$AllWebApps = Get-AzureRMWebApp

$result = @()
ForEach($app in $AllWebApps)
{
    $hash = @{
        'Name' = $app.Name;
        'Location' = $app.Location;
    }

    $Tags = $app.tags
    ForEach($TagKey in $Tags.Keys)
    {
        $hash += @{$TagKey = $Tags.$TagKey}
    }

    $obj = New-Object -TypeName psobject -Property $hash

    $result += $obj
}

$result