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jeka94
3 years ago
14

How many moles are in 100.56g HCI?

Chemistry
1 answer:
DedPeter [7]3 years ago
5 0

Answer:

2.7475 mol≈2.75 mol

Explanation:

M(HCl) = 1.0 + 35.5 = 36.6 g/mol

100.56 g HCl *(1 mol HCl/36.6 g HCl)≈ 2.7475 mol≈2.75 mol

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Your friend challenged you to a race you know in order to beat him you must run 15 meters within 20 seconds in the northern dire
Marat540 [252]

Answer:

.75 meter north

Explanation:

v = d/t

v = 15/20

v = .75

7 0
3 years ago
In a solution with a pH of 4, the [OH-] is:<br>1x 10-10<br>1x 10-4<br>10<br>- 1x 10-8<br>​
e-lub [12.9K]

Answer:

1 x 10^-4

Explanation:

Use the equation pH = -log[OH-}

Rearranging it [OH-] = 10^-pH

Plugging in we get [OH-] = 1 x 10^-4

3 0
3 years ago
How many grams of MgCl2 (molar mass = 95.20 g/mol) will be formed from 25.6 mL of a 0.100 M HCL solution reacting with excess ma
lorasvet [3.4K]
The balanced equation for the above reaction is as follows;
Mg + 2HCl ---> MgCl₂ + H₂
stoichiometry of HCl to MgCl₂ is 2:1
we have been told that Mg is in excess therefore HCl is the limiting reactant 
number of HCl moles reacted - 0.100 mol/L x 0.0256 L = 0.00256 mol
according to molar ratio, number of MgCl₂ moles formed - 0.00256/2 
Therefore number of MgCl₂ moles formed - 0.00128 mol
mass of MgCl formed - 0.00128 mol x 95.20 g/mol = 0.122 g
3 0
3 years ago
Read 2 more answers
Is ok2 gas a element compound or homogeneous or heterogeneous mixture?
ivolga24 [154]
I'm guessing you mean O2 gas? This is an elemental compound. It can't be a mixture because it is composed of only 1 element. Hope I helped!
4 0
3 years ago
If this container of liquid water was frozen into ice and then, thawed back into liquid what would the volume be?
Dmitry_Shevchenko [17]

Answer:

35

Explanation:

because it's is still the same amount even if you freeze it

6 0
3 years ago
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