All categories

3 years ago

How many milliliters of liquid does the larger graduated cylinder contain?

Chemistry

1 answer:

valina [46]3 years ago

7 0

10000. millimeters. is. correct

You might be interested in

Atypicalaspirintabletcontains325mgofacetylsalicylic acid (HC9H7O4). Calculate the pH of a solution that is prepared by dissolvin

Sergio [31]

Answer:

$\boxed{2.65}$

Explanation:

1. Mass of acetylsalicylic acid (ASA)

$m = \text{2 tablets} \times \dfrac{\text{325 mg}}{\text{1 tablet}} = \text{750 mg}$

2. Moles of ASA

HC₉H₇O₄ =180.16 g/mol

$n = \text{750 mg} \times \dfrac{\text{1 mmol}}{\text{180.16 mg }} = \text{4.163 mmol}$

3. Concentration of ASA

$c = \dfrac{\text{4.163 mmol}}{\text{237 mL}} = \text{0.01757 mol/L}$

4. Set up an ICE table

$\begin{array}{ccccccc}\text{HA} & + & \text{H$_{2}$O}& \, \rightleftharpoons \, &\text{H$_{3}$O$^{+}$} & + &\text{A}^{-}\\0.01757 & & & &0 & & 0 \\-x & & & &+x & & +x \\0.01757-x & & & &x & & x \\\end{array}\\$

5. Solve for x

$K_{\text{a}} = \dfrac{\text{[H}_{3}\text{O}^{+}]\text{A}^{-}]} {\text{[HA]}} = 3.33 \times 10^{-4}\\\\\dfrac{x^{2}}{0.01757 - x} = 3.33 \times 10^{-4}\\\\\textbf{Check that }\mathbf{x \ll 0.01757}\\\\\dfrac{ 0.01757 }{3.33 \times 10^{-4}} = 53 < 400\\\\\text{The ratio is less than 400. We must solve a quadratic equation.}\\\\x^{2} = 3.33 \times 10^{-4}(0.01757 - x) \\\\x^{2} = 5.851 \times 10^{-6} - 3.33 \times 10^{-4}x\\\\x^{2} + 3.33 \times 10^{-4}x - 5.851 \times 10^{-6} = 0$

6. Solve the quadratic equation.

$a = 1; b = 3.33 \times 10^{-4}; c = -5.851 \times 10^{-6}$

$x = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\text{Substituting values into the formula, we get}\\x = 0.002258\qquad x = -0.002591\\\text{We reject the negative value, so}\\x = 0.002258$

7. Calculate the pH

$\rm [H_{3}O^{+}]= x \, mol \cdot L^{-1} = 0.002258 \, mol \cdot L^{-1}\\\text{pH} = -\log{\rm[H_{3}O^{+}]} = -\log{0.002258} = \mathbf{2.65}\\\text{The pH of the solution is } \boxed{\textbf{2.65}}$

4 0

2 years ago

how well can you apply the charles law to the sample of gas that experiences changes in pressure and volume ? assume that pressu

I am Lyosha [343]

We can apply Charles' law to find the change in the volume of the gas since the pressure in this chamber is kept constant.

Explanation:

Charles' law states that at constant pressure, the change in temperature in a chamber will lead to change in its volume, which is to say that temperature and volume changes are directly proportional.

The volume change here says that the gas expands as the temperature rises, give that the moles of the gas are constant.

Hence, the equation could be, $V_{1} T_{1} =V_{2} T_{2}$ So, Charles' law can be directly applied to the situation to find or analyse the changing the variables such as volume and temperature

4 0

3 years ago

What is one thing about science you love?

anyanavicka [17]

Answer:

its very diverse and has a lot of streams

4 0

2 years ago

Read 2 more answers

Need help with 4 through 7

Lilit [14]

Answer:

idk just want the points

Explanation:

7 0

2 years ago

Could anyone help? will vote brainliest

Free_Kalibri [48]

Isotope is two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.

Carbon would have 6 protons, 6 Neutrons and 6 electrons.

Sulfur would have 16 protons, 16 neutrons and 16 electrons.

I hope that was a little helpful!

8 0

2 years ago