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mote1985 [20]
2 years ago
11

A closed container has 7.05 ⋅ 1023 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10-24 grams. Which of the following shows

and explains the approximate total mass, in grams, of all the atoms of the gas in the container? 0.87 grams, because (7.05 + 1.67) ⋅ (1023 ⋅ 10-24 ) = 8.72 ⋅ 10-1 1.18 grams, because (7.05 ⋅ 1.67) ⋅ (1023 ⋅ 10-24 ) = 11.7735 ⋅ 10-1 8.72 grams, because (7.05 + 1.67) ⋅ (1023 ⋅ 10-24 ) = 8.72 11.77 grams, because (7.05 ⋅ 1.67) ⋅ (1023 ⋅ 10-24 ) = 11.7735
Mathematics
2 answers:
Gnesinka [82]2 years ago
7 0

Answer:

D

Step-by-step explanation:

Phantasy [73]2 years ago
3 0

Answer:

1.18 grams, because (7.05 ⋅ 1.67) ⋅ (1023 ⋅ 10-24 ) = 11.7735 ⋅ 10-1

Step-by-step explanation:

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Answers:

  • Red = 1/3
  • Yellow = 7/15
  • Blue = 1/5

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Explanation:

Add up all the frequencies in the table to see that there are 120+168+72 = 360 spins total.

  • Of those 360 spins, 120 of them land on red. The probability of landing on red is 120/360 = (120*1)/(120*3) = 1/3
  • Since 168 land on yellow, this means the probability of landing on yellow is 168/360 = (24*7)/(24*15) = 7/15
  • Lastly, we have 72 occurrences of blue out of 360 total spins. The probability of landing on blue is 72/360 = (72*1)/(72*5) = 1/5
4 0
2 years ago
Can someone please HELP ME!!
IRISSAK [1]

Volume of a cone = PI x r^2 x h/3

Volume = PI x 5^2 x 9/3

Volume = 235.62 cubic cm.

Volume of a block of wax = L x W x H

Volume = 2 x 4 x 3 = 24 cubic cm.

Total number of blocks = Volume of cone / volume of blocks:

235.62 / 24 = 9.82

Round up to 10.

They will need 10 blocks.

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6 0
3 years ago
To ensure that she obtained a sufficiently large number of minority respondents in a study on racial attitudes, a researcher div
soldi70 [24.7K]

Answer:

It is stratified random sampling.

Step-by-step explanation:

Stratified random sampling is a method of sampling that involves the division of a population into smaller sub-groups known as <em>strata.</em>

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Answer:

A = 4 cm²

Step-by-step explanation:

The area of a triangle is calculated as

A = \frac{1}{2} bh ( b is the base and h the perpendicular height )

b = AC = 3\sqrt{2} + \sqrt{2} = 4\sqrt{2}

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