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3 years ago

Gravity increases when:

Chemistry

1 answer:

nata0808 [166]3 years ago

8 0

Answer:

gravity increase when distance decrease,mass increase

gravity decrease vwhen distance decrease,mass decrease

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Consider the motion diagram. It illustrates a car's velocity (V) and acceleration (A). The BEST description of a car’s velocity

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What is emitted from most manufactured building materials and furniture?

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Answer: “Formaldehyde” is emitted from most manufactured building materials and furniture.

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El número de oxidación del N en el NaNO3 es:

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3 years ago

Suppose that you take a sample of 500 g of ocean water and let the water evaporate. The mass of the remaining salts is 17 g. Wha

yanalaym [24]

<u>Answer:</u> The salinity of ocean water is 34 ppt.

<u>Explanation:</u>

Salinity is defined as the number of grams of salts present per kilogram of seawater. It is expressed in parts per thousand.

The formula used to calculate the salinity of ocean water or sea water is:

$\text{ Parts per thousand}=\frac{\text{Mass of salts}}{\text{Mass of sea water}}\times 1000$

We are given:

Mass of salts = 17 g

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Putting values in above equation, we get:

$\text{ Parts per thousand}=\frac{17g}{500g}\times 1000\\\\\text{ Parts per thousand}=34$

Hence, the salinity of ocean water is 34 ppt.

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3 years ago

Calculate the number of mg of Allura Red present in an 10 fluid ounce glass of the beverage you used in this lab. Assume that th

il63 [147K]

Answer : The mass of Allura Red present in an 10 fluid ounce glass of the beverage is, 7.634 mg.

Explanation : Given,

Volume of solution = 10 fl oz = 295.735 mL

Molar mass of Allura Red = 496.42 g/mole

Concentration of Allura Red (Molarity) = 0.000052 M

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

$\text{Molarity}=\frac{\text{Mass of Allura Red}\times 1000}{\text{Molar mass of Allura Red}\times \text{Volume of solution (in mL)}}$

Now put all the given values in this formula, we get:

$0.000052M=\frac{\text{Mass of Allura Red}\times 1000}{496.42g/mole\times 295.735mL}$

$\text{Mass of Allura Red}=0.007634g=7.634mg$

Therefore, the mass of Allura Red present in an 10 fluid ounce glass of the beverage is, 7.634 mg.

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3 years ago