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Rus_ich [418]
3 years ago
7

Which value indicate the strongest base? 1. pH of 8 2. pH of 5 3. pH of 12

Chemistry
1 answer:
uranmaximum [27]3 years ago
6 0
Hello there! 

On a pH scale, strong bases usually are ranged at 12-14, so your answer is 3. pH of 12. Hope I helped! 

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The volume (in L) that would be occupied by 5.00 mols of 02 at STP is
crimeas [40]

Answer : The volume of oxygen at STP is 112.0665 L

Solution : Given,

The number of moles of O_2 = 5 moles

At STP, the temperature is 273 K and pressure is 1 atm.

Using ideal gas law equation :

PV=nRT

where,

P = pressure of gas

V = volume of gas

n = the number of moles

T = temperature of gas

R = gas constant = 0.0821 L atm/mole K   (Given)

By rearranging the above ideal gas law equation, we get

V=\frac{nRT}{P}

Now put all the given values in this expression, we get the value of volume.

V=\frac{(5moles)\times (0.0821Latm/moleK)\times (273K)}{1atm}=112.0665L

Therefore, the volume of oxygen at STP is 112.0665 L

3 0
3 years ago
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8 0
2 years ago
What is pH a measure of?
s344n2d4d5 [400]
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4 0
3 years ago
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Which of the following is true concerning the reaction below?
levacccp [35]
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5 0
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Given that you added about 5ug of purified acid phosphatase to tube A, calculate the amount of acid phosphatase that was present
Reil [10]

Hey there!:

Amount of purified acid phosphatase added to tube A = 5 ug ( micrograms )

Amount of acid phosphatase present in 400 ug of wheat germ extract  in tube B :

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x = 200 / 100

x =  2 ug


The amount of acid phosphatase present in 400 ug of the  wheat germ in tube B is 2 ug


Hope that helps!

6 0
3 years ago
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