Which of the following is a unit for mass in the International System of Units?

1 answer:

6 0

Remember this King Henry Died Unfortunatly Drinking Chocolate Milk look this up online. The answer is Kilo. #TeamAlvaxic

You might be interested in

an aqueous solution has a mass of 490 grams containing 8.5×5103 gram of calcium ions. the concentration of calcium ions is in th

Alex777 [14]

There are several various of expressing concentration. For instance, mass percent, volume percent, Molarity, Normality, Molality, etc.

In present case, weight of solute and solvent are given, so it will be convenient to express concentration in terms of mass percent.

Given: weight of solute (Ca2+) = 8500 g
weight of solvent (water) = 490 g.
Therefore, mass of solution = 8500 + 490 = 8990 g

Now, mass percent = $\frac{\tect{Weight of solute}}{\text{Weight of solution}} X 100$
= $\frac{\tect{8500}}{\text{8990}} X 100$
= 94.55 %

Answer: Concentration of calcium ions is in this solution is 94.55 % (w/W)

8 0

3 years ago

Which of the following is the major argument against the use of nuclear power to generate electricity?

svet-max [94.6K]

The mechanics of a power plant that generally uses nuclear energy in order to generate electricity lies in the principle of nuclear fission between radioactive atoms. In addition, among its major arguments on why it is still a matter of ethical issue is because of the intensive maintenance it requires for the disposal of its radioactive wastes.

8 0

4 years ago

Read 2 more answers

the empirical formula for a compound used as a green paint pigment is C2H3As3Cu2O8. The molar mass of its molecular formula was

melisa1 [442]

Answer:

Molecular formula = C₄H₆As₆Cu₄O₁₆

Explanation:

Given data:

Empirical formula = C₂H₃As₃Cu₂O₈

Molar mass of compound = 1013 g/mol

Molecular formula = ?

Solution:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass of C₂H₃As₃Cu₂O₈ is 506.897 g/mol

by putting values.

n = 1013 / 506.897

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₂H₃As₃Cu₂O₈)

Molecular formula = C₄H₆As₆Cu₄O₁₆

3 0

3 years ago

Magnesium burns with a very bright light. When the flame goes out, a White powder is left behind. what is the word equation for

melisa1 [442]

When magnesium is burned, it reacts with oxygen in air not with the fire. The fire is the energy needed for the reaction to happen. Magnesium reacts with oxygen forming magnesium oxide. The light emitted from the reaction is because the reaction produced a lot of heat.

6 0

3 years ago

The element in period 4 and group 8

Leno4ka [110]

I am pretty sure that the element is Iron (Fe)

3 0

3 years ago