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trasher [3.6K]
1 year ago
5

Jeffe is explaining dimensional analysis to a friend. he says that dimensional analysis can be used to convert between units. wh

at is needed for this conversion? an understanding of significant figures in metric units an understanding of the difference between accuracy and precision of units an equality that tells how much of one unit is equal to another unit an algebra book that explains how linear equations can be set up with units
Chemistry
1 answer:
GaryK [48]1 year ago
6 0

The correct answer is equality which tells how much of one unit is equal to another unit.

By determining the base quantities and units of measure for each physical quantity and tracking these dimensions as computations or comparisons are made, the dimensional analysis examines the relationships between various physical quantities. Due to the regular 10-base in all units, converting between dimensional units within the metric or SI system is frequently simpler than it is in other systems. Algebraic conversions are frequently done using dimensional analysis, most specifically the factor-label approach also called the unit-factor method. Even if they are initially expressed in different units of measure, such as yards and meters, commensurable physical quantities are the same kind, have the same dimension, and may be compared directly to one another.

Learn more about the dimensional analysis here:-

brainly.com/question/13078117

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How many milliliters of a 0.275 M NaOH solution is required to react with 0.450 L of CO2 gas
padilas [110]

Volume of NaOH required to react = 145.5 ml

<h3>Further explanation</h3>

Reaction

CO₂(g) + 2 NaOH(aq)  ⇒Na₂CO₃(aq) + H₂O(l)

The volume of CO₂ : 0.45 L

mol CO₂ at STP (O C, 1 atm) ⇒ at STP 1 mol gas 22.4 L :

\tt mol~CO_2=\dfrac{0.45}{22.4}=0.02

From the equation, the mol ratio of CO₂ : NaOH = 1 : 2, so mol NaOH :

\tt mol~NaOH=\dfrac{2}{1}\times 0.02=0.04

Then volume of NaOH :

\tt V=\dfrac{n}{M}\\\\V=\dfrac{0.04}{0.275}\\\\V=0.1455~L\rightarrow 145.5~mL

5 0
3 years ago
The two oxygen atoms forming molecules of oxygen gas that you breath are joined by a polar covalent bond. Explain why this state
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3 years ago
En el enlace covalente entre azufre y carbono (6 y 4 electrones en su ultima capa respectivamente) la molécula tendrá ?
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Answer:

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C. Melting ice. 
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Condensation of water occurs from a gas to a liquid state, which takes energy out of the system(water) and gives it to the surroundings(air around it). Freezing water is the same as condensation except for the state change. Deposition is simply gas to a solid instantaneously so you can again see it as with the other two examples. 

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3 years ago
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