A chemist needs to know the mass of a sample of Na, SO, to 4 significant digits. She puts the sample on a digital scale. This is what the scale shows: 096.1 164g If this measurement is precise enough for the chemist, round it to 4 significant digits. Otherwise, press the "No solution" button. No solution

A student is making a solution of sugar in water.  If the student uses 0.10 moles of sugar and enough water to make 935.74 milliliters of solution, what is the molarity of the student's sugar solution?  Round your answer to the nearest 0.01 and include units properly abbreviated, but NOT substance!

A lab prepared a solution of sulfuric acid with a volume of 5.0x10-4 m3. The solution is further concentrated to the half of the original volume, which is used to neutralize a potassium hydroxide solution. The potassium hydroxide solution has a volume of 30 mL, contains 30 g water, and has a density of 1.0141 g/cm3. What is the molarity of sulfuric acid in the concentrated solution? (The final answer keeps 4 digits after decimal. Please do NOT use scientific notation.)

Suppose 4.47 g of barium acetate is dissolved in 350. mL of a 69.0 m M aqueous solution of ammonium sulfate. Calculate the final molarity of barium cation in the solution, You can assume the volume of the solution doesn't change when the barium acetate is dissolved in it. Round your answer to 3 significant digits. | M

Suppose 2.61g of zinc chloride is dissolved in 150.mL of a 70.0mM aqueous solution of potassium carbonate. Calculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the zinc chloride is dissolved in it. Round your answer to 3 significant digits.

Calculate the molarity of each of the following solutions. Part 1 of 3 (a) 18.0 g of ethanol (C₂H5OH) in 5.90 × 10² mL of solution. Round your answer to 3 significant digits. ₁ M Part 2 of 3 (b) 10.6 g of sucrose (C12H22011) in 76.0 mL of solution. Round your answer to 3 significant digits. Part 3 of 3 M 0 M x10 X (c) 7.45 g of sodium chloride (NaCl) in 87.4 mL of solution. Round your answer to 3 significant digits. 0 10 X G

What is the volume in liters that is needed to create a 2.0 M solution with 4.9 moles of Zn(NO3)2? Round your answer to 1 decimal.

What is the molarity of a solution containing 36.3 g of NaOH in 1.40 L? The molar mass of NaOH is 40.0 g/mol. Suppose you add 600 mL of water to the NaOH solution in the question above. What is the new molarity of the dilute NaOH solution?

A student measures the initial volume of NaOH to be 0.56 mL.  The final volume is measured to be 21.60 mL.  If the concentration of NaOH used is 0.0877 M, how many moles of NaOH were used? Report your answer with four decimals. Enter numbers only; do not enter units.

To what volume (in mL) should 0.67 mL of an 5.21 M acetic acid solution be diluted in order to obtain a final solution that is 1.77 M? Calculate to 2 decimal places Read about significant figures and rounding in the Helpful Resources page! Do not include units when reporting your answer Use standard notation or scientific notation as accepted by blackboard e.g. 0.001 or 1E-3, not 1 x 10^-3