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sertanlavr [38]
3 years ago
13

PLEASE HELP ME a) b) c) or d)?

Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
5 0

Answer:

D / 15.0 g

Explanation:

3 % volume thus shows that there are 3 g of an solute in every 100mL of solutions

.. there will be 3 × 5000÷ 100 of H2O2 in a 500 mL bottle

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25. In a titration 17ml of 0.2M NaOH was used to neutralize 10ml of acetic acid (CH3 COOH) What is the molarity of the acetic ac
melisa1 [442]
The  molarity  of  acetic  acid  is  calculated  as  follows

find  the  number  of moles  of NaOH  =  molarity  x  volume
=   17x0.2  =   3.4  moles


write  the  equation  for  reaction
  CH3COOH  +  NaOH  =  CH3COONa  +H2O

since  ratio  is be  of  CH3COOH  to  NaOH  is   1:1  the  moles  of CH3COOH   is  therefore =  3.4  moles

therefore  the  molarity  = moles/volume
=  3.4  /10  =  0.34 M
6 0
4 years ago
Which contains particles having the highest average kinetic energy?
IRISSAK [1]

Answer:

A SHOULD BE THE ANSWER I THINK

4 0
3 years ago
A solution is prepared by mixing 525 mL of ethanol with 597 mL of water. The molarity of ethanol in the resulting solution is 8.
Alenkinab [10]

Answer:

\Delta V = 234.736\,mL

Explanation:

The quantity of moles of ethanol in the solution is:

n_{C_{2}H_{5}OH} = \left(\frac{597\,mL}{1000\,mL} \right)\cdot \left(8.35\,\frac{mol}{L} \right)

n_{C_{2}H_{5}OH} = 4.985\,mol

The mass and volume of ethanol in the solution are, respectively:

m_{C_{2}H_{5}OH} = (4.985\,mol)\cdot \left(46.07\,\frac{g}{mol} \right)

m_{C_{2}H_{5}OH} = 229.658\,g

V_{C_{2}H_{5}OH} = \frac{229.658\,g}{0.7893\,\frac{g}{mL} }

V_{C_{2}H_{5}OH} = 290.964\,mL

The difference between the total volume of water and ethanol mixed to prepare the solution and the actual volume of solution is:

\Delta V = (525\,mL+597\,mL) - (597\,mL + 290.964\,mL)

\Delta V = 234.736\,mL

8 0
3 years ago
At a pressure 41 kPa, the gas in a cylinder has a volume of 18 liters. Assuming temperature remains the same, if the volume of t
seraphim [82]

Your looking at 8 liters , cupcake


8 0
3 years ago
A trend in the periodic table means?
Delvig [45]

Answer:

A periodic trend is a regular variation the properties of an element with increasing atomic number.

Explanation:

4 0
3 years ago
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