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
Nataly_w [17]
3 years ago
12

A sound wave has a wavelength of 0.7 miles and a frequency of 500 Hertz what is the speed

Chemistry
1 answer:
yaroslaw [1]3 years ago
4 0

speed equals wavelength times frequency so

.7 x 500 = 350

You might be interested in
3 H2 (g) + N2 (g) 2 NH3 (g)
ale4655 [162]

Answer:

Mass = 0.697 g

Explanation:

Given data:

Volume of hydrogen = 1.36 L

Mass of ammonia produced = ?

Temperature = standard = 273.15 K

Pressure = standard = 1 atm

Solution:

Chemical equation:

3H₂ + N₂       →      2NH₃

First of all we will calculate the number of moles of hydrogen:

PV  = nRT

R = general gas constant = 0.0821 atm.L/mol.K

1atm ×1.36 L = n × 0.0821 atm.L/mol.K × 273.15 K

1.36 atm.L = n × 22.43 atm.L/mol

n = 1.36 atm.L / 22.43 atm.L/mol

n = 0.061 mol

Now we will compare the moles of hydrogen and ammonia:

                 H₂         :          NH₃

                  3          :            2

                0.061     :         2/3×0.061 = 0.041

Mass of ammonia:

Mass = number of moles × molar mass

Mass = 0.041 mol × 17 g/mol

Mass = 0.697 g

4 0
3 years ago
In this prelab exercise, you will calculate how to prepare solutions that you will make in lab. Below is an example of how to pr
Anastasy [175]

Explanation:

Molarity=\frac{\text{Moles of compound}}{\text{Volume of solution (L)}}

Moles of compound =

\frac{\text{mass of compound}}{\text{Molar mass of compound}}

We have ;

Volume of solution = 600 mL = 0.600 L ( 1 mL = 0.001 L)

Moles of NaOH = n

Molarity of the solution = 3 M

3M=\frac{n}{0.600 L}

n = 3 M × 0.600 L = 1.800 mol

Mass of 1.800 mole sof NaOH :

1.800 mol × 40 g/mol = 72.0 g

Preparation:

Weight 72.0 grams of sodium hydroxide and add it to the 500 mL of volumetric flask along with some water. Dissolve the all the solute by adding small proportion of water. After the solution becomes clear make the water upto the mark of 500 ml.

Transfer the solution to a bigger beaker  and 100 mL of water more to it.

6 0
3 years ago
What is an indication that a lake is healthy?
N76 [4]

Answer:

D

Explanation:

As bioindicators are the organism that indicate or monitor the health of the environment

7 0
3 years ago
Read 2 more answers
Alkanes are hydrocarbons that contain what type of bonds
olga2289 [7]
Carbon carbon triple bonds
3 0
3 years ago
Read 2 more answers
Two positively charged objects (N pole) are separated by a large distance. One of the positively charged objects (N pole) is rep
Eddi Din [679]

Answer:

B

Explanation:

Applying law of electrostatic which states that like charges repel each other and unlike charges attract each other

N and S are unlike charges that turn and make the former repulsive force (due to two like charges N and N)to <em>reduce</em> and attractive force between N and S to <em>increa</em><em>se</em>

6 0
3 years ago
Other questions:
  • On a separate sheet of paper, write the formulas for the missing components of these neutralization reactions.
    8·2 answers
  • While David was riding his bike around the circular cul-de-sac by his house he wondered if the constant circle motion was having
    11·1 answer
  • How many moles are in 8.0 x 10^13 atoms of Ag?<br>explain please ​
    14·1 answer
  • Jena's blueberry-pineapple smoothie measured 200g and was contained in 300ml. What is it's density?
    9·2 answers
  • Which generally occurs as temperature increases?
    13·2 answers
  • A slice of Swiss cheese contains 41 mg of sodium.
    7·1 answer
  • QUESTION: What is the main function (job) of the Nervous System?
    5·2 answers
  • Nuclear energy, energy is inside what
    5·1 answer
  • This is the chemical equation for the production of ammonia (chemical formula: NH3) from Nitrogen and Hydrogen (N2 and H2):
    14·1 answer
  • The electronegativity of the element affects all of the following except a- type of bond it forms with other elements b- the boi
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!