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max2010maxim [7]
3 years ago
6

What is the formula of calculating density?

Chemistry
1 answer:
Salsk061 [2.6K]3 years ago
7 0

density = mass/volume

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How many salt and water would you use to prepare 10% salt solution?
tatuchka [14]

Answer:

We can make 10 percent solution by volume or by mass. A 10% of NaCl solution by mass has ten grams of sodium chloride dissolved in 100 ml of solution. Weigh 10g of sodium chloride. Pour it into a graduated cylinder or volumetric flask containing about 80ml of water.

Explanation:

have a good day

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3 years ago
Given the reaction: A + B <--> C + D
Lady_Fox [76]

Answer:

A.) 4.0

Explanation:

The general equilibrium expression looks like this:

K = \frac{[C]^{c} [D]^{d} }{[A]^{a} [B]^{b} }

In this expression,

-----> K = equilibrium constant

-----> uppercase letters = molarity

-----> lowercase letters = balanced equation coefficients

In this case, the molarity's do not need to be raised to any numbers because the coefficients in the balanced equation are all 1. You can find the constant by plugging the given molarities into the equation and simplifying.

K = \frac{[C]^{c} [D]^{d} }{[A]^{a} [B]^{b} }                                       <----- Equilibrium expression

K = \frac{[2 M] [2 M]}{[1 M] [1 M] }                                     <----- Insert molarities

K = \frac{4}{1  }                                                <----- Multiply

K = 4                                                <----- Divide

6 0
2 years ago
Which ion does not have a noble gas configuration in its ground state?
goldfiish [28.3K]
I think the answer would be Ga3+
3 0
3 years ago
What is the meaning of resolution in science?
horrorfan [7]

Answer:

Resolution is the ability to distinguish two objects from each other. Light microscopy has limits to both its resolution and its magnification.

7 0
3 years ago
5. Water is known to have a composition which is 88.8% oxygen by mass. If you had a
Fantom [35]
Oxygen : 367*0.888=325.896
Hydrogen : 367 - 367*0.888 = 41.104g
4 0
3 years ago
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