The rule of significant figures when multiplying numbers is that the number of significant figures of the product must be that of the least number of significant figures of the factors.
The factors are 2.2 which has 2 significant figures and 5.00 which has 3 significant figures. Therefore, the product must only have 2 significant figures.
The answer is B. 11 mm2
Answer:
4.49 mmHg
Explanation:
Formula for osmotic pressure → π = M . R . T
M → molarity
Let's determine the moles of pepsin (mass / molar mass)
0.5 g / 35000 g/mol = 1.43 mol ×10⁻⁵ moles
These moles are in 60 mL of an aqueous solution. Let's determine M (mo/L)
1.43 mol ×10⁻⁵ mol / 0.060 L = 2.38×10⁻⁴ M
Noticed we changed the volume from mL to L → 60 mL . 1L/1000mL
T → T°K = T°C + 273 → 30°C +273 = 303K
Now we can put data on the formula:
π = 2.38×10⁻⁴ mol/L . 0.082 L.atm/mol.K . 303K
π = 5.91×10⁻³ atm
Let's convert the atm to mmHg
5.91×10⁻³ atm . 760mmHg / 1atm = 4.49 mmHg
Answer: TWO WITH LIGHT PINK PRECIPITATE IS
BaCI2 and AI2(SO4)3 AND BaCI2 and NaOH
Ferric hydroxide and aluminium hydroxide are the precipitate u can form by any major reaction.
Explanation: Chemical Reaction: BaCl2 and AgNO3
Ba+2= Barium= Metal
Cl-1= Chlorine = Non-metal
Ag+1 = Silver= Transition Metal
NO3 - = Nitrate= Polyatomic Ion
BaCl2 = Barium chloride
Ag(NO3) = Silver (I) Nitrate
there are five Taste bud present tongue they are -
- SWEET
- SALT
- SOUR
- BITTER
- UMAMI
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out of the four type of papillie present on tongue the fungiform circumvallate and folite papillie contain numerous small taste but few such type of Taste but also occur in the mucous membranes of soft palate tonsils and epiglottis all of these days but received taste is normally
each Taste bud is an oval structures formed due to modification of epithelial cells which are situated erect and vertically on the surface long sensory cells and supporting cells are found in this bird is sensory cell is spindle shaped in which a sensory here is found at its free in the century fibre of the facial and vagus cranial nerves are wrapped around the basal and of the gustatory cells each test but open on the epithelial surface through minute taste pore
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