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creativ13 [48]
3 years ago
11

the titration of a 20.0 mL sample of an H2SO4 solution of unknown concentration requires 22.87mL of a 0.200M NaOH solution to re

ach the equivalence point. What is the concentration of the unknown acid solution?
Chemistry
1 answer:
nataly862011 [7]3 years ago
7 0
M =n/v
M= .23/.02
M=11.5
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1.2 g of sucrose is added to water with the final volume of 75 ml. What is the concentration of sucrose in %w/v?
Firlakuza [10]

Answer:

16 g/L

Explanation:

Given that:-

Mass of sucrose added = 1.2 g

Volume of water = 75 mL = 0.075 L ( 1mL = 0.001 L )

%w/v is defined as the mass of the solution in 1 L of the solution.

So,

\%\ w/v=\frac{Mass_{solute}}{Volume_{Solution}}

\%\ w/v=\frac{1.2\ g}{0.075\ L}=16\ g/L

8 0
4 years ago
An organic solvent has a density of 1.31 g/mL. What volume is occupied by 57.5 g of the liquid?
Burka [1]

Answer:

<h3>The answer is 43.89 mL</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question

mass = 57.5 g

density = 1.31 g/mL

We have

volume =  \frac{57.5}{1.31}  \\  = 43.89312977...

We have the final answer as

<h3>43.89 mL</h3>

Hope this helps you

4 0
3 years ago
1. The calendar below shows a sample month of the year. Suppose that you see a full moon on the first day of this month.
Anuta_ua [19.1K]

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Explanation:

6 0
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Elements bond when they share or transfer their outer shell electrons which are called valence electrons
rusak2 [61]

Answer:

True

Explanation:

3 0
3 years ago
how do I do this I’m confused
Naily [24]

by using pro.gram..

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4 0
3 years ago
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