subject

Chemistry, 16.06.2021 17:30 kamryn69

Câu 2: Một hỗn hợp gồm Al và Cu có khối lượng 15g khi cho tác dụng với 219g dung dịch HCl thì thu 6,72 lít khí hiđro thóat ra ở đktc. a) Tính % khối lượng mỗi kim loại trong hỗn hợp.
b) Tính khối lượng của muối thu được sau phản ứng.
c) Tính nồng độ % của dung dịch HCl đã dùng.
d) Tính nồng độ % của muối trong dung dịch sau phản ứng.

ansver

Answers: 3

Show answers

Another question on Chemistry

question

Chemistry, 21.06.2019 18:30

Two things that biomedical has invented or innovated

Answers: 1

question

Chemistry, 21.06.2019 19:00

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Answers: 3

question

Chemistry, 22.06.2019 16:10

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

Answers: 2

question

Chemistry, 23.06.2019 00:30

How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw

Answers: 2

You know the right answer?

Câu 2: Một hỗn hợp gồm Al và Cu có khối lượng 15g khi cho tác dụng với 219g dung dịch HCl thì thu 6,...

Questions

question

Business, 21.04.2020 18:06

Last year, Arbor Corporation reported the following: Balance Sheet Total Assets $ 1,280,000; Total Liabilities 820,000; Total Shareholders' Equity $ 4...

question

Mathematics, 21.04.2020 18:06

Checkout time at a supermarket is monitored using a mean and a range chart. Six samples of n = 20 observations have been obtained and the sample means...

question

Mathematics, 21.04.2020 18:06

According to the annual Summer Vacation Survey conducted by Myvesta, a nonprofit consumer education organization, the average summer vacation costs $2...

question

Mathematics, 21.04.2020 18:06

Point P partitions directed line segment AB in a ratio of ¾. Given point P(6, -3) and point A(-4, 8), find the coordinates of point B. Poi...

question

History, 21.04.2020 18:06

A. What's Constitutional? Arguing Your Case. Imagine you're a lawyer in charge of arguing that a particular situation violated someone's constit...

question

Health, 21.04.2020 18:06

Which of the following is NOT a common sign and symptom of a swallowed poison? O nausea O uncontrolled shaking O dizziness O d...

question

Mathematics, 21.04.2020 18:06

The owner of Get-A-Away Travel has recently surveyed a random sample of 337 customers to determine whether the mean age of the agency's customers is o...

question

Business, 21.04.2020 18:06

Mrs. Simpson buys loaves of bread and quarts of milk each week at prices of $1 and 80 cents, respectively. At present she is buying these products in...

question

Business, 21.04.2020 18:06

A produce distributor uses 790 packing crates a month, which it purchases at a cost of $10 each. The manager has assigned an annual carrying cost of 3...

question

Mathematics, 21.04.2020 18:06

An author signed copies of her newest book for 57 minutes until the bookstore closed at 5:00 What time did the author begin signing books? 4:03...

question

Mathematics, 21.04.2020 18:06

3. Customers arrive at a full-service one-pump gas station at rate of 20 cars per hour. However, customers will go to another station if there are at...

question

Business, 21.04.2020 18:06

Niles Company granted 111 million of its no par common shares to executives, subject to forfeiture if employment is terminated within three years. The...

question

Business, 21.04.2020 18:06

As part of its new Lean program, Qwik-and-Done has signed a long-term contract with Lighting Manufacturers and will now place orders for its LED lamps...

question

Business, 21.04.2020 18:06

A saleswoman works for a base salary of $420 a month plus 6% commission on all the merchandise she sells beyond $7,000. If she sells $8,200 worth of m...

question

Mathematics, 21.04.2020 18:06

The diameter of a circle is 8 cm. find the circumference to the nearest tenth please answer thank you...

question

English, 21.04.2020 18:06

Each person, regardless of age or backgrounds, have the right to krump. How should the sentence above be rewritten to correct the subject-...

question

Health, 21.04.2020 18:06

Which of the following is NOT a sign and symptom of low blood sugar diabetic emergency? dizziness O red, blotchy skin O hunger...

question

Mathematics, 21.04.2020 18:06

Given the directrix of y = 4 and focus of (0, 2), which is the equation of the parabola?...

question

History, 21.04.2020 18:06

Considering that the Supreme Court can make decisions that permanently change HOW we interpret the Constitution and that Justices serve lifelong terms...

question

Physics, 21.04.2020 18:06

An unstable particle is created in the upper atmosphere from a cosmic ray and travels straight down toward the surface of the earth with a speed of 0....

More questions: Chemistry Another questions