Answer:
A) increase Ph B) incorporated ions: Na⁺ and ClO⁻
Explanation:
Bleach is the regular name for sodium hypochlorite (NaClO). This salt is basically composed by the cation sodium (Na⁺) and anion hypochlorite (ClO⁻), and when dissolved in water, this salt makes Ph goes above 7, this is, a basic Ph (will be increased) - have in mind that, a Ph below 7 is acid, and a Ph above 7 is basic)
This will occur since, when ClO⁻ is dissolved in water:
ClO⁻ + H2O → HClO + OH⁻ according to this reaction, the hydroxyl anion will increase the Ph of the water
Finally, when dissolving bleach in water, you will be incorporating ions Na⁺ (sodium) and ClO⁻ (hypochlorite)
Answer:
2.73%
Explanation:
Molarity of NaOH = 0.75 M
Density of solution = 1.1 g/mL
Mass percent of NaOH = ?
Solution:
Number of moles of NaOH = 0.75 mol from 0.75 mol/L
Mass of NaOH = number of moles × molar mass
Mass of NaOH = 0.75 mol × 40 g/mol
Mass of NaOH = 30 g
Mass of solution:
d = m/v
1.1 g/ mL = m/ 1000 mL
m = 1100 g
Percentage of NaOH:
% NaOH = mass of solute / mass of solution × 100
% NaOH = 30 g/ 1100 g × 100
% NaOH = 2.73%
The coins in 1991 had more copper in them compared to the coins today. So, that is why it worth 3.3p.
Im going for d i think i took this last year
1) Hydrocarbon: CH3 - CH2 - CH2 - CH2 - CH3
2) Only single bonds => alkane => sufix ane
3) no substitutions
4) 5 carbons = > prefix penta.
Therefore, the name is pentane.
