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3 years ago

13

Assume the average apple has a mass of 167 grams. How many apples are in a bag of apples that weighs 2000 grams? Enter your numb

er answer belowand round to the nearest whole number

1 answer:

forsale [732]3 years ago

4 0

Answer:

12

Explanation:

167x=2000

x=11.976

rounds to 12

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Consider the following equivalent expressions: 38÷1312 and 38?ab What are the values of a and b? Enter the value of a followed b

Anna007 [38]

Answer:

a = 12

b = 13

Explanation:

Consider the following equivalent expressions: 38÷1312 and 38?ab What are the values of a and b? Enter the value of a followed by the value of b, separated by a comma.

The solution is attached.

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3 years ago

Determine the mass of 5.2 x 10 power of 21 molecules of propanol C3H7OH(l), on grams.

Alja [10]

$n(\text{C}_3\text{H}_7\text{OH}) = N(\text{C}_3\text{H}_7\text{OH}) / N_A\\ \phantom{n(\text{C}_3\text{H}_7\text{OH})} = 5.2 \times 10^{21} / (6.02 \times 10^{23})\\ \phantom{n(\text{C}_3\text{H}_7\text{OH})} = 8.6 \times 10^{-3} \; \text{mol}$

where $N_A = 6.02 \times 10^{23}\; \text{mol}^{-1}$ the Avogadro's constant that relates the number of particles to their number, in the unit moles $\text{mol}$ .

The molar mass of propanol- mass per mole propanol- can be directly deduced from its molecular formula with reference to a modern periodic table.

$M(\text{C}_3\text{H}_7\text{OH}) = \underbrace{3 \times 12.01}_{\text{carbon}} + \underbrace{8 \times 1.008}_{\text{hydrogen}} + \underbrace{1\times 16.00}_{\text{oxygen}} = 60.09 \; \text{g} \cdot \text{mol}^{-1}$

$8.6 \times 10^{-3} \; \text{mol}$ of propanol molecules would thus have a mass of $8.6 \times 10^{-3} \; \text{mol} \times 60.09 \; \text{g} \cdot \text{mol}^{-1} = 0.52 \; \text{g}$

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3 years ago

fill in the blank: 1.)the amount of space that matter fills is its.................. 2.)a state of matter with a definite volume

marshall27 [118]

1) mass

2) gas

3) liquid

4) temperature

5) pressure

8 0

3 years ago

Read 2 more answers

If there are no changes in the oxidation state of the reactants or products of a particular reaction, that reaction is not a red

dmitriy555 [2]

Yes, that is true. in order for it to be a redox reaction, both oxidation and reduction must be occurring.

3 0

3 years ago

What are all the intermolecular forces present in a sample of BrF?

yuradex [85]

Answer:

dipole-dipole

Explanation:

Intermolecular forces exists between the molecules of a substance in a particular state of matter.

The type of intermolecular forces present in a substance is determined by the electronegativity difference between the atoms that compose the substance.

There is a non zero electronegativity difference between Br and F hence the molecule is polar and the intermolecular forces between the molecules of BrF are dipole-dipole forces.

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3 years ago