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 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

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

Chemistry HW need help, how to do these caculation and answer these questions?

Newly produced beer must be checked to see if it meets predetermined standards. The percentage of alcohol is determined by distillation. A set of measurements is listed forone batch.Sample Volume of beer (L) Ethanol distilled (mL)1               8.00                         3922              10.00                          5003              9.00                            4594             9.00                           444 What is the average percentage by volume of ethanol for this batch?

Give correct answer to all parts?