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3 years ago

It is given by the formula ph=-log[h+] find the ph of each substance. A)baking soda:[H+]=10^-8 per liter

Mathematics

1 answer:

maw [93]3 years ago

7 0

Answer:

pH = 8

Step-by-step explanation:

Formular is given as;

pH = -log[H+]

A)baking soda:

[H+] = 10^-8

Upon inserting it into the formular;

pH = -log (10^-8)

pH = - ( -8)

pH = 8

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Ramesh buys 10 containers of juice from an online shop and 18 containers of the same juice from another shop.If the capacity of

frutty [35]

Answer:

Rs. 4200

Step-by-step explanation:

If Ramesh buys 10 containers, each for 150, we can add 150 + 150 + 150 + 150 + 150 + 150 + 150 + 150 + 150 + 150 (there's ten 150's).

Or, instead of doing a lot of adding, we can use multiplication (repetitive addition is the same thing as multiplication; but instead of adding over and over again, we multiply by how many "groups" of the number that we have. For example, let's say that our group size is 150. If we buy 10 containers, we have bought 10 x 150 containers.)

So, we can use 10 x 150 for the first ten containers. However, we can solve this problem in a slightly more practical way. We can first add the total amount of containers (the total amount of "groups" of 150), 10 + 18 = 28.

So, to solve this equation, we are finding 28 x 150.

150 x 28 = 4200

(150 = size of "group"/price of container)

(28 = amount of "groups"/containers)

So, the total amount of money spent by Ramesh is Rs. 4200

8 0

1 year ago

Omg pls help ill give you 20 points

ElenaW [278]

Answer:

Step-by-step explanation:

Amount of water in tank 1 = amount of water in tank 2

30t +25 = -20t + 1000

Add 20t to both sides

30t + 20t + 25 = -20t + 20t + 1000

50t + 25 = 1000

Subtract 25 from both sides

50t + 25 - 25 = 1000 - 25

50t = 975

Divide both sides by 50

t = 975/50 = 39/2

$= 19 \frac{1}2}$

t = 19 minutes 30 seconds

After 19 1/2 minutes both tanks will have 610 liters of water

5 0

2 years ago

When no net force is applied to a moving object, it still comes to rest because of its inertia.

mafiozo [28]

Answer:

A true

Step-by-step explanation:

3 0

3 years ago

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What is the value of the expression 1/4 ^-3?

zloy xaker [14]

$(\frac{1}{4})^{-3}= (\frac{4}{1})^3\\\\=(4)^3\\\\=4\times 4\times 4\\\\=16\times 4\\\\=64$

Your final answer is B. 64.

8 0

3 years ago

2/5 times 2/3 (28 points)

Alik [6]

Answer:

4/15

Step-by-step explanation:

4 0

2 years ago

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