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Sati [7]
3 years ago
13

One electron has a mass of 1 amu 2 amu 0 amu 3 amu

Chemistry
1 answer:
gladu [14]3 years ago
5 0
One electron has a mass of approximately 1 amu
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What volume, in mL, of concentrated 16 M nitric acid would you need to use in order to prepare 500.0 mL of a 0.250 M HNO3(aq) so
shtirl [24]

Given :

Initial concentration of nitric acid, C_1 = 16\ M.

Final concentration of nitric acid, C_2 =  0.250 \ M.

Volume of HNO_3, V _2= 500\ mL = 0.5\ L .

To Find :

Volume needed( V_1 ).

Solution :

We know,

C_1V_1 =C_2V_2\\\\16 \times V_1 = 0.250 \times  0.5 \\\\V_1 = \dfrac{0.250 \times  0.5}{16}\\\\V_1 = 0.0078125\ L = 7.8125 \ mL

Hence, this is the required solution.

6 0
3 years ago
HELLP ME PLSSS
Dima020 [189]

Answer:

B

Explanation:

conduction is the transfer of heat between objects that touch

8 0
3 years ago
Calculate the pH of the resulting solution if 26.0 mL of 0.260 M HCl(aq) is added to:
enyata [817]
So in your question that ask to calculate the Ph result of the resulting solution if 26 ml of 0.260 M HCI(aq) is added to the following substance. The the result are the following:
A. The result is pH= 14-pOH
B. There are 10ml of 0.26m HCL excees in this reaction so the answer is log(H)+
7 0
4 years ago
3. A leaky faucet drips at the rate of 300 mL per hour. How many liters will drip in a
ki77a [65]

Answer:

Hence , in a century<u> 0.342 liters</u> of the liquid will drip.

Explanation:

The rate of the flow of the liquid droplet is given by:

Rate=\frac{Volume}{time}

Rate=\frac{mL}{hr}

<u>Unit conversion:</u>

We need to change mL/hr into Liter/century

1 L = 1000 mL (given)

1 mL = 0.001 L......(1)

1 century = 100 year

1 year = 365 days

So, 1 century = 100 x 365 days = 36500 days

1 day = 24 hrs

So , 36500 days = 36500 x 24 hr = 876000 hr

Hence ,

1 century = 36500 days = 876000 hr

we are not asked to calculate the answer in days

1 century = 876000 hr

1 hr = 1/ 876000 century

1 hr =1.141\times 10^{-6}.....(2)

From (1) and (2) put the value in the given formula:

This is for 1 mL/hr to 1 L/century

Rate=\frac{mL}{hr}

Rate=\frac{0.001\ L}{1.141\times 10^{-6}century}

Rate=1.141\times 10^{-3}L/century

Now for 300 mL/hr . the rate will be more , multiply the answer by 300

Rate=300\times 1.141\times 10^{-3}L/century

Rate = 0.342 Liters / century

Hence , in a century 0.342 liters of the liquid will drip.

7 0
4 years ago
Read 2 more answers
An electron in an atom is known to be in a state with magnetic quantum number ml=−1
Ulleksa [173]

Explanation:

It is known that the maximum value of ml is equal to the vale of l. But the minimum value of n is as follows.

                    n = l + 1

where,     n = principle quantum number

                l = azimuthal quantum number

Values of n can be 1, 2, 3, 4 and so on. Whereas the values of l can be 0, 1, 2, 3, and so on.

Also, "m" is known as magnetic quantum number whose values can be equal to -l and +l.

So, when n = 1 then l = 0 and m = 0.

When n = 2 then l = 1 and values of m will be equal to -1, 0, +1. As it is given that the magnetic quantum number ml = -1. Hence, it is only possible when n = 2.

Thus, we can conclude that the smallest possible value of the principal quantum number n of the state is 2.

5 0
3 years ago
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