3 years ago

How can you move a object without making contact?

Chemistry

1 answer:

nadya68 [22]3 years ago

6 0

Answer:

The Force

Explanation:

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2.41 x 1024 formula units of NaCl

IgorLugansk [536]

So the number of moles = 0.06 moles of 4X12-2 moles.

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3 years ago

A process in which one or more substances change to make one or more new substances is called a

svetlana [45]

The answer to your question is: Chemical Reaction.

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4 years ago

An experiment requires 0.52 M NH3(aq). The stockroom manager estimates that 15 L of the base is needed. What volume of 15 M NH3(

Bingel [31]

Answer: 0.52 L of 15 M $NH_3(aq)$ will be used to prepare this amount of 0.52 M base.

Explanation:

But on diluting the number of moles remain same and thus we can use molarity equation.

$C_1V_1(stock)=C_2V_2$ (to be prepared)

where,

$C_1$ =concentration of stock solution = 15 M

$V_1$ = volume of stock solution = ?

$C_2$ = concentration of solution to be prepared = 0.52 M

$V_2$ = volume of solution to be prepared = 15 L

$15\times V_1=0.52\times 15$

$V_1=0.52L$

Thus 0.52 L of 15 M $NH_3(aq)$ will be used to prepare this amount of 0.52 M base

8 0

3 years ago

Which is an overall second-order reaction?<br> R=k[A]2 [b]2<br> R=k[A][B]<br> R=k<br> R=k[B]

masha68 [24]

R=K[A]2 [b]2 HOPE THIS HELPS

4 0

3 years ago

Lemon juice has a pH of about 2.0, compared with a pH of about 1.0 for stomach acid. Therefore, the concentration of H+ in stoma

LuckyWell [14K]

Answer:

The concentration of H⁺ in stomach acid is approximately ten times greater than that of lemon juice.

Explanation:

The H⁺ concentration of a solution is exponentially related to its pH value:

$\rm [H^{+}] = 10^{-pH}$ .

For lemon juice:

$\rm [H^{+}] = 10^{-2.0} = 0.01\; M$ .

For stomach acid:

$\rm [H^{+}] = 10^{-1.0} = 0.1\; M$ .

Thus, the concentration of H⁺ in stomach acid is approximately ten times greater than that of lemon juice.

5 0

3 years ago

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