A student is conducting an experiment to determine how far a ball will roll down a ramp based on the angle of incline.

1 answer:

6 0

Since the student is trying to determine the amount of time needed for the ball to roll down the incline, based on the angle of incline.

The independent variable: the amount or extent of the angle, the angle of inclination of the ramp, as this somewhat dictates the amount of time needed for the ball to roll down the ramp.

The dependent variable: the barnacle you are measuring, in this case, the time for the ball to roll down the ramp at different inclination angles.

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How does weathering, erosion and deposition shape the Earth and contribute to the rock cycle

Fed [463]

Answer:

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Explanation:

5 0

3 years ago

How many molecules of sugar are there in 1 can of soda?

Korvikt [17]

Answer:

$5.8\cdot 10^{22}$

Explanation:

Since no information was provided about the can of soda, let's take an example of 1 can of 12 fl oz (368 g) Coca-Cola.

The nutrition facts state that it contains 33 g of sugar. In order to calculate the number of molecules, we firstly need to know the molecular formula of sugar. Sugar can be represented by $C_{12}H_{22}O_{11}$ .

Our first step is to find the molar mass of sugar:

$M_{C_{12}H_{22}O_{11}} = 342.3 g/mol$

Secondly, dividing mass of sugar, $m = 33 g$ , by the molar mass will yield the number of moles of sugar:

$n_{C_{12}H_{22}O_{11}}=\frac{m}{M}$

Finally, multiplying moles by the Avogadro's constant will yield the number of molecules:

$N_{C_{12}H_{22}O_{11}}=n_{C_{12}H_{22}O_{11}}\cdot N_A =\frac{m}{M} \cdot N_A = \frac{33 g}{342.3 g/mol} \cdot 6.022 \cdot 10^{23} mol^{-1} = 5.8\cdot 10^{22}$