in units of K

.870 (3.95) = n (.082057)(35+273.15)    

   solve for n = .1359 moles

Methane mole weight (CH4) = 16 gm / mole

.1359 moles  *  16 gm/mole = 2.174 gm

5 0
2 years ago
Write the formula of the first 5 members in the series of alkynes​
professor190 [17]
Ethene (C2H4)
Propene (C3H6)
Butene (C4H8)
Pentene (C5H10)
Hexene (C6H12)
5 0
3 years ago
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