3 years ago

Can someone please tell me how to do this! For important test tomorrow!

Chemistry

2 answers:

Rom4ik [11]3 years ago

7 0

Link what you need help with and I might be able to help

chubhunter [2.5K]3 years ago

7 0

<span>1.428 mol H. 8.60 x 1023 atoms is your answer</span>

You might be interested in

EASY POINTS what are the planets in order

Ann [662]

Earth mars Saturn venus Jupiter mercury Uranus Neptune

4 0

3 years ago

Read 2 more answers

Calculate the molar mass of Li2SO4.

asambeis [7]

Answer:

109.94 g/mol

Explanation:

Li is 6.94 and there's 2 of those = 13.88

1 S = 32.06

4 O = 63.996

Add all of those together to get 109.936 round to 109.94

3 0

3 years ago

A student is given the following information about an unknown solution:

Harlamova29_29 [7]

Answer:

answer is strong base hope it helps

3 0

3 years ago

Read 2 more answers

You are given a solution of HCOOH (formic acid) with an approximate concentration of 0.20 M and you will titrate this with a 0.1

jeka57 [31]

Answer:

$\boxed{\text{36 mL}}$

Explanation:

1. Write the balanced chemical equation.

$\rm HCOOH + NaOH $ \longrightarrow$ HCOONa + H$_{2}$O$

2. Calculate the moles of HCOOH

$\text{Moles of HCOOH} =\text{20.00 mL HCOOH } \times \dfrac{\text{0.20 mmol HCOOHl}}{\text{1 mL HCOOH}} = \text{4.00 mmol HCOOH}$

3. Calculate the moles of NaOH.

$\text{Moles of NaOH = 4.00 mmol HCOOH } \times \dfrac{\text{1 mmol NaOH} }{\text{1 mmol HCOOH}} = \text{4.00 mmol NaOH}$

4. Calculate the volume of NaOH

$c = \text{4.00 mmol NaOH } \times \dfrac{\text{1 mL NaOH }}{\text{0.1105 mmol NaOH }} = \textbf{36 mL NaOH }\\\\\text{The titration will require }\boxed{\textbf{36 mL of NaOH}}$

3 0

3 years ago

This is a model of a Neon atom.

andreev551 [17]

I think the answer is C

3 0

3 years ago