Which is the formula mass of Na₂SO₄? *

1. 119 amu

2. 125 amu

3. 142 amu

4. 174 amu

The amount of stored chemical energy is what determines the temperature of a substance.

If Sulfonamides are toxic to Bacteria by stopping folic acid synthesis, and since folic acid is also very important for humans Does this make Sulfonamides toxic to humans? And why?

How many grams are 3.01 * 1023 molecules of CuSO4?

A 0.02877 g sample of gas occupies 10.0-ml at 289.0 k and 1.10 atm. upon further analysis, the compound is found to be 38.734% c and 61.266% f. what is the molecular formula of the compound? (order: c, x)

Convert 56.78 grams of Ca (OH) _2 to moles

chromium can combine with chlorine to from corneum chloride which equation is a correct representation of this reaction

What is the atomic weight of a hypothetical element consisting of two isotopes, one with mass = 64.23 amu (26.0%), and one with mass = 65.32 amu? (a) 65.3 amu (b) 64.4 amu (c) 64.9 amu (d) 65.0 amu (e) 64.8 amu

Is this base a physical or chemical property?

Classify each of the following aqueous solutions as a nonelectrolyte, weak electrolyte, or strong electrolyte. a) LiClO4 b) HClO c) CH3CH2CH2OH d) HClO3 e) CuSO4 f) C12H22O11

Give examples of temporaty physical change