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stepan [7]
3 years ago
14

100!!!!! Points!!!!! hel-p!!!!!

Chemistry
2 answers:
stepan [7]3 years ago
7 0
4.8 is the answer to the question
77julia77 [94]3 years ago
6 0
The correct answer would be 4.8 mph
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A solution with a molarity of 0.1850 contains 19.30 grams of BaCl2. What is the volume of the solution
svetlana [45]

Answer:

Volume in L = 0.50 L

Explanation:

Given data:

Molarity of solution = 0.1850 M

Mass of BaCl₂ = 19.30 g

Volume of solution = ?

Solution:

First of all we will calculate the number of moles of solute:

Number of moles = mass/molar mass

Molar mass of BaCl₂ = 208.23 g/mol

Number of moles = 19.30 g / 208.23 g/mol

Number of moles = 0.093 mol

Volume of solution:

Molarity = number of moles of solute / volume of solution in L

0.1850 M = 0.093 mol / Volume in L

Volume in L = 0.093 mol / 0.1850 M  (M= mol/L)

Volume in L = 0.50 L

4 0
3 years ago
A sample of argon gas at 55°C is under 845 mm Hg pressure. What will the new temperature be if the pressure is raised to 1050 mm
Maurinko [17]

Answer:

The final temperature at 1050 mmHg is 134.57 ^{\circ}C or 407.57 Kelvin.

Explanation:

Initial temperature = T = 55^{\circ}C = 328 K

Initial pressure = P = 845 mmHg

Assuming final  to be temperature to be T' Kelvin

Final Pressure = P' = 1050 mmHg  

The final temperature is obtained by following relation at constant volume

\displaystyle \frac{P}{P'}=\displaystyle \frac{T}{T'} \\ \displaystyle \frac{845 \textrm{ mmHg}}{1050 \textrm{ mmHg}} = \displaystyle \frac{328 \textrm{ K}}{T'} \\T' = 407.57 \textrm{ Kelvin}

The final temperature is 407.57 K

7 0
3 years ago
A few drops of food coloring are put into two containers of water. Observations are shown in the table. Which statement best exp
Svet_ta [14]

Answer:

C

Explanation:

Increasing temp causes increased molecule movment in sample 2

6 0
2 years ago
Which of the following is true regarding atomic radius?
Ymorist [56]

attachment/photo please

5 0
3 years ago
What problems do flooding and extreme weather cause?
mafiozo [28]

Answer:

Explanation:

Sometimes weather is extreme, causing destruction and death. Too much rain can cause flooding. Too much hot weather for long periods of time without any rain can cause drought. Huge storms with strong winds, such as hurricanes and tornadoes, can do a great amount of damage to buildings and crops.

<em>hope this helps you~</em>

4 0
3 years ago
Read 2 more answers
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