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
katovenus [111]
2 years ago
12

Which of the following is a reasonable way of describing the density of a gas at STP

Chemistry
1 answer:
dedylja [7]2 years ago
8 0

Answer:the answer is a

Explanation:

You might be interested in
A CaCl2 solution is given to increase blood levels of calcium. If a patient receives 6.1 mL of a 12 % (m/v) CaCl2 solution, how
Yuliya22 [10]

Mass of CaCl₂ = 0.732 g

<h3>Further explanation</h3>

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

\tt \%(m/v)\rightarrow 12\%=\dfrac{mass~CaCl_2}{volume~of~solution}\times 100\%\\\\mass~CaCl_2=12\%\times 6.1\div 100\%\\\\mass~CaCl_2=0.732~g

5 0
3 years ago
If you collect 1.75 L of hydrogen gas during a lab experiment when the room temperature is 23oC and the barometric pressure is 1
ziro4ka [17]

Answer:

n=0.0747mol

Explanation:

Hello,

In this case, since we can consider hydrogen gas as an ideal gas, we check the volume-pressure-temperature-mole relationship by using the ideal gas equation:

PV=nRT

Whereas we are asked to compute the moles given the temperature in Kelvins, thr pressure in atm and volume in L as shown below:

n=\frac{105kPa*\frac{0.009869atm}{1kPa}*1.75L}{0.082\frac{atm*L}{mol*K}*(23+273.15)K} \\\\n=0.0747mol

Best regards.

8 0
3 years ago
How do I find the moles of OH- which reacted (mol) in the titration. Table Attached
BaLLatris [955]

Answer:

It is equal to the number of moles of acid that reacted. When Oxalic acid is your limiting reactant it is the # of moles of oxalic acid used. When NaOH is your limiting reactant it is equal to the number of moles of NaOH used.

4 0
3 years ago
PLEASE HELP ME
vichka [17]
Light moves in a straight line except at surfaces between different transparent materials, where its path bends.
4 0
3 years ago
!!!!!!!!!!!!SCIENCE!!!!!!!!!!!!<br><br> How are radio waves used on Earth?
nika2105 [10]

Answer:

artificially generated radio waves are used for fixed and Mobile Radio communication broadcasting radar and other navigation systems communication satellites computer networks and innumerable other applications

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the approximate ratio of [NO2-] to [HNO2] in order to buffer a solution at pH=4.0?
    8·1 answer
  • To find the number of neutrons in To find the number of neutrons in and <br> you would subtract
    15·1 answer
  • WILL GIVE MOST BRAINLY ( PLEASE HURRY )
    5·2 answers
  • Calculate the molarity of a 10.0% (by mass) aqueous solution of hydrochloric acid.
    9·1 answer
  • The periodic table is based on an element's
    11·1 answer
  • If 15 grams of Carbon dioxide is produced in a chemical reaction, how many grams of Carbon must be consumed in the reaction if w
    15·1 answer
  • True Or False: "the baseball fans are cheering therefore a ball was hit out of the park" is an example of an inference.
    8·1 answer
  • Trying to explain why a cactus needs little water to survive is an example of
    6·1 answer
  • Advanced flow measuring devices ? <br> I need info about this topic please
    12·1 answer
  • Name the following alkane:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!