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
mafiozo [28]
3 years ago
10

A nurse practitioner prepares an injection of promethazine, an antihistamine used to treat allergic rhinitis. If the stock bottl

e is labeled 30. mg/mL and the order is a dose of 14.0 mg , how many milliliters will the nurse draw up in the syringe?
Chemistry
1 answer:
notsponge [240]3 years ago
4 0

Answer: Volume is 0.466 ml.  Maybe in this case it is safer to round downward.

Explanation:  V =  14.0 mg / 30 mg/mL  = 0.466.. ml

You might be interested in
Choose all the answers that apply. Sulfuric acid is found in acid rain. Its chemical formula is H2SO4. Which of the following is
AleksandrR [38]

Answer:

Looks like 2 hydrogen and sulfuric oxide 4

7 0
3 years ago
The parents of a young child carefully placed plastic plug protectors in all the electrical outlets in their house. Which statem
crimeas [40]

The answer is B) Electrical outlets contain metal wires that are good conductors of electricity. In order to promote electrical safety, the parents covered the outlets with plastic, an insulator that prevents electrical current from flowing to another object.

7 0
4 years ago
Read 2 more answers
Which of the following is NOT part of the kinetic molecular theory of gases?
kondaur [170]

A. There is very little empty space in a gas in not part of the kinetic molecular theory of gases.

Explanation:

The kinetic molecular theory of gases follows following points:

Kinetic energy does not change or get dissipated when gas molecules collide with each other. No attraction or repulsion between gas particles is observed. Particles of  gas are moving randomly in all directions. Temperature increase cause the rapid movement of gas particles.The gas particles are placed very far from each other as compared to liquid.

The empty space in a gas is large because gas gets compressed in the small volume of the container also.

7 0
3 years ago
An aqueous nacl solution is made using 112 g of nacl diluted to a total solution volume of 1.00 l. calculate the molarity, molal
worty [1.4K]
Q1)
molarity is defined as the number of moles of solute in 1 L of solution.
the NaCl solution volume is 1.00 L
number of moles NaCl  = NaCl mass present / molar mass of NaCl 
NaCl moles = 112 g / 58.5 g/mol = 1.91 mol 
the number of moles of NaCl in 1.00 L of solution is - 1.91 mol 
therefore molarity of NaCl is 1.91 M

Q2) 
molality is defined as the number of moles of solute in 1 kg of solvent.
density is mass per volume. 
density of the solution is 1.08 g/mL. 
therefore mass of the solution is = density x volume 
mass = 1.08 g/mL x 1000 mL = 1080 g
since we have to find the moles in 1 kg of solvent 
mass of solvent = 1080 g - 112 g = 968 g
number of moles of NaCl in 968 g of solvent - 1.91 mol 
therefore number of NaCl moles in 1000 g - (1.91 mol / 968 g) x 1000 g/kg = 1.97 mol/kg
molality of NaCl solution is 1.97 mol/kg


Q3) 
mass percentage is the percentage of mass of solute by total mass of the solution 
mass percentage of solution = mass of solute / total mass of the solution 
mass of solute = 112 g
total mass of solution = 1080 g
mass % of NaCl = 112 g / 1080 g x 100%
therefore mass % of NaCl = 10.4 %
answer is 10.4 %
5 0
3 years ago
The growth of the plants that the animal used for food could not keep up with the needs of the population. there was so little f
WARRIOR [948]

In this case, the population has exceeded the available food, thus causing a decline in the population.

<h3>What is carrying capacity?</h3>

It is the maximum population size that an ecosystem can sustain based on the resources that it has.

Above the carrying capacity, resources become extremely limited and competition becomes stiff in the population. Thus, the population declines.

Below the carrying capacity, resources are abundant and the population grows. Most of the time, a mature population hovers around the carrying capacity of the ecosystem.  

More on carrying capacity can be found here: brainly.com/question/797991

#SPJ1

8 0
2 years ago
Other questions:
  • Bob is investigating whether the density of water changes with temperature. Which of the following variables should he change in
    13·1 answer
  • Which of the 3 Basic States of Matter energy to flow but not energy to boil?
    7·1 answer
  • The atomic number is
    9·1 answer
  • How many moles are in 1.2 x 10 ^ 3 grams of ammonia
    5·1 answer
  • I NEED IMMEDIATE HELP!!!
    12·2 answers
  • Acid rain is represented by the formula H2SO4. How many atoms of sulfur are present in one molecule of acid rain?
    6·1 answer
  • Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C . Assume the specific heat capacity of cycloh
    8·1 answer
  • A student mixes baking soda and vinegar in a glass. Do you think any new substances are being created in this mixture? If so, ho
    6·2 answers
  • Plastic is used for making a large variety of articles of daily use and these articles are very attractive. But it is advised to
    15·2 answers
  • El mercurio ha sido utilizado como elemento para medir la temperatura porque Es una mezcla. Al aumentar la temperatura se dilata
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!