2.5 M HCl solution, but what is found in the stock room is 6.0 M HCl. How much of 1. You were unable to copy your mom's specialty "hinilabos na talangka (salted
crablets) and your guests found it too salty. You prepared it by adding 10% salt
add if your mom said that she prepared her specialty by mixing 20 mL of 0.5% salt
(NaCl) instead?
2. In the laboratory, most reagents are concentrated. Suppose you need 100ml of a
the 6M HCI will you use to prepare 100ml of 2.5 M HCI.?
3. A solution of 96% of H2 SO4 by weight has a density of 1.84g/ml at 25*C.
Find
a. mole fraction
b. molality
c. molarity

Complete the sentence. the lower the hydrogen ion concentration, the the ph. higher lower closer to 7 closer to 0

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.