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3 years ago

How many moles are in 59.75 grams of water?

Mathematics

1 answer:

Orlov [11]3 years ago

7 0

Answer:

n = 3.3167 moles

Step-by-step explanation:

The number of mole in water

H2O

n = m/Mm

n = number of mole

m = number of mass

Mm = number of molar mass

Given :

Mass = 59.75g

Mm of H2O

H - 1.00784

O - 15.999

H = 2 * 1.00784 = 2.01568

O = 15.999

Mm of H2O = 15.999 + 2.01568

= 18.01468

insert the values into the formula

n = m/Mm

n = 59.75/18.01468

= 3.3167moles

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Ví dụ 1.5. Một người đi mua hàng 3 lần. Xác suất lần đầu mua được hàng tốt là 0,7.

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a) 0.50575,

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Step-by-step explanation:

Example 1.5. A person goes shopping 3 times. The probability of buying a good product for the first time is 0.7.

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Using the midpoint formula

midpoint = [ $\frac{1}{2}$ (x $x_{1}$ + $x_{2}$ , $\frac{1}{2}$ ( $y_{1}$ + $y_{2}$

where ( $x_{1}$ , $y_{1}$ =(3,8) and ( $x_{2}$ , $y_{2}$ =(-7,2)

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Put the numbers in ascending order by least to greatest, then count the occurrences of each number to quickly determine the mode.
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