Need to convert grams to moles before calculating molarity 13. 98 grams of sodium hydroxide in 2.2 liters of water. (sodium hydroxide NaOH) 14. 1.2 grams of hydrochloric acid in 25 mL of water. (hydrochloric acid (HCI)

A laboratory technician purchased 250. mL of 15.4 mol/L nitric acid. She uses this concentrated solution to prepare a 1.00 mol/L nitric acid solution. How many litres of dilute nitric acid can she prepare from the concentrated nitric acid solution she purchased?

NHẠNO3 MgSO4 [1] Mass of salt (g) 1.968 1.981 [2] Volume of DI water (mL) 50.0 50.0 0.039 0.0396 Mass of DI water (g) [3] Temperature of DI water (°C) 22.5 22.5 [4] Temperature of mixture after dissolution (°C) 19.5 27.1 3 4.6 Temperature difference (°C) [5] Total mass in reaction (g) [6] Enthalpy of solution AHsolution (cal/mol)

A standard crank ice cream maker uses a mixture of ice water and salt to cool ice cream mix to the point of freezing. If ice cream freezes at 27 degrees Fahrenheit, what is the minimum concentration of salt needed to make ice cream?

Е. NaCN Br Acetone

I need help calculating the moles of acid and basebised and also the molarity of the base solution oles RECORD ALL DATA IN INK using the correct number of significant figures and correct units. SHOW COMPLETE "SET-UPS" (and the rounding off) for all calculations for Part 3 on the bottom of this page or on a separate sheet. 3. Standardization of the NaOH Solution: Titration No. Acid buret, Final reading Initial reading Volume of acid used Moles of acid used Base buret, Final reading Initial reading Volume of base used Moles of base used Molarity of base solution Set-ups: 1 2 3 24ml 36. 24ml 12- 12 m 12ml Average Molarity of the NaOH solution Average Deviation 13 25.5 13 13 12.5ml 12 mil. 31.5 4 5 6

please help me find the mmol for this one.  Name Molecular Weight  Amount Used  mmol Equivalents  Density  Acetonitrile 41.04 3mL     .786g/mL

A oxygen with one single bond and three lone pairs is a neutral oxygen an oxonium ion with formal charge -1 an oxyanion ion with formal charge -1 an oxyanion with formal charge +1 an oxonium ion with formal charge +1

Fill in all these boxes with correct units. dont fg to put units for each # put down

In distillation, the composition of the volatile component is governed by which law? * Your answer