Deck 9 (161 - 180) Flashcards
- Write the formula for cadmium perchlorate
Cd(ClO4)2
- The polysaccharide that stores energy in animals is called ?
glycogen
- Acetic acid is found in:
a. antacids
b. the stomach
c. vinegar
d. oranges
c. vinegar
- Fructose is a(n):
a. aldose
b. ketose
c. pentose
d. heptose
ketose
- PIC
- Solid, liquid and gas are:
a. physical properties
b. elements
c. compounds
d. the three common states of matter on earth
d. the three common states of matter on earth
- What is the total number of electrons needed to fill the fourth main energy level?
32
- What is the molar concentration of a solution that contains 0.202 mol KCl in 7.98 L of solution ?
Mm(KCl) = 74.55 g.mol-1
a. 0.0132 mol.dm-3
b. 0.0253 mol.dm-3
c. 0.459 mol.dm-3
d. 1.36 mol.dm-3
b. 0.0253 mol.dm-3
- Maltose is:
a. cane sugar
b. malt sugar
c. milk sugar
d. grape sugar
malt sugar
- Which of the following is a Bronsted-Lowry base ?
a. HCl
b. HCO3-
c. H3O+
d. H3PO4
HCO3-
- How many ml of 60% acetic acid with density p = 1.0629 g.cm-3 do you need to prepare 250 ml 0.02 mol.dm-3 solution ?
Mm(CH3COOH) = 60 g.mol-1
0.47 ml
- Give the name to:
H3C-CH2-CH2-CH2-COO-CH2-CH2-CH3
propyl pentanoate
- Which of the solutions is the most acidic ?
a. pH = 13
b. pOH = 12
c. pH = 3
d. pOH =4
pOH = 12
- Anhydrous does mean …
without water
- Sucrose is made up of …
D-fructose and D-glucose
- Is sodium hydroxide an acid or a base?
base
- What type of organic molecule consists of long chain of amino acids ?
proteins
- How many grams of water can be prepared from 8g of hydrogen at standard conditions?
Mm(H2O) = 18 g.mol-1
Mm(H2) = 2 g.mol-1
2 H2(g) + O2(g) -> 2 H2O
a. 18
b. 8
c. 72
d. 2
72
- Sucrose is not:
a. cane sugar
b. beet sugar
c. milk sugar
d. table sugar
milk sugar
- Identify the group in which all elements have the valence shell configuration ns2:
a. group IA
b. group IIA
c. group IB
d. group IIB
group IIA
