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
ivanzaharov [21]
2 years ago
10

Convert 7.50 mol of Li₂O to grams

Chemistry
1 answer:
Natali5045456 [20]2 years ago
4 0

Answer:

223.5 g

Explanation:

The formula between the number of moles, mass and Mr can be used to convert moles to grams.

<em>Number of moles = mass ÷ Mr</em>

So, mass = number of moles × Mr

  Mr of Li₂O = (6.9 × 2) + 16 = 29.8

∴ Mass = 7.5 × 29.8 = <u>223.5 g</u>

You might be interested in
Help me with this please ​
Gala2k [10]

Answer:

Gap 1, S-Phase, Gap 2, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis

Hope this helps.

8 0
3 years ago
As part of a science experiment, Jose did a test for starch on a slice of apple and a slice of potato. The yellow-orange iodine
rosijanka [135]
I am pretty sure the answer is D
4 0
3 years ago
Describe the location of the positive charge of the atom in j. j. thomson’s plum pudding model.
katovenus [111]
Thompson proposed a model (the plum pudding model) whereby the negatively charged corpuscles were distributed in a uniform sea of positive charge. In other words the positive charge was like the pudding and the negative charge were like raisins on the pudding.
3 0
4 years ago
Read 2 more answers
How many liters of phosphine are produced when 34 L of hydrogen reacts with an excess of phosphorus under STP?
Keith_Richards [23]

Answer:

22.67 L of PH₃

Explanation:

The balanced equation is:

P_4 (s) + 6H_2(g) \to 4PH_3(g)

From the equation:

34 L \times \dfrac{1 \ mol \ of H_2 }{22.4 \ L \ H_2} \times \dfrac{4 \ mol \ of \ PH_3}{6 \ mol \ H_2} \times \dfrac{22.4 \ L \ PH_3}{1 \ mol \ PH_3}

= 22.67 L of PH₃

5 0
3 years ago
What volume of 2.5% (m/v) koh can be prepared from 125 ml of a 5.0% (m/v) koh solution?
disa [49]
     the  volume  of   2.5% m/v    koh  which  can  prepared  from  125  ml  of  a  5%  koh  solution  is  calculated  using  the  following  formula

 m1v1=  m2 v2

M1= 5/100=  0.05
v1=   125
m2=2.5/100=0.025
V2=?
v2=  m1v1/m2

=0.05  x125  /0.025=250  ml
8 0
3 years ago
Read 2 more answers
Other questions:
  • How does thermal energy transfer when a room is heated by a furnace?
    14·2 answers
  • Classify each material as a polymer or a composite. plywood ,plastic, concrete ,fiber glass ,paper ,nylon
    6·2 answers
  • I need numbers 8 and 9. Thank you.
    13·1 answer
  • 1. What does the -ite or -ate ending in a polyatomic ion mean?
    15·1 answer
  • Please help i'm being timed
    9·1 answer
  • What forces hold network solids together?
    13·1 answer
  • Which enzymes has the most significant effect on the chemical digestion of kool aid drink?
    10·1 answer
  • Which equation is an expression of the rate law?
    12·1 answer
  • What is the atomic structure for antimony
    13·1 answer
  • If a sample of a gas occupies 5.22 L at 235 oC, what will its volume be at 75 oC if the pressure remains the same?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!