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
gayaneshka [121]
3 years ago
14

A student needs to determine the volume occupied by a gas in a 125 mL flask using the experimental setup described in the proced

ure. The student measures the volume of the flask to be 159 mL to the top of the flask. The student measures the volume of the flask with a stopper in it to be 142 mL. The student performs the experiment by reacting the strip of magnesium with 5 mL of HCl solution. What is the volume of the flask occupied by the hydrogen gas?
Chemistry
1 answer:
Yuki888 [10]3 years ago
6 0

Answer:

It would appear that the H2 gas is collected in a stoppered flask. Therefore, the volume of the gas is 138 mL minus the 5 mL occupied by the HCl, or 133 mL.

Explanation:

You might be interested in
How to answer this ?
nadezda [96]
You multiply (4×10)by*
6 0
2 years ago
Can someone help this is a final exam its really important
Burka [1]
Do you still need help?!?!
5 0
2 years ago
Consider the following balanced reaction. How many grams of water are required to form 75.9 g of HNO3? Assume that there is exce
adoni [48]

Answer:

The answer is "10.84 g".

Explanation:

The formula for calculating the number for moles:

\text{Number of moles }= \frac{\ Mass}{ \ molar \ mass }

In the given acid nitric:

Owing to the nitric acid mass = 75.9 g

Nitric acid molar weight= 63\  \frac{g}{mol}

If they put values above the formula, they receive:

\text{moles in nitric acid} = \frac{75.9}{63}

                               =1.204 \ mol

In the given chemical equation:

3 NO_2 \ (g) + H_2O \ (l) \longroghtarrow 2 HNO_3 \ (aq) + NO\ (g)

In this reaction, 2 mols of nitric acid are produced by 1 mole of water.

So, 1.204 moles of nitric acid will be produced:

= \frac{1}{2} \times 1.204

=0.602\ \ \text{mol of water}.

We are now using Equation 1 in determining the quantity of water:

Water moles = 0.602\  mol

Water weight molar = 18.02 \ \frac{g}{mol}

\to 0.602 = \frac{\text{mass of mols}}{ 18.02}\\\\\to \text{mass of mols} = 0.602 \times 18.02\\\\

                         =10.84 \ g

8 0
3 years ago
The missing components in the table to the right are indicated with orange letters. use the periodic table and the tools bar to
Gnesinka [82]

Answer:

A: 349.0

B: 3.16

C: 1.31

D: 0.93

Explanation:

8 0
2 years ago
What will happen to the chemical equilibrium if MgCl2 is added?
Verizon [17]
The chemical equilibrium will be unaffected 
6 0
3 years ago
Other questions:
  • How many moles are in 2.0 grams of FeO
    14·2 answers
  • Force develops when two solutions each different concentration solutes separated semipermeable membrane
    11·1 answer
  • Besides water, what is the product of a Neutalization Reaction between HBr and CsOH?
    14·2 answers
  • What are examples of a Theory ?
    11·1 answer
  • The energy and state changes that occur when freezing rain falls and solidfies on a wire fence
    8·2 answers
  • Which compound is classified as a hydrocarbon? A) butanal B) butyne C) 2-butanol D) 2-butanone
    10·1 answer
  • Bowling with a volleyball instead of a bowling ball. Will this make it easier or harder to knock over pins?
    10·1 answer
  • What is the daughter nuclide when 0-15 experiences positron emission?
    7·1 answer
  • How much heat is absorbed when 15.0 g of liquid water is
    9·1 answer
  • An ideal gas exerts a pressure of 3atm in a 3L container. The container is at a temperature of 298K.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!