What is the mass of 6.9 moles of nitrous acid (HNO2)?

3.2 × 10² g

Explanation:

Step 1: Given data

Moles of nitrous acid: 6.9 mol

Step 2: Calculate the molar mass of nitrous acid

The molar mass of a compound is equal to the sum of the molar masses of the elements that form it times their atomicities.

M(HNO₂) = M(H) × 1 + M(N) × 1 + M(O) × 2

M(HNO₂) = 1.01 g/mol × 1 + 14.01 g/mol × 1 + 16.00 g/mol × 2

M(HNO₂) = 47.02 g/mol

Step 3: Calculate the mass corresponding to 6.9 moles of nitrous acid

6.9 mol × 47.02 g/mol = 3.2 × 10² g

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i