This molecule has –OH groups at both ends. The –OH will be able to interact positively without water molecules by forming hydrogen bonds with the H ends of water molecules. This is because the –OH ‘s are polar making the molecule also generally polar - which would otherwise be nonpolar without them. Water being a polar solvent it dissolves polar substances.

8 0

3 years ago

Non-red hair is dominant. And Red hair is recessive. What are Josh's genotype and phenotype?

Ira Lisetskai [31]

Phenotype = Non-red

Genotype = depends on what genes you are using

8 0

3 years ago

The model below represents a nuclear reaction. Atom 1 is present before the reaction and Atom 2 and Atom 3 are produced after th

NemiM [27]

Option C. Does not produce energy in the sun. Because energy in the sun is produced by fusion; this is the combination of two atoms, and that is the opposite to what the model shows.

3 0

3 years ago

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Calculate the number of milliliters of 0.587 M NaOH required to precipitate all of the Ni2+ ions in 163 mL of 0.445 M NiBr2 solu

Brums [2.3K]

Answer:

We need 247 mL of NaOH

Explanation:

Step 1: Data given

Molarity of NaOH = 0.587 M

Volume of 0.445 M NiBr2 solution = 163 mL = 0.163 L

Step 2: The balanced equation

NiBr2(aq) + 2NaOH(aq) Ni(OH)2(s) + 2NaBr(aq)

Step 3: Calculate moles of NiBr2

Moles NiBR2 = Molarity NiBR2 * volume

Moles NiBR2 = 0.445 M * 0.163 L

Moles NiBR2 = 0.0725 moles

Step 3: Calculate moles of NaOH

For 1 mol NiBr2 consumed, we need 2 moles NaOH

For 0.0725 moles NiBR2, we need 2* 0.0725 = 0.145 moles NaOH

Step 4: Calculate volume of NaOH

Volume = moles NaOH / Molarity NaOH

Volume = 0.145 moles / 0.587 M

volume = 0.247L = 247 mL

We need 247 mL of NaOH

3 0

3 years ago