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Ainat [17]
3 years ago
10

What is a hypothesis?

Chemistry
1 answer:
gladu [14]3 years ago
3 0

Answer: a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Explanation: definition

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How much water should be added to 4.3 moles of LiBr to prepare a 2.05 m solution?
arsen [322]

Answer:

2.1 kg of water

Explanation:

Step 1: Given data

  • Moles of lithium bromide (solute): 4.3 moles
  • Molality of the solution (m): 2.05 m (2.05 mol/kg)
  • Mass of water (solvent): ?

Step 2: Calculate the mass of water required

Molality is equal to the moles of solute divided by the kilograms of solvent.

m = moles of solute/kilograms of solvent

kilograms of solvent = moles of solute/m

kilograms of solvent = 4.3 mol /(2.05 mol/kg) = 2.1 kg

8 0
3 years ago
Given an ideal gas has a volume of
fomenos
229.98 degree kelvin.
7 0
3 years ago
Which student was practicing poor laboratory safety?
insens350 [35]

Answer herbert

Explanation:

cause he did not do any of the safety precautions and he was prob not listening to the teacher  

8 0
4 years ago
Write the following numbers in standard notation. Use a terminal decimal point when needed.
ololo11 [35]

The standard notation of 1.0070x10⁴ is 10070

To express enormous figures which are in standard notation like 1,300,000 or exceedingly minuscule quantities like 0.0000000000045, scientists use scientific notation. Scientific notation, also referred to as exponential form, is one of the earliest mathematical techniques. It is well regarded by practitioners. People use scientific notation to handle situations where numbers are too large or too small to be calculated easily. Scientists, engineers, and mathematicians all use this technique. where as standard notation is way writing numbers in normal decimal form. The scientific method id most convenient denoting numbers as the numbers will be either too big or too small.

To learn more about standard notation:

brainly.com/question/10253124

#SPJ4

5 0
2 years ago
Compared to a glass of water at room temperature, which statement
oksano4ka [1.4K]
Hot water molecules go to wherever pockets of cold are, which would be the room

cold water molecules are moving slowly n stay together
7 0
3 years ago
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