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3 years ago

‼️ i really need help. if anyone can do 10 pages of a grade 11 chemistry packet (multiple choice) let me know. i can pay money

Chemistry

1 answer:

Alja [10]3 years ago

6 0

Answer:

mmmmmmmmmmmmmmmmmm

Explanation:

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As the amount of charge on two objects increases, the strength of the electrical force between the objects

Aleks [24]

Answer:

Increase is the answer

Explanation:

Increase is the answer hopes this helps you

6 0

3 years ago

Read 2 more answers

8. 53.4 mL of a 1.50 M solution of NaCl is on hand, but you need some 0.800 M

bulgar [2K]

8. 100.13 ml
9. 75 ml
10. 1066.7 ml, hope that's help

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3 years ago

1. john needs to create a buffered solution at a ph of 3.5 for his biomedical laboratory

Lunna [17]

Answer:

Use a ratio of 0.44 mol lactate to 1 mol of lactic acid

Explanation:

John could prepare a lactate buffer.

He can use the Henderson-Hasselbalch equation to find the acid/base ratio for the buffer.

$\text{pH} = \text{pK}_{\text{a}} + \log\dfrac{\text{[A$^{-}$]}}{\text{[HA]}}\\\\3.5 = 3.86 + \log\dfrac{\text{[A$^{-}$]}}{\text{[HA]}}\\\\\log\dfrac{\text{[A$^{-}$]}}{\text{[HA]}} = 3.5 - 3.86 = -0.36\\\\\dfrac{\text{[A$^{-}$]}}{\text{[HA]}} = 10^{-0.36} = \mathbf{0.44}$

He should use a ratio of 0.44 mol lactate to 1 mol of lactic acid.

For example, he could mix equal volumes of 0.044 mol·L⁻¹ lactate and 0.1 mol·L⁻¹ lactic acid.

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3 years ago

1. The calendar below shows a sample month of the year. Suppose that you see a full moon on the first day of this month.

Anuta_ua [19.1K]

Answer:The 1st Quarter Moon is a primary Moon phase when we can see exactly half of the Moon's surface lit up. ... The First Quarter Moon rises around midday and is visible in the day sky. ... when the Moon has reached the first quarter of its orbit around Earth, hence the name. ... Full Moon Names · Taking pictures of the Moon.

Explanation:

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3 years ago

Under certain conditions, the substance hydrobromic acid can be broken down to form hydrogen and bromine.

Lerok [7]

Answer:

1. 24.7g of Br2

2. 19.9g of HCl

Explanation:Please see attachment for explanation

7 0

4 years ago