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
ASHA 777 [7]
3 years ago
14

30 POINTS!! Will mark brainliest if correct answer and all work is shown! What mass in grams of tin would be required to complet

ely react with 1.30 L of 0.750 M HBr in the following chemical reaction? Sn(s) + 4 HBr(aq) → SnBr₄ (aq) + 2 H₂ (g)
Chemistry
1 answer:
olya-2409 [2.1K]3 years ago
3 0

Answer:

mSn=0.24375*59=14.38125

Explanation:

nHBr=1.3*0.75=0.975

nSn=1/4nHBR=0.975/4=0.24375

mSn=0.24375*59=14.38125

You might be interested in
The Ka of a monoprotic weak acid is 0.00732. What is the percent ionization of a 0.123 M solution of this acid?
MaRussiya [10]

Answer:

21.60% is the percent ionization of a 0.123 M solution of this acid.

Explanation:

The equilibrium reaction for dissociation of weak acidis,

HA\rightleftharpoons A^-+H^+

initially conc.         c                       0         0

At eqm.         c(1-\alpha )                  c\alpha     c\alpha  

Concentration of the weak acid (c) = 0.123 M

Acid dissociation constant = k_a=0.00732

Degree of ionization of weak acid = \alpha

An expression of dissociation constant is given as:

k_a=\frac{(c\alpha)(c\alpha)}{c(1-\alpha )}=\frac{c\times (\alpha )^2}{(1-\alpha )}

0.00732=\frac{0.123 M\times (\alpha )^2}{(1-\alpha )}

\alpha =0.2160

Percent ionization of weak acid:

\% ionization=\frac{c\alpha }{c}\times 100

\frac{0.123 M\times 0.2160}{0.123 M}\times 100=21.60\%

5 0
3 years ago
PLEASE HELP ASAP WITH THESE THREE!
Furkat [3]

Answer:

001: 71.2 g per ML

002: Consider a block of marble that occupies 287 cm3 and has a mass of 869 g.

a. What is its density?

d=m/v=869g/287 cm3=3.03 g/cm3

b. Will it float in:

H2O(l)? Why or why not?

Nope! Density > 1.00 g/mL

Hg(l) (density=13.55 g/mL)? Why or why not?

Yep! Density < 13.55 g/mL

003:  

Use the given functions to set up and simplify  

0.309 cm3

g/cm3=g/cm3

0.309cm3=g/cm3

 

Explanation:

http://childschemistry.weebly.com/uploads/7/8/6/3/78638416/density_key.pdf

Hope this helps I tried my best

5 0
3 years ago
The initial temperature of a reaction is 24.7 °C. The temperature decreases by 3.2 °C. What is the new temperature of the reacti
olya-2409 [2.1K]

Answer:

I think it's 21.5 *C

Explanation:

6 0
2 years ago
Why does Watney get left behind on Mars?
OlgaM077 [116]

Answer:

I think it's because he was presumed dead after a storm, or like a problem with his suit

8 0
3 years ago
Read 2 more answers
Giovanni created this chart to study for an exam. Which best describes how to correct the error in the chart? Remove “plastics”
Vanyuwa [196]

Calcium carbonate when mixed with water result in the formation of Calcium hydroxide which is used as an antacid. The chloride ion also helps in the whitening of teeth thus finding its use as an ingredient in toothpaste.

Iron oxide is dark pigment which is naturally used in makeup.

<span>Therefore the answer to this question is Swap the uses for iron oxide and calcium carbonate. </span>

<span> </span>

5 0
3 years ago
Read 2 more answers
Other questions:
  • What part of the electromagnetic spectrum that is necessary for the sense of sight in humans?
    15·2 answers
  • How many grams of chlorine must be added to a balloon containing 8.00 grams of helium to double its volume?
    14·1 answer
  • 10. Which statement accurately describes the relationship between mass and weight?
    6·1 answer
  • You have made use of the Le Chatelier principle in this lab. Explain how the Le Chatelierprinciple is used to help formation of
    9·1 answer
  • Balance the equation KHCO3+ H3PO4 arrow K2HPO4+H20 C02.
    9·1 answer
  • When water changes into water vapor, this is called_______.
    5·2 answers
  • When choosing a respirator for your job, you must conduct a _____ test.
    5·1 answer
  • How do unbalanced forces cause a change in speed, direction, and position of an object?
    7·2 answers
  • Which combination makes up most of the mass of an atom?
    15·1 answer
  • ¿por que biomasa es una energía limpia y renovable, si al final los productos como biodiesel e los pellets se queman y esa combu
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!