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3 years ago

In converting between units, it is never necessary to use more than one conversion factor. A. True B. False

Chemistry

2 answers:

lakkis [162]3 years ago

6 0

False, in converting between units, it is never necessary to use more than one conversion factor.

Radda [10]3 years ago

5 0

It is $\boxed{{\text{true}}}$ that it is never necessary to use more than one conversion factor.

Further Explanation:

The measurements are compared with each other with the use of standards called units. These units are divided into two categories which are basic and derived units.

The units that do not require any other unit for expressing themselves and are used to define other units are known as basic units. Mass, time, length and temperature are some basic units. But some units require basic units to describe them and these are known as derived units. Density, volume, and area are some of the derived units.

Following are 7 basic quantities along with their units in the SI system:

1. Length: Meter (m)

2. Mass: Kilogram (kg)

3. Time: Second (s)

4. Thermodynamic temperature: Kelvin (K)

5. Electric current: Ampere (A)

6. Amount of substance: Mole (mol)

7. Luminous intensity: Candela (Cd)

One unit can be converted into another one with the help of a proper conversion factor. Conversion factors are the ratios that are written in the form of fractions and multiplication of which with the original unit gives the desired units.

Consider the conversion of 500 g of any substance into kg. The conversion factor for this conversion is,

$1{\text{ g}} = {10^{ - 3}}{\text{ kg}}$

Therefore the desired conversion is done as follows:

$\begin{aligned}{\text{Mass of object}} &= \left( {500{\text{ g}}} \right)\left( {\frac{{{{10}^{ - 3}}{\text{ kg}}}}{{1{\text{ g}}}}} \right)\\&= 0.5{\text{ kg}}\\\end{aligned}$

This is a single-step conversion. So it is never necessary to use more than one conversion factor.

Learn more:

What is the mass of 1 mole of viruses: brainly.com/question/8353774
Determine the moles of water produced: brainly.com/question/1405182

Answer details:

Grade: Senior School

Chapter: Basic concepts of chemistry

Subject: Chemistry

Keywords: unit, basic, fundamental, mass, time, thermodynamic temperature, luminous intensity, amount of substance, electric current, conversion factor.

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2 years ago

Which pair of samples contains the same number of oxygen atoms in each compound?0.20 mol Ba(OH)2 and 0.20 mol H2SO40.20 mol Br2O

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Answer:

0.20 mol Br2O and 0.20 mol HBrO have the same number of oxygen atoms

Explanation:

0.20 mol Ba(OH)2 and 0.20 mol H2SO4

In Ba(OH)2 there are 2 moles of O atoms in every mol of Ba(OH)2.

Number of O atoms in 0.20 moles Ba(OH)2 = 2*0.20 = 0.40 moles O atom

In H2SO4 there are 4 moles of O atoms for every mol of H2SO4.

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In Br2O there is 1 mol of O atoms in every mol Br2O

Number of O atoms in 0.20 moles Br2O = 0.20*1 = 0.20 moles O atom

In HBrO there is 1 mol of O atom in every mol HBrO

Number of O atoms in 0.20 moles HBrO = 0.20 *1 = 0.20 moles O atom

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In BaO there is 1 mol of O atoms in every mol BaO

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