1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AURORKA [14]
3 years ago
12

3. A helium laser emits light with a wavelength of 6.33 x 10^-7m. What is

Chemistry
1 answer:
HACTEHA [7]3 years ago
7 0

Answer:

4.52 x 10¹⁴ cycles/s

Explanation:

From c = f·λ => f = c/λ = (3.0 x 10⁸ m/s)/(6.63 x 10⁻⁷m) = 4.52 x 10¹⁴ cycles/s.

f = frequency = ?

λ = wavelength = 6.63 x 10⁻⁷ meter

c = speed of light in vacuum = 3.0 x 10⁸ meters/s

You might be interested in
MnO2(s) + 4HCl(aq) → MnCl2(aq) + Cl2(g) + H2O How many grams of HCl are required to produce 11.2 liters of Cl2? The reaction occ
zavuch27 [327]

Answer:

73.0g of HCl

Explanation:

Check the attachment below for explanation.

3 0
3 years ago
What is the Ka value if pka=10.36
siniylev [52]
Pka = - log ka

10.36 = - log ka

Ka = .......
5 0
3 years ago
Read 2 more answers
]
crimeas [40]

Answer:

Answer is A Peasants were valued members of society in Japan but not in Europe.

Explanation:

8 0
3 years ago
Calcium is a nontoxic metal that is used in supplements to maintain strong bones. Under high pressure conditions, over about 320
Lera25 [3.4K]

Explanation:

It is known that in a simple cubic unit cell the atoms are only present at the corner of the unit cell. This means that there are in total 8 atoms present in a simple cubic unit cell.

Therefore, in one simple cubic unit cell sharing of one atom is only \frac{1}{8}.

Hence, the total number of atoms in a unit cell will be as follows.

            8 \times \frac{1}{8} = 1

Thus, we can conclude that there is 1 calcium atom present in each unit cell.

4 0
3 years ago
What mass of sodium sulfate is needed to make 2.5 L of 2.0 M solution?
Serjik [45]
D) 710 g

Step by Step:
Multiply 2.5 L by 2.0 M to solve for moles
2 mol/L • 2.5 L= 5 mol

Find formula weight of sodium sulfate

Na2SO4-142.04 g/mol

Na- 2(22.99)=45.98
S-32.06
O-4(16)=64

Multiply miles by formula weight

5 mole • 142.04 g/mol=710.2 g
7 0
3 years ago
Other questions:
  • Can someone help me I need to convert the following...
    8·1 answer
  • Which of the following elements most readily accepts electrons? A. silicon B. chlorine C. sulfur D. phosphorus
    11·1 answer
  • 18. This reaction uses hydrogen
    9·1 answer
  • Rank these oligonucleotides according to distance traveled in an electrophoretic separation
    10·1 answer
  • A 12.0 wt% solution of CaCl2 (110.98 g/mol) has a density of 1.107 g/mL.
    15·1 answer
  • Zirconium orbital diagram
    9·1 answer
  • 12 moles of sodium into grams
    5·1 answer
  • Câu 15: Nguyên tử X nặng gấp 2 lần nguyên tử cacbon. Nguyên tử X đó có nguyên tử khối và
    6·1 answer
  • How many moles of NaCl are there in 3.90 x 10^24 particles?
    10·1 answer
  • 1. Using the periodic table and your knowledge of patterns and trends on the table, which of the following elements is the best
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!