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
alexgriva [62]
3 years ago
5

Consider that you collect hydrogen gas over water in an upside-down test tube. If the atmospheric pressure is 1.00, which of the

following statements are true? Select all that apply.A. The total pressure in the test tube is higher than the atmospheric pressureB. The total pressure in the test tube is equal to the atmospheric pressureC. The total pressure in the test tube is lower than the atmospheric pressureD. The pressure of hydrogen in the test tube is higher than the atmospheric pressureE. The pressure of hydrogen in the test tube is equal to the atmospheric pressureF. The pressure of hydrogen in the test tube is lower than the atmospheric pressure
Chemistry
1 answer:
kkurt [141]3 years ago
6 0

Answer:

Correct answers are B and F.

Explanation:

Inside the test tube after a certain time, the pressure inside of the test tube must be equal to the atmospheric pressure, the hydrogen displaces the water inside the tube until the pressure is the same with the atmosphere.

The hydrogen pressure inside the tube must be lower than the atmospheric pressure because otherwise the water inside it would go out until it reaches the atmosphere pressure. The atmospheric pressure is equal to the addition of the hydrogen and water pressures.

You might be interested in
What is the mass in grams of 5.25 x 1024 molecules of NaOH?
Colt1911 [192]

Answer: The mass is 348.8g

Explanation:

We begin by using Avogadro's number to convert the number of molecules of  Sodium Hydroxide to moles.

6.02 x 10∧23 molecules of NaOH -------> 1 mole of NaOH

∴ 5.25 x 10∧24 molecules of NaOH -------> 1/ 6.02 x 10∧23 x 5.25 x 10∧24 =

                                                                    8.72moles.

Having found the number of moles, we then move from moles to gram by using the molar mass of NaOH (i.e the mass of 1 mole of NaOH).

1 mole of NaOH is equivalent to 40g (Molar Mass)

8.72 moles of NaOH would be equivalent to; 40/ 1  x 8.72 = 348.8g

The mass in 5.25 x 10∧24molecules of NaOH is 348.8g

4 0
3 years ago
How do you express relative amounts of each element in a compound?
Lina20 [59]
Use of the empirical formula
3 0
3 years ago
What do the crust of the outer most mantle form?
vovikov84 [41]
The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the Lithosphere.
4 0
3 years ago
PLLLLEEAASEEE HELLPP!!
nekit [7.7K]

<u>Answer:</u> The correct option is C) 1.68 mol/L

<u>Explanation:</u>

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

\text{Molarity of solution}=\frac{\text{Given mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (L)}} .....(1)

Given values:

Given mass of C_6H_{12}O_6 = 150 g

Molar mass of C_6H_{12}O_6 = 180 g/mol

Volume of the solution = 0.50 L

Putting values in equation 1, we get:

\text{Molarity of solution}=\frac{150}{180\times 0.50}\\\\\text{Molarity of solution}=1.68M

Hence, the correct option is C) 1.68 mol/L

7 0
3 years ago
Draw the major organic product for the reaction of 1-phenylpropan-1-one with the provided phosphonium ylide.
prohojiy [21]

Answer:

2-methylene propylbenzene

Explanation:

The Wittig Reaction is a reaction that converts aldehydes and ketones into alkenes through reaction with a phosphorus ylide.

The ketone in this case is 1-phenylpropan-1-one. The provided phosphonium ylide is shown in the image attached. The reaction involves;

i) alkylation  

ii) addition

The product of the major organic product of the reaction is 2-methylene propylbenzene.

4 0
3 years ago
Other questions:
  • If z=4.0 and y= 7.2 what is the value of X? Z=y/x
    13·1 answer
  • opposite poles of different magnet will attract each other and light poles or repel each other this is an example of which of th
    8·1 answer
  • Why does a hot water bottle feel warm? Options: Molecules in the hot water bottle are moving faster than molecules in the skin.
    8·2 answers
  • HELP!!!<br> write the scientific names of these ionic compounds
    5·1 answer
  • The density of lead is 11.4 g/cm3 at 20°C. A chemist has a metallic sample that is either pure lead or mostly lead. If the densi
    8·2 answers
  • Which direction does air circulate into low pressure zones in the northern and southern hemisphere
    12·2 answers
  • A balloon has a volume of 105 Lif the temperature is 20 °C. If the temperature is -55°C,
    9·1 answer
  • What is the wavelength of a photon with a frequency of 6.56 x 10^14 Hz?
    6·1 answer
  • what is the number of the photons of light with a wavelength of a 4000 PM that provide 1 joule of energy​
    15·1 answer
  • KOH + HBr -&gt; KBr +H2O <br> balanced or unbalanced pls help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!