Question

How many liters (L) of a 20% alcohol solution must be mixed with a 20 L of a 90% solution to get a 30% solution?

Answer #1

PLEASE SHOW ALL STEPS.
How many liters of a 70% alcohol solution must be added to 50
liters of a 40% alcohol solution to produce a 50% alcohol
solution?
Find the selling price per pound of a coffee mixture made from
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solution of 80% acid to produce a mixture that is 90 % water? The
amount of pure water is 2 liters. (Type an integer or a
decimal.)

Lynn Pike, a pharmacist, needs 70 liters of a 60%
alcohol solution.she has a 30% alcohol solution and an 80% alcohol
solution available. how many liters of each solution should be
mixed to obtain 70 liters of a 50% alcohol solution?

Translate to a system of equations and solve.
A 40% antifreeze solution is to be mixed with a 70% antifreeze
solution to get 240 liters of a 64% solution. How many liters of
the 40% and how many liters of the 70% solutions will be used?
1) 40% solution_______________ L
2) 70% solution________________ L

1. Isopropyl alcohol is mixed with water to produce a 35.0%
(v/v) alcohol solution. How many milliliters of each component are
present in 745 mL of this solution? (Assume that volumes are
additive.)
1A- _____ mL alcohol
1B-_____ mL water
2. Calculate the volume percent of solute in the following
solutions.
2A- 16.9 mL of methyl alcohol in enough water to give 547 mL of
solution. _____%
2B- 68.1 mL of ethylene glycol in enough water to give 229 mL...

A solution of rubbing alcohol is 79.3 % (v/v) isopropanol in
water. How many milliliters of isopropanol are in a
79.0 mL sample of the rubbing alcohol solution?
How many liters of a 3.90 M K2SO4 solution
are needed to provide 90.8 g of K2SO4 (molar mass 174.01
g/mol)? Recall that M is equivalent to mol/L.

Logan wants to mix a 19% acid solution with a 44% acid solution
to get 14 L of a 38% acid solution. How many liters of the 19%
solution and how many liters of the 44% solution should be mixed?
If necessary, write your answer as a fraction or mixed number in
simplest form.

How many liters of C6H14(l), measured at 20 ∘C, must be burned
to provide enough heat to warm 25.0 m3 of water from 19.8 to 38.5
∘C , assuming that all the heat of combustion is transferred to the
water, which has a specific heat of 4.18 J/(g⋅∘C)? Recall that 1
mL=10−3 L.
A 1.592 g sample of a component of the light petroleum
distillate called naphtha is found to yield4.880 g CO2(g) and 2.330
g H2O(l) on complete combustion....

How many grams of Ca(NO2)2 must be added to 4.0 L solution of
0.1 M HNO2 to get a pH of 3.64?

A chemist wants
to make 24 liters
of a 20.5%
acid
solution. In the
stock room she
finds a 12% acid
solution
and a 32% acid
solution. How many
liters of each
solution
must be mixed to
obtain the desired
solution? Round all
computations to the
nearest thousandth.

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