Answer:
100 Times more Acidic
Explanation:
The pH scale is logarithmic in every 10. So, from 4 to 5 is 10 times less acidic. From 5 to 6 is another 10 times less acidic. So in total, it is 100 times less acidic.
Answer:
0.092M
Explanation:
Molarity of glucose solution = number of moles ÷ volume
According to this question, 12.5g of glucose (C6H12O6) is dissolved in enough water to make 750mL of solution.
Molar mass of glucose (C6H12O6) = 12(6) + 1(12) + 16(6)
= 72 + 12 + 96
= 180g/mol
mole = mass/molar mass
mole = 12.5/180
mole = 0.069mol
Volume of solution = 750mL = 750/1000 = 0.750L
Hence, molarity = n/V
Molarity = 0.069 ÷ 0.750
Molarity = 0.092M
Talc is the softest known mineral which is why it <span>has a Mohs hardness of 1. The Mohs Hardness Scale is the most popular way of measuring and testing the hardness of a mineral. The Mohs hardness ranges from 1 (softest) to 10 (hardest). The hardest mineral with a Mohs hardness of 10 is diamond.
Talc is a clay mineral composed of magnesium silicates commonly used in making powder, paint, cosmetics, and many other products.</span>
A chemical reaction
has an increase in entropy and a decrease in enthalpy. The chemical reaction is
spontaneous. A chemical reaction is spontaneous if it has an entropy greater
than zero and an enthalpy less than 0
