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Makovka662 [10]
3 years ago
13

The atomic mass of H2 SO4

Chemistry
1 answer:
il63 [147K]3 years ago
6 0
98.079 g/mol
Is that what ur asking?
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A student measures the mass of an 8 cm block of brown sugar to be 12.9 g. What is the density of
horrorfan [7]

Answer:

0.0025g/cm³

Explanation:

Given parameters:

Mass of the brown sugar = 12.9g

dimension of the sugar = 8cm

unknown:

density of the sugar = ?

Solution

Density is defined as the mass per unit volume of a substance. The expression is given below:

      Density = \frac{mass}{volume}

We know the mass of the substance but the volume is unknown:

Volume of the brown sugar = l x bx h = 8x8x8 = 512cm³

Density of the brown sugar = \frac{12.9}{512} = 0.0025g/cm³

8 0
3 years ago
How can the speed of solvent molecules be slowed down? A. By increasing the temperature B. By increasing the surface area of the
SVEN [57.7K]

Answer:

Explanation:

If by speed ,you mean the rate at which they collide with each other then yes the answer would be

By decreasing the temperature

Since we already know thattemperature is the average kinetic energy of the molecules and increasing temperature will increase the motion of the solvent molecules and an decrease in temperature will decrease in the motion of solvent molecules

3 0
4 years ago
Which has a greater momentum, a car or a bike moving at the same speed​
blsea [12.9K]

The car has greater momentum because it has more mass than a bike, even if they have the same speed. I hope this helped! :-)

5 0
3 years ago
What is the formula of Iron oxide​
Fed [463]
Fe2O3
That’s the formula for iron oxide
8 0
3 years ago
Read 2 more answers
The enthalpy of formation of xef2(g) is –108 kj mol–1 and the bond dissociation enthalpy of the f–f bond is 155 kj mol–1 . what
S_A_V [24]
Xe +f2 →Xef2
ΔXe = ΣB.P reactants - Σ B.d products
-108k.s/ mol = B. D f₂ - 2 B.D xe-f
-108 k.s/mol =155 k.s/mol - 2B.Dxe-f
263kJ/mol/2 = B. D xe-f
B.D xef = 131.5 kJ/mol
132 kJ/mol
4 0
3 years ago
Read 2 more answers
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