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3 years ago

A six-sided number cube labeled 1 through 6 is rolled 600 times. An odd number is rolled

Chemistry

2 answers:

Svet_ta [14]3 years ago

8 0

Answer:

${\huge{\pink{\underline{\underline{Question}}}}}$

A six-sided number cube labeled 1 through 6 is rolled 600 times. An odd number is rolled

272 times. Compare the experimental probability of rolling an odd number with the relative

frequency of rolling an odd number and select one of the statements below that best

describes the situation.

${\huge{\pink{\underline{\underline{Answer}}}}}$

A.The experimental probability and relative frequency are the same.

zalisa [80]3 years ago

5 0

Answer:

Explanation:

idk but i do know its right

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A solution of H 2 SO 4 ( aq ) with a molal concentration of 1.66 m has a density of 1.104 g / mL . What is the molar concentrati

uysha [10]

Answer:

1.58 M

Explanation:

$H_2SO_4$ is 1.66 m concentration.

Which means that 1.66 moles of $H_2SO_4$ are present in 1 kg of the solvent, water.

Mass of water = 1 kg = 1000 g

Moles of $H_2SO_4$ = 1.66 moles

Molar mass of $H_2SO_4$ = 98.079 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$1.66\ mole= \frac{Mass}{98.079\ g/mol}$

$Mass_{H_2SO_4}= 162.81114\ g$

Total mass = 1000 g + 162.81114 g = 1162.81114 g

Density = 1.104 g/mL

Volume of the solution = Mass / Density = 1162.81114 / 1.104 mL = 1053.27 mL = 1.05327 L

Considering:-

<u>Molarity = moles/ Volume of solution = 1.66 / 1.05327 M = 1.58 M </u>

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3 years ago

Satellite photos of Neptune and Uranus show that both planets have a bluish color. Which gas in their atmospheres gives them thi

Shtirlitz [24]

Answer:

Methane

Explanation:

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3 years ago

In a laboratory experiment you are given 46.1 grams of MgSO4 and asked to make a 1.20 M solution. The volume of your solution wi

Darina [25.2K]

Answer:

0.319 L

Explanation:

M(MgSO4) = 120 g/mol

46.1 g * 1 mol/120 g = 0.384 mol MgSO4

0.384 mol * 1 L/1.20 mol = 0.319 L

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3 years ago

A student burns 1.50 mol C3H8 according to the following reaction:

Gemiola [76]

Answer:

I think the answer is A. 1.98 x 10^2 g

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4 years ago

_ S8 +_02 +_ SO3

BigorU [14]

My educated guess should be the 3rd one

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3 years ago