Answer:
True
Explanation:
Molecular mass of :
Molecular mass of Ca + molevular mass of C + molecular mass of O × 3
40g + 12g + 16 × 3g
= 40g + 60 = 100g
Thus its true
1) Divide the no. of atoms by Avogadros's no.
2) You will get no. Of moles . Now multiply the no. Of moles with the molar or molecular mass of Ag
3)The mass of Ag will be found ..
Nitrates and chlorides are highly soluble, whereas sulfates and phosphates are less soluble along with the common ions used in medicine.
<u>Explanation:</u>
Mostly calcium and magnesium salts are utilized in medications. On the basis of the solubility rules, chlorides and nitrates are highly soluble also have few precipitates among the metal salts.
But, sulfates produces a lower solubility salt with calcium, generally in many medications.Additionally phosphate forms the low solubility salts along with Magnesium and calcium that are used in medications.
Imagine we have <span>mass of solvent 1kg (1000g)
According to that: </span>
= 4.8 mole * 98 g/mole = 470g
m(H2SO4) which is =<span>470g
</span><span>m(solution) = m(H2SO4) + m(solvent) = 470 + 1000 = 1470 g
d(solution) = m(solution) / V(solution) =>
=> 1.249 g/mL = 1470 g / V(solution) =></span>
Solid cobalt (iii) oxide react with solid carbon to form solid cobalt and carbon ( iv) oxide gas
word equation is written as follows
cobalt (iii)oxide+carbon ---->cobalt +carbon (IV) oxide
the balanced chemical equation is written as follows
2Co2o3 +3c --->4Co +3 co2