1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ne4ueva [31]
2 years ago
9

A sample of 54.78 liters of H2 would have a mass of

Chemistry
1 answer:
KatRina [158]2 years ago
7 0

Answer:

A-6.90 grams

Explanation:

that is the answer

You might be interested in
hat is the pH of a solution with a hydroxide ion concentration of 10–6M? A. pH = 12 B. pH = 8 C. pH = 6 D. pH = 7
WARRIOR [948]
C=10⁻⁶ mol/L

pH=14-pOH

pOH=-lg[OH⁻]

pH=14+lg10⁻⁶=14-6=8

B. pH = 8

8 0
3 years ago
When a certain amount of MgF2 is added to water, the freezing point lowers by 3.5° C. What was the molality of the
Leni [432]

The molality of the solution is obtained as 0.63 m.

<h3>What is the freezing point?</h3>

The freezing point is the temperature at which the liquid is converted into solid.

We know that;

ΔT = 3.5° C

K = 1.86° C/m

i = 3

m = ?

Thus;

ΔT = K m i

m = ΔT/K i

m = 3.5° C/ 1.86° C/m * 3

m = 0.63 m

Learn more about freezing point:brainly.com/question/3121416

#SPJ1

6 0
2 years ago
811.68 J of energy are used on a 95g chunk of unknown metal. Calculate the resulting temperature change if the specific heat of
Ivan

Answer:

16 °C

Explanation:

Step 1: Given data

  • Provided heat (Q): 811.68 J
  • Mass of the metal (m): 95 g
  • Specific heat capacity of the metal (c): 0.534 J/g.°C

Step 2: Calculate the temperature change (ΔT) experienced by the metal

We will use the following expression.

Q = c × m × ΔT

ΔT = Q/c × m

ΔT = 811.68 J/(0.534 J/g.°C) × 95 g = 16 °C

6 0
3 years ago
What is the chemical formula for decomposition?
shutvik [7]

Answer: AB A + B

Explanation:

6 0
3 years ago
2 point
Luden [163]

Answer:

21

Explanation:

7 0
3 years ago
Other questions:
  • Calcium hydroxide reacts with carbon dioxide to form calcium carbonate (balanced equation given below). if you start with 155 ml
    5·1 answer
  • For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction 2 NO ( g
    5·1 answer
  • HELP WITH SCIENCE ASAP!
    6·1 answer
  • Determine the concentration of H+ ions in an aqueous solution where [OH-] =2.25 × 10^-4 M. I have 29 minutes I beg u guys pls hu
    5·1 answer
  • When carbon is oxidized in a small amount of oxygen, the principle product formed is carbon monoxide (co). when the oxidation oc
    13·1 answer
  • The activation energy for the isomerization ol cyclopropane to propene is 274 kJ/mol. By what factor does the rate of this react
    6·2 answers
  • Given 6 moles of CuCl2, how many moles of AlCl, were made? SHOW the math below​
    14·1 answer
  • What is the volume of 2.1 moles of chlorine gas (Cl2) at standard temperature and pressure (STP)?
    9·1 answer
  • . We measure the absorbance of a protein solution with the concentration 0.04 mM, which absorbs at 595nm. The cuvette has a widt
    9·1 answer
  • When the boat is placed on the scale, how does its weight compare to the weight of the water it displaced?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!