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
vredina [299]
3 years ago
7

An evaluation of R was performed, following the procedure described in this module. The barometric pressure was 736 torr, the te

mperature was 295k and volume of hydrogen gas collected was 35.6 mL. The calculated value of R was 82.1 mL atm K-1 mol-1.
1) How many grams of Magnesium metal were used?

2) If the vapor pressure of water had not been taken into account, what would have been the calculated value of R?

3) If the springe volume had been incorrectly read, giving a calculated system volume of 25.6 mL, what would have been the percent error in the calculated value of R?

Chemistry
1 answer:
Misha Larkins [42]3 years ago
6 0

mass of mg = 0.035g

calculated R value is less

percentage error = 71.91%


You might be interested in
Please help me with number 4 and 5 on my study guide
Shtirlitz [24]

Answer:

help with problem 4

Explanation:

4. protons are equal to atomic numbers. neutrons are atomic mass minus atomic number. electrons are equal to protons.

5. I don't know, sorry.

5 0
2 years ago
2+
Reika [66]

Answer:

[ar]5s1401

Explanation:

nanbsbshdhshhshshshhd

8 0
3 years ago
What causes the Moon to revolve around Earth?
Mama L [17]

Answer:

A, Earth Gravity

Explanation:

7 0
2 years ago
Read 2 more answers
In the electron cloud model, the electron cloud is denser in some locations than in others.
Sonbull [250]
<span>In the electron cloud model, the denser areas represent that there is a great probability that a good number of electrons are ganged up or crowded in that area. The electrons affect the density of some parts of the electron cloud when they condense in those locations.</span>
8 0
3 years ago
Need help read the comment below.
BartSMP [9]

Answer:

Protective fruit

Explanation:

Angiosperm seeds grow in the middle of flower's ovaries and are covered by a defensive fruit.

8 0
3 years ago
Other questions:
  • i want to make a presentation on mixtures Clearly describes the process through illustrations or other visuals. Describe termino
    6·1 answer
  • What is the electron configuration of an element with atomic number 15? A. 1s2 2s2 2p6 B. 1s2 2s2 2p6 3s2 3p5 C. 1s2 2s2 2p6 3s2
    6·2 answers
  • A horizontal tube carrying hot water has a surface temperature of 355.4 K and an outside diameter
    12·1 answer
  • Which one of these equations is balanced? a. Zn + 2hcl --&gt; ZnCl2 + H2 b. S8 + 24F2 --&gt; 8SF6 
    10·1 answer
  • Define what is halflife​
    14·1 answer
  • A chloride of this element is 67.2% chlorine by mass. In a 100 g sample how many moles of chlorine are there? (This info will be
    9·1 answer
  • True or false A compound can consist of one kind of element?
    9·1 answer
  • The equilibrium constant Kc for the reaction below is 0.00584 at a certain temperature. Br2(g) ⇌ 2Br(g) If the initial concentra
    6·1 answer
  • Short note on dung fertilization ​
    8·2 answers
  • How much time is needed to form most fossils? Help please!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!